Title of the course

MM 301 :  Phase Transformations  



Credit structure

L          T          P          C

3           1          0           8



Pre-requisite, if any




Course content

Basics of Phase diagrams: Gibbs free energy – composition diagrams, Gibbs-Thompson effect, introduction to ternary phase diagrams. Diffusion: steady vs non-steady states, driving force and mechanisms, Fick’s first and second laws. Interstitial and substitutional diffusion, high diffusivity paths. Interfaces: solid-vapour, grain and phase boundaries, ledge growth, glissile interface, rate controlling step. Nucleation, growth, Johnson-Mehl-Avrami analysis, age hardening, coarsening. Recovery, recrystallization and grain growth. Order-disorder, spinodal, cellular eutectoid and massive transformations. Martensite (phenomenological theory), Bainite, acicular ferrite.




D.A. Porter and K.E. Easterling, Phase Transformations in Metals and Alloys, 2nd Ed., Chapman and Hall, London, 1992.


A.K. Jena and M.C. Chaturvedi, Phase Transformations in Materials, Prentice Hall:Englewood Cliffs, 1992.


H.K.D.H. Bhadeshia and R. Honeycombe, Steels: Microstructure and Properties, 3rd Ed., Elsevier/ Butterworth-Heinemann, Oxford, 2006.



Instructor(s) name

Prof. N.Prabhu



L – Lecture, T – Tutorial, P – Practical, C - Credit