Phase Diagrams

Course Name: 

Phase Diagrams (MT252)


B.Tech (MME)




Programme Core (PC)

Credits (L-T-P): 

(3-1-0) 4

Course Outcomes: 

CO1: To understand the microstructure of a given alloy under a given set of conditions
CO2: Correlation between microstructures and properties
CO3: Ability to use the concepts in subjects like heat treatment, phase transformations, etc.

Course modules and teaching hours: 

Module 1: (18 hours) Introduction: Types of solid solutions, Hume Rothery rules, Intermediate phases, Problems; Binary isomorphous system, phase rule and lever rule, Freezing behavior, coring, homogenization, examples, problems, thermal analysis; Miscibility gap, role of temperature; Eutectic systems, freezing, examples, problems, modifications, effect of cooling rate. Hypo and hypereutectics; Phase diagrams with intermediate compounds, line compounds, examples; Monotectics, examples, freezing, problems; Syntactic systems, freezing, examples, problems; Eutectoid systems, problems, effect of cooling rate, examples, hypo and hypereutectoids; Peritectic systems, examples, problems, equilibrium and realistic freezing, problems; Binary systems with multiple invariant points

Module 2: (24 hours) Ternary phase diagrams, isothermal sections and isopleths, ternary systems involving binary reactions, ternary reactions, experimental techniques of phase diagram determination, problems and examples

Module 3: (6 hours) Fe-Fe3C phase diagram, introduction to steels and cast irons, other commercially important binary systems


F. N. Rhines, Phase Diagrams in Metallurgy, McGraw Hill, N.Y.1956
A. Prince, Alloy Phase Equilibria, Elsevier, Amsterdam, 1966
D. R. F West, Ternay equilibrium diagrams, 2nd Edn., Chapman and Hall, London, 1982
Shant P Gupta, Phase equilibria in materials, McGraw Hill publ, 2003
S H Avner, Introduction to Physical Metallurgy, McGraw Hill Book Co., NY, 1997
ASM Handbook on Alloy Phase diagrams, v3, 2016 ed


Metallurgical and Materials Engineering

Total teaching hours: 


Contact us

Prof. K. Narayan Prabhu, Head
Department of MME, NITK, Surathkal
P. O. Srinivasnagar, Mangaluru - 575 025
Karnataka, India.
  • Hot line: +91-0824-2473050