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
The process of transformation of a substance from liquid to solid state in which the crystal lattice forms and crystals appear.
•Volume shrinkage or volume contraction
In this presentation almost complete data are available like synthesis techniques,properties, functionalisations and Applications, etc. This is very useful for Students who studied about Silicides.
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
The process of transformation of a substance from liquid to solid state in which the crystal lattice forms and crystals appear.
•Volume shrinkage or volume contraction
In this presentation almost complete data are available like synthesis techniques,properties, functionalisations and Applications, etc. This is very useful for Students who studied about Silicides.
Shape Memory Alloy is one type of Smart Material.It can Remember its Original Shape.It has 2 way memory,i.e:- it can Remember 2 Shape,one in Low temperature and other in high temperature.
Steel and its alloys , Nickel alloys , super alloys.KrishnaMundada4
This presentation contains :
1.steel and its alloys.
2.effect of addition of different elements in alloys.
3.Nickel alloys
4.Super alloys
5.Applications
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Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
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About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
2. Introduction
Mechanical Properties of regular engineering
materials are affected by change in
Temperature.
Special High Temperature materials are used for
high temperature working conditions.
4. Properties of High temperature
Materials
High temperature resistance
High oxidation and corrosion resistance
High creep and fatigue strength
Resistance to grain boundary
Resistance to grain boundary weakening
5. Types of high temperature
materials
High temperature
materials
Iron base
alloys
Nickel base
alloys
Cobalt base
alloys
Refractory
metals and
alloys
Ceramics
6. Iron Base Alloys
Regular iron and carbon steels have poor
tempering and creep resistance upto 450⁰C
Plain Carbon steel is alloyed with Mo, W, Va
and Cr to improve creep resistance.
Iron base Carbon steels:
1)Low alloy steel
2)Medium alloy steel
3) High alloy steel
7. Iron base casting alloys:
1)Iron Chromium alloy
2)Iron Chromium Nickel Alloy
Wrought Iron base alloys:
Varying alloy elements composition
8. Nickel base alloys
Nickel has very low coefficient of thermal
expansion.
Nickel is alloyed with Cr, Mo, and Co to improve
specific properties.
Different Nickel base alloys are:
1) Ni-Cr
High resistance to corrosion
High thermal shock resistance
9. 2)Ni-Cr-Mo
High resistance to corrosion
High strength
3)Ni-Cr-Co
High strength
4)Ni-Cr-Co-Mo
High temperature strength and corrosion
resistance.
10. Cobalt base alloys
Very high red hardness
High corrosion and wear resistance
Expensive
Cobalt is alloyed with CR, Ni, W & Mo
They are used in cutting tool making,
turbine blades, jet engines and
afterburners.
11. Refractory metals and
alloys
They can withstand very high temperatures.
High wear and corrosion resistance
Very low coefficient of thermal expansion
Due to cost and availability reasons, alloying
elements are used selectively and in smaller
proportions
Refractory ceramics are used in furnaces,
crucibles, molten metal carrying vessels.
12. Refractory materials can be grouped as:
a) Acid Refractories- made of silica,
aluminium silica,
alumina,etc
b) Basic Refractories- made of magnesia,
bauxite,dolomite,etc
c) Neutral Refractories: made of chromite,
graphite,etc
13. Important Refractory Materials &
Applications
Material Composition Working Temp. Applications
Graphite Carbon 3000 Heating Rods
Thoria ThO2 2750 Jet Nozzles
Magnesia MgO 2000 Basic steel
making
Alumina Al2O3 1860 Thermocouple
Quartz SiO2 1700 Alloy steel making
Fireclay 40-60% Al2O3
60-40% SiO2
1300 Furnace lining
14. Ceramics and metal ceramics
Ceramic is a compound formed by
combination of inorganic and non metallic
materials.
It is derived from Greek word Keramos
meaning burnt potter’s clay or earth.
Ceramics are hard and brittle materials.
15. They have high abrasion resistance, heat
resistance and can withstand high compressive
stresses.
Ceramics are mostly crystalline in structure but
due to different chemical compositions their
structure becomes more complex.
Non metal ceramics have poor thermal and
mechanical shock absorbing resistance.