Phase Diagrams: a Detailed Study Part of MATERIALS SCIENCE

Phase Diagrams: a Detailed Study Part of MATERIALS SCIENCE & AALearner’s Learner’sGuide Guide ENGINEERING AN INTRODUCTORY E-BOOK Anandh Subramaniam & Kantesh Balani Materials Science and Engineering (MSE) Indian Institute of Technology, Kanpur- 208016 Email: [email protected], URL: home.iitk.ac.in/ anandh http://home.iitk.ac.in/ anandh/E-book.htm Advanced Reading Alloy Phase Equilibria A. Prince Elsevier Publishing Company, Amsterdam (1966) Collection of Phase Diagrams http://www.crct.polymtl.ca/fact/documentation/SGTE/SGTE Figs.htm

Illustrative Examples of Phase Diagrams In the mail chapter on phase diagrams some basics of phase diagrams were considered. In this sub-chapter we consider: a detailed treatment of phase diagrams and an illustrative set of phase diagrams (i.e. examples of various types of phase diagrams).

Getting Phase diagrams from Gibbs free energy versus composition plots By drawing G vs Xi (composition) plots for various temperatures we can obtain T vs X i phase diagrams.

Getting the Eutectic Phase diagram from Gibbs free energy versus composition plot By drawing

Gibbs free energy vs composition plot at various temperatures: Isomorphous system

Gibbs free energy vs composition plot at various temperatures: Eutectic system

Gibbs free energy vs composition plot at various temperatures: Peritectic system