Strain hardening, strain rate, the temperature of the metal and hydrostatic pressure will affect the value of yield strength. Yield strength is measured in N/m²or pascals. This means the stress beyond yield strength, the deformation is recoverable and any deformation that occurs due to the stress higher than the yield strength is permanent. When subjected to stress, a material undergoes deformation, yield strength describes the maximum amount of stress required to elastically deform the material in a given loading arrangement like tension and compression. The yield strength is defined as the stress at which a predetermined amount of permanent deformation occurs.
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