The document summarizes a study on the cold forming behavior of an aluminum metal matrix composite. Specifically, it investigates cold upsetting of an aluminum-boron carbide-silicon carbide composite fabricated through stir casting. Six composite specimens were made with varying volume percentages of boron carbide and silicon carbide reinforcements in an aluminum matrix. A cold upsetting test was conducted to determine the maximum true axial stress, true hoop stress, and hydrostatic stress of the composites. The results showed that the reinforcements improved the compressive strength of the aluminum composite based on the stress-strain curves.
Corrosion Characterization of Aluminium 356 Hybrid Composites in Neutral Chlo...ijtsrd
Hybrid composites are the composites which contain two different reinforcements in them. One of the reinforcements will be added in different quantities and another one will be added with same quantity. In this work hybrid composites of aluminium 356 are manufactured by adding fly ash and silicon carbide particulates. Composites are manufactured by liquid melt metallurgy technique using vortex method. Composites containing 2% fly ash and 2, 4 and 6 weight percentages of SiC particulates were manufactured. Matrix alloy was also casted in the same way for comparison. Static weight loss corrosion test and potentiodynamic polarization tests were conducted in different concentrated solutions of neutral chloride like sodium chloride. In both the tests the hybrid composites exhibited decreased corrosion rate with increase in reinforcement content. Hence hybrid composites are more suitable than the matrix alloy for applications. V. Bheema Raju | S. Kusuma | P. V. Krupakara | H. C. Ananda Murthy"Corrosion Characterization of Aluminium 356 Hybrid Composites in Neutral Chloride Medium" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-1 , December 2017, URL: http://www.ijtsrd.com/papers/ijtsrd8253.pdf http://www.ijtsrd.com/chemistry/physical-chemistry/8253/corrosion-characterization-of-aluminium-356-hybrid-composites-in-neutral-chloride-medium/v-bheema-raju
Reinforcing Aluminium with other metals to form a composite, improves the physical
and chemical properties of it. In this study, Aluminium which forms the base matrix is
stir casted with various weight percentages of Cr2O3 and TiB2. The properties
corrosion in acidic medium and tensile strength of the composites, are tested using
experimental methods and finally analyzed.
Studies on Al8081-B4C Metal Matrix Composites Fabricated by Stir Casting MethodIJMER
Aluminium MMCs are preferred in the fields of aerospace, military, automotive, marine and
in many other domestic applications. In the present work, an attempt has been made to develop and
study the, Mechanical properties of Al-8081/B4C reinforced aluminium metal matrix composites. The
composite was prepared by using Liquid Metallurgy Route (Stir Casting Technique). Liquid state has
some important advantages such as better matrix particle bonding, easier control of matrix structure,
simplicity, low cost of processing, nearer to net shape and wide selection of material. Al-8081 alloy
was taken as the base matrix to which B4C particulates are used as reinforcements. Al8081-B4C
composites were prepared by varying weight percentage of B4C i.e 0 to 6 %, in steps of two. The
objective is to study the effect of B4C particulates on mechanical properties such as ultimate tensile
strength, yield strength and hardness of Al8081 alloy composites. The results of this study revealed
that, as the B4C content was increased, there were significant increases in the ultimate tensile strength,
yield strength and hardness in the composites as compared to the base matrix
Fabrication and evaluation of mechanical properties of al6061 IJARIIT
Metal matrix composite are widely used in automotive industries because they exhibits different mechanical properties
such as high strength and good wear resistance, high specific stiffness, low weight and high hardness etc. Due to these properties
metal matrix composite with particulate reinforcement and fabricating method has become one of the most important areas of
research. The work is mainly focus on fabrication of Al 6061 reinforced with 4% B4C (particle size 100 mesh) & 4% Cu and
method used for fabrication is stir casting method. Tensile strength, hardness, impact strength, microstructure of fabricated
composite are used to characterize it. By addition of B4C & Cu tensile strength and hardness of the fabricated composite has
increased and slightly decreased in impact strength. Scanning Electron microscopy is used to confirm the microstructure and
uniform distribution of B4C & Cu particles in metal matrix composite. The value of tensile strength increase up to 20% and
hardness increase upto15% due to addition of B4C & Cu paritcles.The physical and mechanical properties of composite are
improved so it can be used for automotive industrial applications.
