age hardening

(redirected from age-hardened)
Also found in: Dictionary, Medical.
Related to age-hardened: Surface hardening

age hardening

[‚āj ′härd·ən·iŋ]
(metallurgy)
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.

age hardening

An aging process in certain metals, at room temperature, which results in increased strength and hardness.
References in periodicals archive ?
In order to raise the strength and conductivity of the alloy, annealed beryllium copper must be age-hardened (heat-treated) before service.
Cast molds that have been age-hardened without the separate anneal tend to have lower wear resistance.
This complex steel is described by Humberto Raposo, the inventor, as a "premium melted, martensitic, age-hardened alloy, capable of 260 ksi ultimate tensile strength when peak aged.