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Phase Transformation in Materials

Phase Transformation in Materials. Instructor: Dr. Krishanu Biswas, Department of Materials Science and Engineering, IIT Kanpur. This course will deal with the basics of phase transformation in materials. Using thermodynamics, kinetics of phase transformation, different liquid to solid and solid to solid transformations will be covered in this course. (from nptel.ac.in)

Lecture 41 - Eutectoid Transformation in Steel

This lecture will contain following topics: Pearlite in off-eutectoid Fe-C alloys, Widmanstatten ferrite, Bainite transformation - upper bainite, lower bainite.

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Lecture 01 - Brief Introduction

Lecture 02 - Definition of Phase, Concept of Equilibrium

Lecture 03 - Free Energy, Stability of Phases

Lecture 04 - Gibbs Free Energy of Binary Solution

Lecture 05 - Ideal Solution and Chemical Potential

Lecture 06 - Thermodynamics of Solid Solutions

Lecture 07 - G vs X Curves

Lecture 08 - Solid Solutions: Types

Lecture 09 - Heterogeneous Phase Equilibria

Lecture 10 - G vs X Curves for Eutectic System

Lecture 11 - G-X Plot for Peritectic System

Lecture 12 - Effect of Temperature of Solid Solubility, Influence of Interfaces on Equilibrium

Lecture 13 - Introduction to Diffusion

Lecture 14 - Mechanism of Diffusion, Fick's First Law

Lecture 15 - Fick's Second Law

Lecture 16 - Fick's Second Law (cont.), Diffusion and Temperature

Lecture 17 - Interfacial Free Energy, Solid/Vapor Interface

Lecture 18 - Boundaries in Single Phase Solids

Lecture 19 - High Angle Grain Boundaries, Equilibrium in Polycrystalline Materials

Lecture 20 - Interphase Interfaces in Solids

Lecture 21 - Coincident Site Lattice (CSL) Boundaries

Lecture 22 - Types of Nucleations

Lecture 23 - Homogeneous Nucleation

Lecture 24 - Homogeneous Nucleation (cont.)

Lecture 25 - Heterogeneous Nucleation

Lecture 26 - Heterogeneous Nucleation (cont.)

Lecture 27 - Growth

Lecture 28 - Atomic Mechanism of Growth

Lecture 29 - Dendritic Solidification

Lecture 30 - Growth Rate for Dendrite Formation

Lecture 31 - Alloy Solidification

Lecture 32 - Alloy Solidification (cont.)

Lecture 33 - Eutectic: Solidification

Lecture 34 - Eutectic: Solidification (cont.)

Lecture 35 - Solidification of Casting/ Ingot

Lecture 36 - Precipitation Hardenable Alloy

Lecture 37 - Precipitation Age-Hardening Alloy

Lecture 38 - Age Hardening Alloy

Lecture 39 - Eutectoid Transformation

Lecture 40 - Eutectoid Transformation (cont.)

Lecture 41 - Eutectoid Transformation in Steel

Lecture 42 - Martensite

Lecture 43 - Martensite (cont.)

Lecture 44 - Martensite (cont.), TTT (Time-Temperature-Transformation) Curves

Lecture 45 - TTT Diagram

Lecture 46 - Recovery, Recrystallization and Grain Growth

Lecture 47 - Recovery

Lecture 48 - Recrystallization

Lecture 49 - Recrystallization (cont.)

Lecture 50 - Introduction to Spinodal Decomposition