ML3304 HEAT TREATMENT OF METALS AND ALLOYS SYLLABUS | ANNA UNIVERSITY BE MATERIALS SCIENCE AND ENGINEERING 5TH SEMESTER SYLLABUS REGULATION 2008 2011 2012-2013 BELOW IS THE ANNA UNIVERSITY FIFTH SEMESTER BE MATERIALS SCIENCE AND ENGINEERING DEPARTMENT SYLLABUS, TEXTBOOKS, REFERENCE BOOKS, IT IS APPLICABLE FOR ALL STUDENTS ADMITTED IN THE YEAR 2011 2012-2013 (ANNA UNIVERSITY CHENNAI,TRICHY,MADURAI,TIRUNELVELI,COIMBATORE), 2008 REGULATION OF ANNA UNIVERSITY CHENNAI AND STUDENTS ADMITTED IN ANNA UNIVERSITY CHENNAI DURING 2009
ML3304 HEAT TREATMENT OF METALS AND ALLOYS LT P C
3 0 0 3
OBJECTIVE
This laboratory is elaborating on the multitude of heat treatment techniques, mainly
applicable to iron, steel. It gives a comprehensive understanding of the changes in
microstructure and property created by controlled heat treatment.
UNIT I TRANSFORMATIONS IN STEELS 8
Iron - carbon equilibrium diagram: Transformations on heating and cooling, influence of
alloying elements, general principles of heat treatment of steels, isothermal and
continuous cooling transformations in steels. Continuous cooling curves TTT and CCT
diagrams. mechanism of pearlitic, bainitic and martensitic transformations.
UNIT II HEAT TREATMENT PROCESSES 10
Annealing, Normalizing, Hardening - retained austenite - measurement and methods of
its elimination, hardenability studies- Jominy end quench test, Grossman's experiments
Tempering- Hollomon & Jaffe tempering correlations, Austempering and Martempering,
Precipitation hardening, thermomechanical treatment, intercritical heat treatment, other
heat treatment processes - splat cooling.
UNIT III CASE HARDENING 8
Introduction, carburising: principle, carbon potential, mechanism, application of Fick’s
law, depth of carburization and its control, methods of carburising, heat treatment after
carburising, structure, properties and common problems in carburising. Nitriding:
introduction, steels used, mechanism, effect of microstructure, white layer, nitriding
methods, ion nitriding and nitro-carburising. Induction and flame hardening: principle,
methods, operating variables. Measurement of case depth.
UNIT IV HEAT TREATMENT EQUIPMENT 8
Various heating media used for heat treatment. Temperature and atmosphere control,
carburising atmosphere and carbon potential measurement, nitriding gas atmospheres.
Quenching media and their characteristics. Various heat treatment furnaces, fluidized
bed furnaces, cryo chamber, cryo treatment of steels, sealed quenched furnace, plasma
equipment.
UNIT V HEAT TREATMENT OF SPECIFIC ALLOYS 11
Heat treatment of carbon steels, various types of tool steels, high speed steels,
maraging steels and die steels. Heat treatment of gray cast irons, white cast irons,
malleabilising and S.G.irons, austempering of S.G.Iron. Heat treatment of aluminium
alloys. copper alloys and nickel alloys. Defects in heat treated parts: causes and
remedies.
TOTAL : 45 PERIODS
TEXT BOOKS
41
1. Rajan.T. V., Sharma C.P., Ashok Sharma., “Heat Treatment Principles And
Techniques” Prentice-Hall of India Pvt. Ltd., New Delhi, 2002
2. Vijendra Singh, “Heat Treatment of Metals”, First edition, Standard Publishers
Distributors New Delhi, 1998.
REFERENCES
1. American Society for Metals, “Metals Handbook Vol.4”, ASM Metals Parks. Ohio,
USA, 1991
2. Prabhudev. K H. “Handbook of Heat Treatment of Steels”, Tata McGraw-Hill
Publishing Co., New Delhi, 1988.
3. Novikov,.I., “Theory of Heat Treatment of Metals”, MIR Publishers, Moscow, 1978
4. Thelning K.E., “Steel and its heat treatment”, Bofors Handbook, 1975.
ML3304 HEAT TREATMENT OF METALS AND ALLOYS LT P C
3 0 0 3
OBJECTIVE
This laboratory is elaborating on the multitude of heat treatment techniques, mainly
applicable to iron, steel. It gives a comprehensive understanding of the changes in
microstructure and property created by controlled heat treatment.
UNIT I TRANSFORMATIONS IN STEELS 8
Iron - carbon equilibrium diagram: Transformations on heating and cooling, influence of
alloying elements, general principles of heat treatment of steels, isothermal and
continuous cooling transformations in steels. Continuous cooling curves TTT and CCT
diagrams. mechanism of pearlitic, bainitic and martensitic transformations.
UNIT II HEAT TREATMENT PROCESSES 10
Annealing, Normalizing, Hardening - retained austenite - measurement and methods of
its elimination, hardenability studies- Jominy end quench test, Grossman's experiments
Tempering- Hollomon & Jaffe tempering correlations, Austempering and Martempering,
Precipitation hardening, thermomechanical treatment, intercritical heat treatment, other
heat treatment processes - splat cooling.
UNIT III CASE HARDENING 8
Introduction, carburising: principle, carbon potential, mechanism, application of Fick’s
law, depth of carburization and its control, methods of carburising, heat treatment after
carburising, structure, properties and common problems in carburising. Nitriding:
introduction, steels used, mechanism, effect of microstructure, white layer, nitriding
methods, ion nitriding and nitro-carburising. Induction and flame hardening: principle,
methods, operating variables. Measurement of case depth.
UNIT IV HEAT TREATMENT EQUIPMENT 8
Various heating media used for heat treatment. Temperature and atmosphere control,
carburising atmosphere and carbon potential measurement, nitriding gas atmospheres.
Quenching media and their characteristics. Various heat treatment furnaces, fluidized
bed furnaces, cryo chamber, cryo treatment of steels, sealed quenched furnace, plasma
equipment.
UNIT V HEAT TREATMENT OF SPECIFIC ALLOYS 11
Heat treatment of carbon steels, various types of tool steels, high speed steels,
maraging steels and die steels. Heat treatment of gray cast irons, white cast irons,
malleabilising and S.G.irons, austempering of S.G.Iron. Heat treatment of aluminium
alloys. copper alloys and nickel alloys. Defects in heat treated parts: causes and
remedies.
TOTAL : 45 PERIODS
TEXT BOOKS
41
1. Rajan.T. V., Sharma C.P., Ashok Sharma., “Heat Treatment Principles And
Techniques” Prentice-Hall of India Pvt. Ltd., New Delhi, 2002
2. Vijendra Singh, “Heat Treatment of Metals”, First edition, Standard Publishers
Distributors New Delhi, 1998.
REFERENCES
1. American Society for Metals, “Metals Handbook Vol.4”, ASM Metals Parks. Ohio,
USA, 1991
2. Prabhudev. K H. “Handbook of Heat Treatment of Steels”, Tata McGraw-Hill
Publishing Co., New Delhi, 1988.
3. Novikov,.I., “Theory of Heat Treatment of Metals”, MIR Publishers, Moscow, 1978
4. Thelning K.E., “Steel and its heat treatment”, Bofors Handbook, 1975.
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