Lecture
This lecture covers the concept of microstructures in metals, focusing on grains, eutectoid and non-eutectoid steel, and the effects of cooling speed on microstructure formation. It also discusses the transformation of austenite, the TTT diagram, and the influence of thermal history on final properties. Additionally, it explores the variations in steel properties by altering composition, cooling speed, and mechanical processes. The lecture delves into heat treatments, welding techniques, and the impact of solidification processes on material properties.