Computer Science
Active and Programmable Networks
Active safety systems
Ad Hoc & Sensor Network
Ad hoc networks for pervasive communications
Adaptive, autonomic and context-aware computing
Advance Computing technology and their application
Advanced Computing Architectures and New Programming Models
Advanced control and measurement
Aeronautical Engineering,
Agent-based middleware
Alert applications
Automotive, marine and aero-space control and all other control applications
Autonomic and self-managing middleware
Autonomous vehicle
Biochemistry
Bioinformatics
BioTechnology(Chemistry, Mathematics, Statistics, Geology)
Broadband and intelligent networks
Broadband wireless technologies
CAD/CAM/CAT/CIM
Call admission and flow/congestion control
Capacity planning and dimensioning
Changing Access to Patient Information
Channel capacity modelling and analysis
Civil Engineering,
Cloud Computing and Applications
Collaborative applications
Communication application
Communication architectures for pervasive computing
Communication systems
Computational intelligence
Computer and microprocessor-based control
Computer Architecture and Embedded Systems
Computer Business
Computer Sciences and Applications
Computer Vision
Computer-based information systems in health care
Computing Ethics
Computing Practices & Applications
Congestion and/or Flow Control
Content Distribution
Context-awareness and middleware
Creativity in Internet management and retailing
Cross-layer design and Physical layer based issue
Cryptography
Data Base Management
Data fusion
Data Mining
Data retrieval
Data Storage Management
Decision analysis methods
Decision making
Digital Economy and Digital Divide
Digital signal processing theory
Distributed Sensor Networks
Drives automation
Drug Design,
Drug Development
DSP implementation
E-Business
E-Commerce
E-Government
Electronic transceiver device for Retail Marketing Industries
Electronics Engineering,
Embeded Computer System
Emerging advances in business and its applications
Emerging signal processing areas
Enabling technologies for pervasive systems
Energy-efficient and green pervasive computing
Environmental Engineering,
Estimation and identification techniques
Evaluation techniques for middleware solutions
Event-based, publish/subscribe, and message-oriented middleware
Evolutionary computing and intelligent systems
Expert approaches
Facilities planning and management
Flexible manufacturing systems
Formal methods and tools for designing
Fuzzy algorithms
Fuzzy logics
GPS and location-based app
Corrosion Characterization of Aluminium 356 Hybrid Composites in Neutral Chlo...ijtsrd
Hybrid composites are the composites which contain two different reinforcements in them. One of the reinforcements will be added in different quantities and another one will be added with same quantity. In this work hybrid composites of aluminium 356 are manufactured by adding fly ash and silicon carbide particulates. Composites are manufactured by liquid melt metallurgy technique using vortex method. Composites containing 2% fly ash and 2, 4 and 6 weight percentages of SiC particulates were manufactured. Matrix alloy was also casted in the same way for comparison. Static weight loss corrosion test and potentiodynamic polarization tests were conducted in different concentrated solutions of neutral chloride like sodium chloride. In both the tests the hybrid composites exhibited decreased corrosion rate with increase in reinforcement content. Hence hybrid composites are more suitable than the matrix alloy for applications. V. Bheema Raju | S. Kusuma | P. V. Krupakara | H. C. Ananda Murthy"Corrosion Characterization of Aluminium 356 Hybrid Composites in Neutral Chloride Medium" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-1 , December 2017, URL: http://www.ijtsrd.com/papers/ijtsrd8253.pdf http://www.ijtsrd.com/chemistry/physical-chemistry/8253/corrosion-characterization-of-aluminium-356-hybrid-composites-in-neutral-chloride-medium/v-bheema-raju
Reinforcing Aluminium with other metals to form a composite, improves the physical
and chemical properties of it. In this study, Aluminium which forms the base matrix is
stir casted with various weight percentages of Cr2O3 and TiB2. The properties
corrosion in acidic medium and tensile strength of the composites, are tested using
experimental methods and finally analyzed.
Studies on Al8081-B4C Metal Matrix Composites Fabricated by Stir Casting MethodIJMER
Aluminium MMCs are preferred in the fields of aerospace, military, automotive, marine and
in many other domestic applications. In the present work, an attempt has been made to develop and
study the, Mechanical properties of Al-8081/B4C reinforced aluminium metal matrix composites. The
composite was prepared by using Liquid Metallurgy Route (Stir Casting Technique). Liquid state has
some important advantages such as better matrix particle bonding, easier control of matrix structure,
simplicity, low cost of processing, nearer to net shape and wide selection of material. Al-8081 alloy
was taken as the base matrix to which B4C particulates are used as reinforcements. Al8081-B4C
composites were prepared by varying weight percentage of B4C i.e 0 to 6 %, in steps of two. The
objective is to study the effect of B4C particulates on mechanical properties such as ultimate tensile
strength, yield strength and hardness of Al8081 alloy composites. The results of this study revealed
that, as the B4C content was increased, there were significant increases in the ultimate tensile strength,
yield strength and hardness in the composites as compared to the base matrix
Fabrication and evaluation of mechanical properties of al6061 IJARIIT
Metal matrix composite are widely used in automotive industries because they exhibits different mechanical properties
such as high strength and good wear resistance, high specific stiffness, low weight and high hardness etc. Due to these properties
metal matrix composite with particulate reinforcement and fabricating method has become one of the most important areas of
research. The work is mainly focus on fabrication of Al 6061 reinforced with 4% B4C (particle size 100 mesh) & 4% Cu and
method used for fabrication is stir casting method. Tensile strength, hardness, impact strength, microstructure of fabricated
composite are used to characterize it. By addition of B4C & Cu tensile strength and hardness of the fabricated composite has
increased and slightly decreased in impact strength. Scanning Electron microscopy is used to confirm the microstructure and
uniform distribution of B4C & Cu particles in metal matrix composite. The value of tensile strength increase up to 20% and
hardness increase upto15% due to addition of B4C & Cu paritcles.The physical and mechanical properties of composite are
improved so it can be used for automotive industrial applications.
