Course Details
Subject {L-T-P / C} : MM6112 : Phase Transformation { 3-0-0 / 3}
Subject Nature : Theory
Coordinator : Prof. Debasis Chaira
Syllabus
Phase rule and phase diagram, Allotropy of Iron and Fe-C Phase diagram, Nucleation and growth kinetics, Atomic models of Diffusion, Steel, Functions of alloying elements in steel, Importance of Austenite Grain size.
Formation of Austenite, TTT and CCT Diagrams, Pearlitic, Bainitic and Martensitic Transformations (Mechanisms, Kinetics and Morphologies).
Pearlitic transformation, Factors influencing pearlitic transformation, Mechanism of transformation, Nucleation and growth, Orientation relationship.
Bainitic transformation: Mechanism of transformation, Nucleation and growth, Orientation relationships, Surface relief, Classical and non-classical morphology, Effect of alloying elements.
Martensitic transformation: Characteristics of transformation, Thermodynamics and kinetics, Nucleation and growth, Morphology, Crystallography, Stabilization.
Heat treatment of steels: annealing, normalizing, hardening, tempering, austempering, patenting, industrial practices
Strengthening mechanisms, Recovery, Recrystallization and Grain growth
Course Objectives
- Understanding the thermodynamic and kinetics for phase transformations
- Understanding of homogeneous and heterogeneous nucleation as well as growth processes leading to a particular microstructure
- Understanding of different types of solid state phase transformations
- Study of different heat treatment cycles and their obtained property
Course Outcomes
CO1: Characteristics of different phase transformation and how these characteristics can be controlled to design the desired microstructure <br /> <br />CO2: To have knowledge about heat treatment processes and correlation of microstructure, strength and hardness <br />CO3: To learn various phase transformation in steel, the evolution of microstructures and their correlation <br />CO4: To learn nucleation and growth processes and how these processes are involved in various solid-state phase transformations <br />CO5: To have knowledge of diffusion related to various metallurgical processes <br />CO6: To have an idea of various strengthening mechanisms
Essential Reading
- R. E. Reed-Hill, Physical Metallurgy Principles, East-West Press
- V. Raghavan, Solid State Phase Transformations, PHI
Supplementary Reading
- Vijendra Singh, Physical Metallurgy, Standard Publisher
- D. A. Porter and K E Easterling, Phase Transformations in Metals and Alloys, CRC Press
Journal and Conferences
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