Mechanical Properties & Strengthening Mechanisms

This lecture covers mechanical properties and strengthening mechanisms of alloys, focusing on topics such as stress-strain curves, plastic deformation, dislocations, slip systems, and various strengthening mechanisms like dislocation hardening, solid solution strengthening, grain boundary strengthening, particle strengthening, and grain orientation strengthening. It also discusses the additive effect of these mechanisms, cyclic deformation, fatigue, high temperature plasticity, creep, and time-dependent plasticity. The presentation delves into the deformation mechanisms at different temperatures and stresses, emphasizing the importance of understanding these concepts in materials science and engineering.