i

Title of the course

MM 301 :  Phase Transformations  

ii

Credit structure

L          T          P          C

3           1          0           8

iii

Pre-requisite, if any

None

iv

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.

v

Texts/References

D.A. Porter and K.E. Easterling, Phase Transformations in Metals and Alloys, 2^nd 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, 3^rd Ed., Elsevier/ Butterworth-Heinemann, Oxford, 2006.

vi

Instructor(s) name

Prof. N.Prabhu