Chapter Objectives

1. Describe equilibrium, phase, and degrees of freedom for a materials system.
2. Describe the application of Gibbs rule in a material system.
3. Describe cooling curves and phase diagrams and the type of information that may be extracted from them.
4. Describe a binary isomorphous phase diagram and be able to draw a generic diagram showing all phase regions and relevant information.
5. Be able to apply tie line and lever rule to phase diagrams in order to determine the phase composition and phase fraction in a mixture.
6. Describe nonequilibrium solidification of metals and explain the general differences in microstructure when compared to equilibrium solidification.
7. Describe a binary eutectic phase diagram and be able to draw a generic diagram showing all phase regions and relevant information.
8. Describe the microstructure evolution during equilibrium cooling as metal solidifies at various regions of the phase diagram.
9. Define various invariant reactions.
10. Define intermediate phase compounds and intermetallics.
11. Describe ternary phase diagrams.