1. In terms of heat treatment and the development of microstructure, what are two major limitations of the iron–iron carbide phase diagram? 2. (a) Briefly describe the phenomena of superheating and...

1. In terms of heat treatment and the development of microstructure, what are two major limitations of the iron–iron carbide phase diagram? 2. (a) Briefly describe the phenomena of superheating and supercooling. (b) Why do these phenomena occur? 3. Briefly cite the differences among pearlite, bainite, and spheroidite relative to microstructure and mechanical properties.