National Institute of Technology Rourkela

राष्ट्रीय प्रौद्योगिकी संस्थान, राउरकेला

ଜାତୀୟ ପ୍ରଯୁକ୍ତି ପ୍ରତିଷ୍ଠାନ ରାଉରକେଲା

An Institute of National Importance

Course Details

Subject {L-T-P / C} : MM6112 : Phase Transformation { 3-0-0 / 3}

Subject Nature : Theory

Coordinator : Anindya Basu

Syllabus

Module 1 :

Alloy and Solid solution, Phase rule and phase diagram, Allotropy of Iron and Fe-C Phase diagram, Atomic models of Diffusion. (8 Hours)

Module 2 :

Basics of phase transformation, Nucleation and growth kinetics, Formation and transformation of austenite, TTT and CCT Diagrams, Functions of alloying elements in steel, Importance of Austenite Grain size. (8 Hours)

Module 3 :

Pearlitic transformation: Factors influencing pearlitic transformation, Mechanism of transformation, Nucleation and growth, Related heat treatment; Ferrtic transformation (6 Hours)

Module 4 :

Bainitic transformation: Types of Bainites, Mechanism of transformation, Related heat treatment (2 Hours)

Module 5 :

Martensitic transformation: Characteristics of transformation, Mechanism, Stabilization, Related heat treatment (5 Hours)

Module 6 :

Other heat treatment processes and related mechanism: Tempering, Ageing (4 Hours)

Module 7 :

Strengthening mechanisms, Recovery, Recrystallization and Grain growth. (2 Hours)

Course Objective

1 .

To follow the thermodynamics and kinetics of phase transformations.

2 .

To understand the principle of austenitizations and the implication of different parameters on kinetics.

3 .

Understand various mechanisms of pearlitic, Baintitic, and martensitic Transformations in the Fe-C system.

4 .

To understand age-hardening and recrystallization processes.

Course Outcome

1 .

Understanding phase diagrams and the atomic model of diffusion

2 .

Understand the types of phase transformation, nucleation & growth mechanism and TTT/CCT diagrams related to steel

3 .

Analyse the prealitic transmortion and related heat treatment processes

4 .

Understand the bainitic and martensitic transformation of steels and related heat treatment

5 .

Learn the basics of the age hardening process and mechanism

6 .

Illustrate recovery, recrystallisation and grain growth

Essential Reading

1 .

R. E. Reed-Hill, Physical Metallurgy Principles, East-West Press

2 .

V. Raghavan, Solid State Phase Transformations, PHI

Supplementary Reading

1 .

Vijendra Singh, Physical Metallurgy, Standard Publisher

2 .

D. A. Porter and K E Easterling, Phase Transformations in Metals and Alloys, CRC Press

Journal and Conferences

1 .