Metal Alloys: Hardening Mechanisms

This lecture covers the different modes of hardening metal alloys, including solid solution hardening, work hardening, and precipitation hardening. It explains how dislocations and defects in crystals contribute to the hardening process, as well as the effects of grain size and composition on the mechanical properties of alloys. The instructor discusses the challenges of industrial practices related to work hardening and the annealing process. Various examples of alloy hardening mechanisms are presented, along with their typical uses in different applications. The lecture concludes with a detailed explanation of the relationship between grain size, yield strength, and ductility in steel alloys.