Computer Science
Active and Programmable Networks
Active safety systems
Ad Hoc & Sensor Network
Ad hoc networks for pervasive communications
Adaptive, autonomic and context-aware computing
Advance Computing technology and their application
Advanced Computing Architectures and New Programming Models
Advanced control and measurement
Aeronautical Engineering,
Agent-based middleware
Alert applications
Automotive, marine and aero-space control and all other control applications
Autonomic and self-managing middleware
Autonomous vehicle
Biochemistry
Bioinformatics
BioTechnology(Chemistry, Mathematics, Statistics, Geology)
Broadband and intelligent networks
Broadband wireless technologies
CAD/CAM/CAT/CIM
Call admission and flow/congestion control
Capacity planning and dimensioning
Changing Access to Patient Information
Channel capacity modelling and analysis
Civil Engineering,
Cloud Computing and Applications
Collaborative applications
Communication application
Communication architectures for pervasive computing
Communication systems
Computational intelligence
Computer and microprocessor-based control
Computer Architecture and Embedded Systems
Computer Business
Computer Sciences and Applications
Computer Vision
Computer-based information systems in health care
Computing Ethics
Computing Practices & Applications
Congestion and/or Flow Control
Content Distribution
Context-awareness and middleware
Creativity in Internet management and retailing
Cross-layer design and Physical layer based issue
Cryptography
Data Base Management
Data fusion
Data Mining
Data retrieval
Data Storage Management
Decision analysis methods
Decision making
Digital Economy and Digital Divide
Digital signal processing theory
Distributed Sensor Networks
Drives automation
Drug Design,
Drug Development
DSP implementation
E-Business
E-Commerce
E-Government
Electronic transceiver device for Retail Marketing Industries
Electronics Engineering,
Embeded Computer System
Emerging advances in business and its applications
Emerging signal processing areas
Enabling technologies for pervasive systems
Energy-efficient and green pervasive computing
Environmental Engineering,
Estimation and identification techniques
Evaluation techniques for middleware solutions
Event-based, publish/subscribe, and message-oriented middleware
Evolutionary computing and intelligent systems
Expert approaches
Facilities planning and management
Flexible manufacturing systems
Formal methods and tools for designing
Fuzzy algorithms
Fuzzy logics
GPS and location-based app
Microstructure and Hardness of Aluminium Alloy- Fused Silica Particulate Comp...AM Publications
Aluminum matrix composites (AMCs) refer to the class of light weight high performance aluminum centric
material systems. The reinforcement in AMCs could be in the form of continuous/discontinuous fibers, whiskers or particulates,
in volume fractions. Properties of AMCs can be tailored to the demands of different industrial applications by suitable
combinations of matrix, reinforcement and processing route. This work focuses on the fabrication of aluminum alloy (LM13)
matrix composites reinforced with 9%, 12% &15% fused silica particulates using stir casting route. The microstructure and
hardness of the fabricated composite were analyzed and reported.
Synthesis And Characterization of Aluminum –Silicon-Fly Ash Composite By Stir...IRJESJOURNAL
Abstract :- In this work aluminium 7075 as matrix and silicon carbide and fly ash as reinforcements has been used. The %wt of reinforcement are varied to study the difference in aluminium property. Following are the samples are aluminium 7075 as 100%, aluminium 7075 90% + 10% SiC, and aluminium 7075 90% + 10% fly ash. The materials are obtained by stir casting technique. During casting 300 grams of aluminium has been taken as sample 1. 270grams of aluminium has been taken with 30grams of SiC as sample 2. The third sample is the mixture of 270grams of aluminium with 30grams of fly ash. Then the materials are made in the form of cylindrical rod of 30mm diameter and max length of 70mm. The composites are analysed for the mechanical study and the results are obtained based on hardness and the work has been extended to study the micro structure of the specimen by SEM analysis and Chemical Conformation.
Aluminium Matrix Composites (AMC’s) are widely used in aerospace, automotive,
structural and marine applications due to their high strength to weight ratio, corrosion
resistance. In AMC one of constituent is aluminium or its alloy which forms a network
called as matrix phase and other constituent is embedded in matrix made of harder material
generally ceramic or non metallic material called as reinforcement. Various processing
techniques are available for manufacturing of AMC’s. Stir casting is one of the economical
and extensively used methods to enhance attractive properties of AMC’s. This paper
presents an overview of stir casing process, process parameter and preparation of AMC
using aluminium alloy as matrix phase and alumina (Al2O3) as reinforcement by varying
their proportion.
Studies On Microstructure And Mechanical Properties Of Flyash Reinforced Al20...dbpublications
The aim is to study the mechanical property and Tribological behavior of Al2024/flyash composite with various weight fractions (3%, 6%, 9%) were prepared by squeeze casting method. The average particle size of flyash is 45-50 μm. In addition, Al2024 alloys were cast for comparison purposes. Microstructure, hardness and tensile properties of these composites were evaluated and compared with as-cast alloy and the composites. In addition, tribological properties of these composites were evaluated using a Pin-on-Disc apparatus with different parameters of varying loads of 10N and 50N and(with constant parameters such as time of 10 minutes, sliding velocity of 3 m/s, track diameter of 150mm).The microstructure of the composites shows homogenous distribution of flyash particles in the Al matrix composite. The wear and mechanical properties of composites improve with increasing the weight fraction of flyash. The aim of present study is to evaluate the effect of microstructure, mechanical and tribological properties of aluminium alloy Al2024/flyash metal matrix composites
DEVELOPMENT AND TRIBOLOGICAL CHARACTERIZATION OF DUAL PARTICLE AND TRIPLE PAR...ijmech
The this work the study on hardness and wear behaviour of dual particle and triple particle size Alumina (Al2O3) reinforced aluminium alloy based metal matrix composite (Al2O3-Al MMC) was carried out. AlMMCs were prepared using 10 vol% Al2O3 reinforcement into aluminium metal matrix and developed using stir casting process. Stir casting is a most suitable process for the production of particulate MMC in which the reinforcement is introduced in to the molten matrix material with simultaneous stirring. The reinforcement in the range of particle size with Dual particle and Triple particle at 10% olume fraction with range from coarse to fine size were used (210µ, 180µ, 80µ & 10µ).The hardness of the composite was
determined by Vickers hardness tester and Brinell Hardness Tester. Tensile strength was determined by Universal Testing Machine (UTM). The wear rate was found by pin-on-disc type wear testing machine with steel disc of 60HRC hardness in dry sliding condition. Wear test was conducted on all the samples
at speeds of 300,600 and 900 rpm by varying the load (2kg, 4kg, 6kg & 8kg) at a constant sliding distance of 55mm. The wear track studies were carried out by optical microscope .The test results showed that Dual particle composite and triple particle composite exhibited better hardness compared to as cast AL- 7075. Strength of Triple particle reinforced MMC was found to be higher than that of dual particle reinforced composite material. The wear resistance properties of dual particle MMC was higher compared to triple particle reinforced MMC. The secondary process will further enhances the wear resistance of the composite and also that heat treatment will promote the wear resistance.
