age hardening


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Related to age hardening: Precipitation hardening, 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 ?
Their topics include thermodynamic calculations for quantifying the phase fraction and element partition in maraging systems and precipitation hardening steels, quantifying phase transformation kinetics and age hardening, over-ageing, precipitation hardening stainless steels, and applying artificial neural networks in the modeling of steel properties.
Nahouji is a researcher who evaluated the effect of nanostructuring on the formation of age hardening precipitate as well as examining the thermal stability of nanostructured Al6061 alloy (produced by mechanical milling) during isothermal treatment and identifying the mechanism governing grains growth.
Maraging steels are a special class of low-carbon ultrahigh-strength steels, which derive their strength not from carbon, but from precipitation of inter-metallic compounds; the term maraging is derived from Martensite + Aging (martensite age hardening) and denotes the age hardening of a low-carbon, iron-nickel lath martensite matrix.