Glossary of Metallurgical Terms

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Quench Aging Aging induced by rapid cooling after solution heat treatment.
Quench Annealing Annealing an austenitic ferrous alloy by solution heat treatment followed by rapid quenching.
Quenching Rapid cooling from a high temperature by immersion in a liquid bath of oil or water. Molten salts may also be used.
Quench Cracking Fracture of a metal during quenching from elevated temperature. Most frequently observed in hardened carbon steel, alloy steel, or tool steel parts of high hardness and low toughness. Cracks often emanate from fillets, holes, corners, or other stress raisers and result from high stresses due to the volume changes accompanying transformation to martensite.
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