Evaluation of Mechanical Properties of Al 7075 Alloy, Flyash, SiC and Redmud ...ijsrd.com
Aluminium alloys are widely used in aerospace automobile industries due to their low density and good mechanical properties, better corrosion resistance and wear, low thermal coefficient of expansion as compared to convention metals and alloys. The main aim involved in the present work is focused on study of mechanical properties of Al7075 alloy composite having varying weight percentages of 3% - 6% of Silicon Carbide, Fly ash and Red mud were fabricated by liquid metallurgy (Stir Casting) method. The casted composite specimens were machined as per BS: 18: 1962 test standards. The result obtained reveals that tensile strength, impact strength and wear resistance is higher in Al7075-SiC-Redmud samples when compared to Al7075-SiC-Flyash samples.
Fly ash, Sic, Red mud, Al7075 alloy composite, mechanical properties, and sti...ijsrd.com
The aluminium Al 6061 alloys are mainly used in the application of automobile and aeronautical industries. In the present investigation Al6061 alloy composites having varying weight percentages of (3% - 6%) Silicon Carbide, Fly ash and Red mud were fabricated by liquid metallurgical (Stir Casting) method. The casted composite specimens were machined as per BS: 18: 1962 test standards. The specimens were tested to know the mechanical properties such as tensile test, impact (Charpy) test and wear test. The result reveals higher tensile strength, impact strength and wears resistance in Al6061-SiC-Flyash samples when compared to Al6061-SiC-Redmud samples.
Corrosion Characterization of Aluminium 6061/ Tib2 Metal Matrix Composites in...ijtsrd
This paper deals with the high corrosion resistance developed by the metal matrix composites when compared with that of matrix alloy. Matrix selected is Al6061 and reinforcement selected is TiB2 particulates, which is a ceramic material. The liquid melt metallurgy technique is used to prepare composites. Preheated but uncoated TiB2 particulates are added to the melt. By adding degasifying tablets, the melt is stirred well. Metal matrix composites containing 2, 4 and 6 weight percentage of TiB2 are prepared. Bar castings were taken and are cut into cylindrical discs of 20mm diameter and 20mm thickness. Corrosion tests were conducted at room temperature [230 C] using conventional weight loss method according to ASTM G69-80. Different concentrated sodium hydroxide solutions are used as corrodents. Weighed specimens dipped in corrodent solutions and were taken out at every 24 hours of interval up to 96 hours. Four specimens for each condition and time were used and taken out at every 24 hours of interval. Corrosion rates were calculated using the formula 534DAT/W. In all concentrations of sodium hydroxide solutions, corrosion rate decreases with increase in exposure time for matrix and metal matrix composites. As TiB2 content increases the composites become more corrosion resistant due to insulating nature of ceramic material and less exposure of matrix alloy in those metal matrix composites. V. Latha | Dr. Radha. H. R | Dr. P. V. Krupakara | R. Lakshmi"Corrosion Characterization of Aluminium 6061/ Tib2 Metal Matrix Composites in Sodium Hydroxide Medium" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-4 , June 2018, URL: http://www.ijtsrd.com/papers/ijtsrd15749.pdf http://www.ijtsrd.com/chemistry/physical-chemistry/15749/corrosion-characterization-of-aluminium-6061-tib2-metal-matrix-composites-in-sodium-hydroxide-medium/v-latha
Microstructure and Wear Behavior of B4C Particulates Reinforced Al-4.5%Cu All...IOSRJMCE
The work is carried out to investigate the microstructure and wear behavior of B4C reinforced Al- 4.5% Cu alloy metal matrix composites. In the present work Al-4.5% Cu alloy was taken as the base matrix and B4C particulates as reinforcement material to prepare metal matrix composites by stir casting method. For metal matrix composites the reinforcement material was varied from 0 to 4 wt. % in steps of 2 wt. %. The wear resistance of metal matrix composites was studied by performing dry sliding wear test using a pin on disc apparatus. The experiments were conducted at a constant sliding speed of 300rpm and sliding distance of 4000m over a varying load of 0.5, 1 and 1.5Kg. Similarly experiments were conducted at a constant load of 1.5Kg and sliding distance of 4000m over a varying sliding speed of 200, 300 and 400rpm. The results showed that the wear resistance of Al-Cu-2%B4C and 4% B4C composites were better than the unreinforced alloy. The wear in terms of height loss found to increase with the load and sliding speed. To study the dominant sliding wear mechanism for various test conditions, the worn surfaces were analyzed using optical microscopy
Effect of Milling Time on Al-Fe-Cr-20 Wt. % Al2O3composite Prepared Through B...IJERA Editor
