A low-carbon steel alloy was loaded in tension until just after yielding took place. A few Luders bands were visible on the surface. The bar can either be reloaded (a) immediately, (b) after a brief and moderate temperature aging treatment, or (c) after several weeks without any exposure to elevated temperature. In each of the three cases, how is the yield strength of the reloaded bar likely to compare to that of the original test?

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Thermal Properties of Materials

In mechanical engineering, the thermal property is represented as the physical quantity that is relevant to the application of heat. The thermal properties are evaluated by variations in any specific material due to low heat or high heat. The quantities that influence the thermal property of the materials are mass, density, temperature, and many others.