Diffusion in Alloys: General Metals & Solute

This lecture covers the topic of diffusion in alloys, focusing on general metals and solutes. It discusses empirical correlations for different types of diffusion, such as autodiffusion and solute diffusion. The lecture also explores the mechanisms of interstitial and vacancy diffusion, as well as the impact of atom size on activation energy. Additionally, it delves into the diffusion of electrolytes in liquids and the diffusion of elements like carbon, nitrogen, and oxygen in metals. The lecture concludes with a detailed examination of diffusion in various alloy systems, including dilute alloys, binary alloys, and phase separation.