Thermodynamics and Phase Transformations in Materials

a
Course
Postgraduate
Semester
Electives
Subject Code
AE790
Subject Title
Thermodynamics and Phase Transformations in Materials

Syllabus

Thermodynamics basic concepts - the first law, (the enthalpy concept, heat capacity), the second law (reversible and irreversible processes, entropy, Gibbs energy, chemical potential, driving force), the third law, Clausius-Clapeyrons equations. Basics of Phase diagrams: Gibbs free energy – composition diagrams, Gibbs phase rule. Ideal and regular solutions, Diffusion: steady vs non-steady states, driving force and mechanisms Interfaces: solid-vapour, grain and phase boundaries. Nucleation (homogeneous and heterogeneous), growth, Eutectic solidification

Solid state transformations: Recovery, recrystallization and grain growth. Eutectoid transformations, Order-disorder transformations, spinodal, and massive transformations. Transformations in steels and aerospace alloys

Text Books

  • Porter, D.A., Easterling, K. E., and Sherif, M.Y., Phase Transformation in Metals and Alloys, 3rd edition, CRC Press (2009).

References

  1. David R. Gaskell and David E. Laughlin, Introduction to the Thermodynamics of Materials, 6th ed., CRC Press, (2017).
  2. Raghavan, V., Solid State Phase Transformations, 1st edition, Prentice Hall India (1987).
  3. Abbaschian, R., Abbaschian, L., and Reed-Hill, R. E., Physical Metallurgy Principles, 4th edition, Cengate Learning (2009).
  4. Ghosh, Ahindra, Textbook of Materials and Metallurgical Thermodynamics, PHI (2002).
  5. Darken L.S., Physical chemistry of metals, CBS publishers (2002).
  6. Robert Dehoff, Thermodynamics in materials science, 2nd ed. CRC press (2006).

Course Outcomes (COs):
CO1: To analyse the variation of properties associated with the microstructural evolution during phase transformations

CO2: To understand the rudiments of phase transformations through thermodynamics of materials for modelling of materials and alloy design

CO3: To understand the concepts on phase stability and to explore the use of phase diagram for understanding various types of phase transformations that are relevant to metals and alloys