IES - GATE Mechanical concepts

The Page is dediacted to "IES-GATE" Mechanical Engineering Aspirants. A .Freelance initiative to impart "TRUE" Knowledge of Mechanical Engineering .
Fields cover are "Thermodynamics,Mechanics of materials,Fluid Mechanics,Manufacturing Engineering I&II,Industrial Eng.,Applied Thermodynamics-Power Plant and RAC, Heat transfer ,etc

What constitute failure?Lack of particular Properties of material .How certain defects are responsible for plastic behavior , which is an important consideration for Metalworking like Rolling , Forging ,Drawing ,Sheet Metal Forming and of course Machining of Metals .. various strengthening mechanism like strain hardening , Martensite strengthening , etc . Why annealing of cold work is necessary ?.. All these questions can be answered by knowledge of MECHANICAL METALLURGY