One of the main challenges towards achieving a homogeneous distribution of the ceramic phase in the metal matrix composites is agglomeration of the reinforcement particles. Mechanical alloying is among the most important processing techniques used for manufacturing of metal matrix composites (MMCs).An attempt was made to synthesize Al-Fe-Cr-Al2O3composites synthesized through mechanical alloying. Al2O3 is used as reinforcement. Ethanol (5 wt. %) has been used as a process control agent (PCA). Mechanical alloying is carried out in a conventional ball mill using stainless steel grinding media at 115 rpm in the argon environment for 5h, 10h and 15h. The ball to powder weight ratio was maintained at 20:1. The characterization of the ball milled powder was followed by scanning electron microscopy (SEM). Showed the formation of a homogeneous phase for all compositions after milling for 15 h. XRD patterns were recorded for the milled powders, and analyzed using Williamson–Hall method and Scherrer’s equation to determine the lattice strain and grain size.EDX is performed to check the contamination of composites during the mechanical alloying.XRD is used to study structural evolution of synthesized aluminium composite. Effect of milling time is investigated on synthesized Al-Fe-Cr-20 wt. % Al2O3 composites.
A Study on Mechanical Properties of Aluminium Alloy (LM6) Reinforced with SiC...IOSR Journals
This work deals with fabricating or producing aluminium based metal matrix composite and then
studying its microstructure and mechanical properties such as tensile strength, impact strength and wear
behavior of produced test specimen. In the present study a modest attempt has been made to develop aluminium
based MMCs with reinforcing material, with an objective to develop a conventional low cast method of
producing MMCs and to obtain homogeneous dispersion of reinforced material. To achieve this objective stir
casting technique has been adopted. Aluminium Alloy (LM6) and SiC, Fly Ash has been chosen as matrix and
reinforcing material respectively. Experiment has been conducted by varying weight fraction of Fly Ash ( 5%
and 15%) while keeping SiC constant(5%). The result shown that the increase in addition of Fly Ash increases
the Tensile Strength, Impact Strength, Wear Resistance of the specimen and decreases the percentage of
Elongation
Microstructure and Hardness of Aluminium Alloy- Fused Silica Particulate Comp...AM Publications
Aluminum matrix composites (AMCs) refer to the class of light weight high performance aluminum centric
material systems. The reinforcement in AMCs could be in the form of continuous/discontinuous fibers, whiskers or particulates,
in volume fractions. Properties of AMCs can be tailored to the demands of different industrial applications by suitable
combinations of matrix, reinforcement and processing route. This work focuses on the fabrication of aluminum alloy (LM13)
matrix composites reinforced with 9%, 12% &15% fused silica particulates using stir casting route. The microstructure and
hardness of the fabricated composite were analyzed and reported.
Synthesis And Characterization of Aluminum –Silicon-Fly Ash Composite By Stir...IRJESJOURNAL
Abstract :- In this work aluminium 7075 as matrix and silicon carbide and fly ash as reinforcements has been used. The %wt of reinforcement are varied to study the difference in aluminium property. Following are the samples are aluminium 7075 as 100%, aluminium 7075 90% + 10% SiC, and aluminium 7075 90% + 10% fly ash. The materials are obtained by stir casting technique. During casting 300 grams of aluminium has been taken as sample 1. 270grams of aluminium has been taken with 30grams of SiC as sample 2. The third sample is the mixture of 270grams of aluminium with 30grams of fly ash. Then the materials are made in the form of cylindrical rod of 30mm diameter and max length of 70mm. The composites are analysed for the mechanical study and the results are obtained based on hardness and the work has been extended to study the micro structure of the specimen by SEM analysis and Chemical Conformation.
Aluminium Matrix Composites (AMC’s) are widely used in aerospace, automotive,
structural and marine applications due to their high strength to weight ratio, corrosion
resistance. In AMC one of constituent is aluminium or its alloy which forms a network
called as matrix phase and other constituent is embedded in matrix made of harder material
generally ceramic or non metallic material called as reinforcement. Various processing
techniques are available for manufacturing of AMC’s. Stir casting is one of the economical
and extensively used methods to enhance attractive properties of AMC’s. This paper
presents an overview of stir casing process, process parameter and preparation of AMC
using aluminium alloy as matrix phase and alumina (Al2O3) as reinforcement by varying
their proportion.
