The document discusses the effects of alloying elements on the mechanical properties of steel. It explains that alloying elements are added to steel to change its properties and effectiveness. Some key effects of common alloying elements like carbon, manganese, chromium, nickel, and molybdenum are increasing hardness, strength, corrosion resistance, and the hardenability of steel. The percentages and effects of various alloying elements added to different types of steel are also outlined.
6.1 Annealing: Purposes of annealing, Annealing temperature range, Types and applications
6.2 Normalizing: Purposes of Normalizing, Temperature range, Broad applications of Normalizing
6.3 Hardening: Purposes of hardening, Hardening temperature range ,application
6.4 Tempering: Purpose of tempering, Types of tempering and its applications
6.5 Case hardening methods like Carburizing, Nitriding, and Cyaniding.
6.6 Heat treatment Furnaces – Muffle , Box type
Heat treatment 2 by
P.SENTHAMARAI KANNAN,
ASSISTANT PROFESSOR ,
DEPARTMENT OF MECHANICAL ENGINEERING,
KAMARAJ COLLEGE OF ENGINEERING AND TECHNOLOGY,
VIRUDHUNAGAR, TAMILNADU.
INDIA.
6.1 Annealing: Purposes of annealing, Annealing temperature range, Types and applications
6.2 Normalizing: Purposes of Normalizing, Temperature range, Broad applications of Normalizing
6.3 Hardening: Purposes of hardening, Hardening temperature range ,application
6.4 Tempering: Purpose of tempering, Types of tempering and its applications
6.5 Case hardening methods like Carburizing, Nitriding, and Cyaniding.
6.6 Heat treatment Furnaces – Muffle , Box type
Heat treatment 2 by
P.SENTHAMARAI KANNAN,
ASSISTANT PROFESSOR ,
DEPARTMENT OF MECHANICAL ENGINEERING,
KAMARAJ COLLEGE OF ENGINEERING AND TECHNOLOGY,
VIRUDHUNAGAR, TAMILNADU.
INDIA.
Bearings support moving parts, such as shafts and spindles, of a machine or mechanism.
Bearings may be classed as
(i) Rolling contact (Ball and roller) bearings.
(ii) Plain bearings.
Heat treatment defects &and its remediesNIAJ AHMED
Heat Treatment involves various heating and cooling procedures performed to effect structural changes in a material, which turn affect its mechanical properties
this ppt is useful for understanding the concept of heat treatment process in steel.
it gives the idea about the various stages of heat treatment process in details
Bearings support moving parts, such as shafts and spindles, of a machine or mechanism.
Bearings may be classed as
(i) Rolling contact (Ball and roller) bearings.
(ii) Plain bearings.
Heat treatment defects &and its remediesNIAJ AHMED
Heat Treatment involves various heating and cooling procedures performed to effect structural changes in a material, which turn affect its mechanical properties
this ppt is useful for understanding the concept of heat treatment process in steel.
it gives the idea about the various stages of heat treatment process in details
Mumbai University.
Mechanical Engineering
SEM III
Material Technology
Module 5
Effect of Alloying Elements in Steels:
Limitation of plain carbon steels, Significance of alloying elements, Effects of major and minor constituents, Effect of alloying elements on phase transformation Classification of tool steels and metallurgy of tool steels and stainless steel
various types of steel basically low carbon steels and alloy steels and how the alloying elements alter the various properties of steels , a detailed study & analysis
'Iron seemeth a simple metal but in its nature are many mysteries’. Many, but not all,of these mysteries have been solved over the past three hundred years using the combined skill of the foundryman and the knowledge of the scientist to provide today's design engineer with a family of casting alloys that offer a virtually unique combination of low cost and engineering versatility.
The various combinations of low cost with castability , strength,
Machinability , hardness, wear resistance ,corrosion resistance, thermal conductivity and damping are unequalled among all casting alloys and It makes Cast Iron most widely used metal in engineering purpose .
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
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TECHNICAL TRAINING MANUAL GENERAL FAMILIARIZATION COURSEDuvanRamosGarzon1
AIRCRAFT GENERAL
The Single Aisle is the most advanced family aircraft in service today, with fly-by-wire flight controls.
The A318, A319, A320 and A321 are twin-engine subsonic medium range aircraft.
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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.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
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Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
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.
3. WHY ALLOY ADDED TO STEEL
• ALLOYING ELEMENTS ARE ADDED TO EFFECT CHANGES IN THE PROPERTIES OF
STEELS.
