YIELD STRENGTH. The stress at which a material exhibits a specified deviation from proportionality of stress and strain. An offset of 0.2% is used for many metals. Compare with tensile strength.
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THERMAL SHOCK. The development of a steep temperature gradient and accompanying high stresses within a structure.
SECONDARY HARDNESS. The higher hardness developed by certain alloy steels when they are cooled from a tempering operation. This should always be followed […]
ACID EMBRITTLEMENT. A form of hydrogen embrittlement that may be induced in some metals by acid treatment.
SLACK QUENCHING. The incomplete hardening of steel due to quenching from the austenitizing temperature at a rate slower than the critical cooling rate […]