Studies On Microstructure And Mechanical Properties Of Flyash Reinforced Al20...dbpublications
The aim is to study the mechanical property and Tribological behavior of Al2024/flyash composite with various weight fractions (3%, 6%, 9%) were prepared by squeeze casting method. The average particle size of flyash is 45-50 μm. In addition, Al2024 alloys were cast for comparison purposes. Microstructure, hardness and tensile properties of these composites were evaluated and compared with as-cast alloy and the composites. In addition, tribological properties of these composites were evaluated using a Pin-on-Disc apparatus with different parameters of varying loads of 10N and 50N and(with constant parameters such as time of 10 minutes, sliding velocity of 3 m/s, track diameter of 150mm).The microstructure of the composites shows homogenous distribution of flyash particles in the Al matrix composite. The wear and mechanical properties of composites improve with increasing the weight fraction of flyash. The aim of present study is to evaluate the effect of microstructure, mechanical and tribological properties of aluminium alloy Al2024/flyash metal matrix composites
DEVELOPMENT AND TRIBOLOGICAL CHARACTERIZATION OF DUAL PARTICLE AND TRIPLE PAR...ijmech
The this work the study on hardness and wear behaviour of dual particle and triple particle size Alumina (Al2O3) reinforced aluminium alloy based metal matrix composite (Al2O3-Al MMC) was carried out. AlMMCs were prepared using 10 vol% Al2O3 reinforcement into aluminium metal matrix and developed using stir casting process. Stir casting is a most suitable process for the production of particulate MMC in which the reinforcement is introduced in to the molten matrix material with simultaneous stirring. The reinforcement in the range of particle size with Dual particle and Triple particle at 10% olume fraction with range from coarse to fine size were used (210µ, 180µ, 80µ & 10µ).The hardness of the composite was
determined by Vickers hardness tester and Brinell Hardness Tester. Tensile strength was determined by Universal Testing Machine (UTM). The wear rate was found by pin-on-disc type wear testing machine with steel disc of 60HRC hardness in dry sliding condition. Wear test was conducted on all the samples
at speeds of 300,600 and 900 rpm by varying the load (2kg, 4kg, 6kg & 8kg) at a constant sliding distance of 55mm. The wear track studies were carried out by optical microscope .The test results showed that Dual particle composite and triple particle composite exhibited better hardness compared to as cast AL- 7075. Strength of Triple particle reinforced MMC was found to be higher than that of dual particle reinforced composite material. The wear resistance properties of dual particle MMC was higher compared to triple particle reinforced MMC. The secondary process will further enhances the wear resistance of the composite and also that heat treatment will promote the wear resistance.
Evaluation of Mechanical Properties of Al 7075 Alloy, Flyash, SiC and Redmud ...ijsrd.com
Aluminium alloys are widely used in aerospace automobile industries due to their low density and good mechanical properties, better corrosion resistance and wear, low thermal coefficient of expansion as compared to convention metals and alloys. The main aim involved in the present work is focused on study of mechanical properties of Al7075 alloy composite having varying weight percentages of 3% - 6% of Silicon Carbide, Fly ash and Red mud were fabricated by liquid metallurgy (Stir Casting) method. The casted composite specimens were machined as per BS: 18: 1962 test standards. The result obtained reveals that tensile strength, impact strength and wear resistance is higher in Al7075-SiC-Redmud samples when compared to Al7075-SiC-Flyash samples.
Fly ash, Sic, Red mud, Al7075 alloy composite, mechanical properties, and sti...ijsrd.com
The aluminium Al 6061 alloys are mainly used in the application of automobile and aeronautical industries. In the present investigation Al6061 alloy composites having varying weight percentages of (3% - 6%) Silicon Carbide, Fly ash and Red mud were fabricated by liquid metallurgical (Stir Casting) method. The casted composite specimens were machined as per BS: 18: 1962 test standards. The specimens were tested to know the mechanical properties such as tensile test, impact (Charpy) test and wear test. The result reveals higher tensile strength, impact strength and wears resistance in Al6061-SiC-Flyash samples when compared to Al6061-SiC-Redmud samples.
Corrosion Characterization of Aluminium 6061/ Tib2 Metal Matrix Composites in...ijtsrd
This paper deals with the high corrosion resistance developed by the metal matrix composites when compared with that of matrix alloy. Matrix selected is Al6061 and reinforcement selected is TiB2 particulates, which is a ceramic material. The liquid melt metallurgy technique is used to prepare composites. Preheated but uncoated TiB2 particulates are added to the melt. By adding degasifying tablets, the melt is stirred well. Metal matrix composites containing 2, 4 and 6 weight percentage of TiB2 are prepared. Bar castings were taken and are cut into cylindrical discs of 20mm diameter and 20mm thickness. Corrosion tests were conducted at room temperature [230 C] using conventional weight loss method according to ASTM G69-80. Different concentrated sodium hydroxide solutions are used as corrodents. Weighed specimens dipped in corrodent solutions and were taken out at every 24 hours of interval up to 96 hours. Four specimens for each condition and time were used and taken out at every 24 hours of interval. Corrosion rates were calculated using the formula 534DAT/W. In all concentrations of sodium hydroxide solutions, corrosion rate decreases with increase in exposure time for matrix and metal matrix composites. As TiB2 content increases the composites become more corrosion resistant due to insulating nature of ceramic material and less exposure of matrix alloy in those metal matrix composites. V. Latha | Dr. Radha. H. R | Dr. P. V. Krupakara | R. Lakshmi"Corrosion Characterization of Aluminium 6061/ Tib2 Metal Matrix Composites in Sodium Hydroxide Medium" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-4 , June 2018, URL: http://www.ijtsrd.com/papers/ijtsrd15749.pdf http://www.ijtsrd.com/chemistry/physical-chemistry/15749/corrosion-characterization-of-aluminium-6061-tib2-metal-matrix-composites-in-sodium-hydroxide-medium/v-latha