THE BASIS IS TO CHANGE THE PROPERTIES OR EFFECTIVENESS OF STEEL.
6. Contni…
Stabilizing ferrite: Chromium, tungsten, molybdenum,
vanadium, aluminum, and silicon can have the effect of
lowering carbon's solubility in austenite. This results in an
increase in the amount of carbides in the steel
7. Contni…
■ Carbide forming: Many minor metals, including chromium,
tungsten, molybdenum, titanium, niobium, tantalum and
zirconium, form strong carbides that - in steel - increase
hardness and strength. Such steels are often used to make
high-speed steel and hot work tool steel.
8. CONTNI…
•Graphitizing: Silicon, nickel, cobalt and aluminum
can decrease the stability of carbides in steel,
promoting their breakdown and the formation of
free graphite.
9. CONTNI….
• INCREASE CORROSION RESISTANCE: ALUMINUM,
SILICON AND CHROMIUM FORM PROTECTIVE
OXIDE LAYERS ON THE SURFACE OF STEEL,
THEREBY PROTECTING THE METAL FROM
FURTHER DETERIORATION IN CERTAIN
ENVIRONMENTS.
10. Alloying elements added
following are the elements which are added to increase the properties
Carbon
Manganese
Chromium
Silicon
Nickel
Molybdenum
Vanadium
Tungsten
Copper
Niobium
Boron
Titanium
11. Alloying elements
Carbon
Carbon is the single most important alloying element in steel.
Carbon is essential to the formation of cementite (as well as other carbides), and to
the formation of pearlite, spheroidite, bainite, and iron-carbon martensite,
The hardness of steel (or more accurately, the hardenability) is increased by the
addition of more carbon, up to about 0.65 percent.
Beyond this amount, increases of carbon reduce toughness and
increase brittleness.
12. CEMENTITE
CEMENTITE, ALSO KNOWN AS
IRON CARBIDE, IS AN
INTERMETALLIC COMPOUND
OF IRON AND CARBON, MORE
PRECISELY AN INTERMEDIATE
TRANSITION METAL CARBIDE
WITH THE FORMULA FE₃C
14. BAINITE
BAINITE IS A PLATE-LIKE
MICROSTRUCTURE THAT
FORMS IN STEELS AT
TEMPERATURES OF 250–550 °C
(DEPENDING ON ALLOY
CONTENT).
15. Percentage present
• The steels of interest to knifemakers generally contain
between 0.5 and 1.5 percent carbon. They are described
as follows:
• Low Carbon: Under 0.4 percent
• Medium Carbon: 0.4 - 0.6 percent
• High Carbon: 0.7 - 1.5 percent
16. Manganese
•Manganese slightly increases the strength of ferrite,
and also increases the hardness penetration of steel
in the quench by decreasing the critical quenching
speed.
•Steels with manganese can be quenched in oil rather
than water.
•Manganese is present in most commercially made
steels.
17. CHROMIUM
• As with manganese, chromium has a tendency to increase hardness penetration.
This element has many interesting effects on steel. When 5 percent chromium
or more is used in conjunction with manganese, the critical quenching speed is
reduced to the point that the steel becomes air hardening.
• Chromium can also increase the toughness of steel . Probably one of the most
well known effects of chromium on steel is the tendency to resist staining and
corrosion.
• Steels with 14 percent or more chromium are referred to as stainless steels.
• Steels with chromium also have higher critical temperatures in heat
treatment.
18. SILICON
• Silicon is used as a deoxidizer in the manufacture of steel.
• It slightly increases the
strength of ferrite, and when used in conjunction with other alloys
can help increase the
toughness and hardness penetration of steel.
19. Nickel
• Nickel increases the strength of ferrite, therefore increasing the strength of the
steel.
• It is used in low alloy steels to increase toughness and hardenability.
• Nickel also tends to help reduce distortion and cracking during the quenching
phase of heat treatment.
20. MOLYBDENUM
• Molybdenum increases the hardness penetration of steel,
slows the critical quenching speed, and increases high
temperature tensile strength.
21.
22. Copper
•The addition of copper in amounts of 0.2 to 0.5
percent primarily improves steels resistance to
atmospheric corrosion.
23. Boron
Boron can significantly increase the hardenability of
steel without loss of ductility. Its effectiveness is most
noticeable at lower carbon levels. The addition of boron
is usually in very small amounts ranging from 0.0005 to
0.003 percent.