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Related to age hardening: Precipitation hardening, Surface hardening
age hardening[‚āj ′härd·ən·iŋ]
Increasing the hardness of an alloy by a relatively low-temperature heat treatment that causes precipitation of components or phases of the alloy from the supersaturated solid solution. Also known as precipitation hardening.
An aging process in certain metals, at room temperature, which results in increased strength and hardness.