Microstructure and Wear Behavior of B4C Particulates Reinforced Al-4.5%Cu All...IOSRJMCE
The work is carried out to investigate the microstructure and wear behavior of B4C reinforced Al- 4.5% Cu alloy metal matrix composites. In the present work Al-4.5% Cu alloy was taken as the base matrix and B4C particulates as reinforcement material to prepare metal matrix composites by stir casting method. For metal matrix composites the reinforcement material was varied from 0 to 4 wt. % in steps of 2 wt. %. The wear resistance of metal matrix composites was studied by performing dry sliding wear test using a pin on disc apparatus. The experiments were conducted at a constant sliding speed of 300rpm and sliding distance of 4000m over a varying load of 0.5, 1 and 1.5Kg. Similarly experiments were conducted at a constant load of 1.5Kg and sliding distance of 4000m over a varying sliding speed of 200, 300 and 400rpm. The results showed that the wear resistance of Al-Cu-2%B4C and 4% B4C composites were better than the unreinforced alloy. The wear in terms of height loss found to increase with the load and sliding speed. To study the dominant sliding wear mechanism for various test conditions, the worn surfaces were analyzed using optical microscopy
Effect of Milling Time on Al-Fe-Cr-20 Wt. % Al2O3composite Prepared Through B...IJERA Editor
One of the main challenges towards achieving a homogeneous distribution of the ceramic phase in the metal matrix composites is agglomeration of the reinforcement particles. Mechanical alloying is among the most important processing techniques used for manufacturing of metal matrix composites (MMCs).An attempt was made to synthesize Al-Fe-Cr-Al2O3composites synthesized through mechanical alloying. Al2O3 is used as reinforcement. Ethanol (5 wt. %) has been used as a process control agent (PCA). Mechanical alloying is carried out in a conventional ball mill using stainless steel grinding media at 115 rpm in the argon environment for 5h, 10h and 15h. The ball to powder weight ratio was maintained at 20:1. The characterization of the ball milled powder was followed by scanning electron microscopy (SEM). Showed the formation of a homogeneous phase for all compositions after milling for 15 h. XRD patterns were recorded for the milled powders, and analyzed using Williamson–Hall method and Scherrer’s equation to determine the lattice strain and grain size.EDX is performed to check the contamination of composites during the mechanical alloying.XRD is used to study structural evolution of synthesized aluminium composite. Effect of milling time is investigated on synthesized Al-Fe-Cr-20 wt. % Al2O3 composites.
A Study on Mechanical Properties of Aluminium Alloy (LM6) Reinforced with SiC...IOSR Journals
This work deals with fabricating or producing aluminium based metal matrix composite and then
studying its microstructure and mechanical properties such as tensile strength, impact strength and wear
behavior of produced test specimen. In the present study a modest attempt has been made to develop aluminium
based MMCs with reinforcing material, with an objective to develop a conventional low cast method of
producing MMCs and to obtain homogeneous dispersion of reinforced material. To achieve this objective stir
casting technique has been adopted. Aluminium Alloy (LM6) and SiC, Fly Ash has been chosen as matrix and
reinforcing material respectively. Experiment has been conducted by varying weight fraction of Fly Ash ( 5%
and 15%) while keeping SiC constant(5%). The result shown that the increase in addition of Fly Ash increases
the Tensile Strength, Impact Strength, Wear Resistance of the specimen and decreases the percentage of
Elongation
Effect of silicon carbide percentage on fracture toughness of aluminium silio...eSAT Journals
Abstract Metal matrix composites are composites in which one component will be a metal and other metal or non metal. It has wide applications in various fields like automobile, turbines blades etc which needs good mechanical properties. This thesis work studies about Aluminium Silicon Carbide metal matrix composites and their properties. Earlier studies revealed that as the percentage of Silicon Carbide is increased the properties get increased up to a limit and fracture toughness gets reduced beyond that. Here, in this work different percentage of SiC is added and fracture toughness is analyzed in terms of Stress intensity factor since fracture toughness cannot be calculated directly. Both software simulation and experimental methods has been done to find out the best percentage composition. Keywords: Metal matrix composites, Aluminium Silicon Carbide, Fracture Toughness, Stress Intensity Factor
This work deals with fabricating or producing aluminum based metal matrix composite and then studying its mechanical properties such as tensile strength, hardness and wear behavior of produced test specimen. In this conditions Aluminum Alloy (LM6) –Boron Carbide and graphite metal matrix composite were fabricated by liquid metallurgy technique with different particulate weight fraction ( Gr 2% and B4C 3 %, 5%). Mechanical properties such as hardness test and compression strength are determined and tribological behavior of the composite is studied using wear test. The composite were characterized by Hardness and tensile strength tests. With the increase the amount of boron carbide, the density of the composite decreased whereas the hardness is increased. The tensile strength of the composite was increased with increase in the weight percentage of the boron carbide and Gr in the composite.
Experimental Investigation on Mechanical Properties of Hybrid Metal Matrix Co...IJMERJOURNAL
ABSTRACT : In the present investigation, the study on mechanical properties of Aluminum Hybrid Matrix Composites (AMCs) reinforced with alumina (Al2O3), silicon carbide (Sic) and graphite (Gr) particles. Al6063 alloy is used as the matrix material with varying the reinforcement of alumina at fixed quantity of 5 wt% SiC and 5 wt% of graphite. The composites were fabricated by stir casting equipment methodology with controlled speed and feed parameters. Hardness is measured by using Brinell hardness equipment and tensile properties were measured by using universal testing machine and it is compared with aluminum alloy. There was a great advancement in hardness and tensile properties by changing the compositions. The Sic and Al2O3 resulted in improving the hardness and density of their respective composites. Further, the changing the compositions of these reinforcements contributed in increased hardness and density of the composites
Effect of Sintering Temperature on Mechanical Properties of Aluminum Compositesijtsrd
Using Al, Al2O3 and SiC, different types of composites have been prepared in this experiment. Green compacts of Al composites were made at a compressing load of 1 ton and 2 ton respectively. These compacts were sintered at two different sintering temperatures of 400 °C and 450 °C in an oxygen free environment using muffle furnace for one hour followed by annealing process which took 12 hours. Sintered compacts were then sintered to micro structural examination and mechanical properties evaluation. Higher hardness has been attained for the composites containing 2.5 SiC. Attempts have been made to describe the influence of sintering temperature on the microstructure and properties of Al Al2O3 SiC composites. Samples are prepared of 100 Al, 97.5 Al 2.5 Al2O3, 92.5 Al 7.5 Al2O3, 95 Al 2.5 Al2O3 – 2.5 SiC, 92.5 Al 5 Al2O3 – 2.5 SiC, 95 Al – 5 Al2O3. The main objective of this experiment is to determine the factors that can increase hardness of Al composites. Mohd Quasim Khan ""Effect of Sintering Temperature on Mechanical Properties of Aluminum Composites"" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-4 , June 2019, URL: https://www.ijtsrd.com/papers/ijtsrd25073.pdf
Paper URL: https://www.ijtsrd.com/engineering/mechanical-engineering/25073/effect-of-sintering-temperature-on-mechanical-properties-of-aluminum-composites/mohd-quasim-khan
Development of WC-Feal Composite by Stir Casting MethodDr. Amarjeet Singh
In this paper author make an effort to develop a new
material for fulfill the need of present requirement. This
material is developed by the using of stir casting method. A
AMMC’s composite are developed to fulfill the need of present
requirements. This composite material is prepared by the use
of 3 metals. These metals are iron (Fe), aluminum (Al) and
tungsten carbide (WC).Thus this composite come under metal
matrix composite. This composite is WC – FeAl composite.
This is prepared by the use of stir casting method. The base
metals are iron and aluminum. These are having equal
quantity by weight. In this the sample is prepared by the
change the of percentage reinforcement. This is varying from
0 to 3%. A test is conduct to check their tensile strength as
well as compressive strength. By these test it is confirm that
with the increase the percentage of reinforcement in the
composite their tensile strength is decrease but their
compressive strength is increase.
Development of Aluminium Metal Matrix Composite Using Stir Casting Methodtheijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
Similar to Study on Cold Forming Behavior of Aluminum Metal Matrix Composite (20)
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
COLLEGE BUS MANAGEMENT SYSTEM PROJECT REPORT.pdfKamal Acharya
The College Bus Management system is completely developed by Visual Basic .NET Version. The application is connect with most secured database language MS SQL Server. The application is develop by using best combination of front-end and back-end languages. The application is totally design like flat user interface. This flat user interface is more attractive user interface in 2017. The application is gives more important to the system functionality. The application is to manage the student’s details, driver’s details, bus details, bus route details, bus fees details and more. The application has only one unit for admin. The admin can manage the entire application. The admin can login into the application by using username and password of the admin. The application is develop for big and small colleges. It is more user friendly for non-computer person. Even they can easily learn how to manage the application within hours. The application is more secure by the admin. The system will give an effective output for the VB.Net and SQL Server given as input to the system. The compiled java program given as input to the system, after scanning the program will generate different reports. The application generates the report for users. The admin can view and download the report of the data. The application deliver the excel format reports. Because, excel formatted reports is very easy to understand the income and expense of the college bus. This application is mainly develop for windows operating system users. In 2017, 73% of people enterprises are using windows operating system. So the application will easily install for all the windows operating system users. The application-developed size is very low. The application consumes very low space in disk. Therefore, the user can allocate very minimum local disk space for this application.
Democratizing Fuzzing at Scale by Abhishek Aryaabh.arya
Presented at NUS: Fuzzing and Software Security Summer School 2024
This keynote talks about the democratization of fuzzing at scale, highlighting the collaboration between open source communities, academia, and industry to advance the field of fuzzing. It delves into the history of fuzzing, the development of scalable fuzzing platforms, and the empowerment of community-driven research. The talk will further discuss recent advancements leveraging AI/ML and offer insights into the future evolution of the fuzzing landscape.
Event Management System Vb Net Project Report.pdfKamal Acharya
In present era, the scopes of information technology growing with a very fast .We do not see any are untouched from this industry. The scope of information technology has become wider includes: Business and industry. Household Business, Communication, Education, Entertainment, Science, Medicine, Engineering, Distance Learning, Weather Forecasting. Carrier Searching and so on.
My project named “Event Management System” is software that store and maintained all events coordinated in college. It also helpful to print related reports. My project will help to record the events coordinated by faculties with their Name, Event subject, date & details in an efficient & effective ways.
In my system we have to make a system by which a user can record all events coordinated by a particular faculty. In our proposed system some more featured are added which differs it from the existing system such as security.
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.