precipitation hardening
Quick Summary
Precipitation hardening is an industrial process used to strengthen alloys. It involves heating an alloy to a high temperature to dissolve solute-rich precipitates. The metal is then rapidly cooled, often by quenching, to prevent immediate reprecipitation. This creates a state of supersaturation, where the concentration of dissolved solute exceeds the equilibrium level.1
The alloy can be further strengthened by aging at an elevated temperature, which allows a very fine precipitate to form throughout the material. This fine precipitate acts as a barrier to slip, significantly increasing the alloy's hardness and strength. Precipitation hardening is crucial for producing most high-strength alloys used in various applications.12
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metallurgyIncreasing strength…on the same scale as precipitation hardening can be created by plastically deforming the metal at room temperature. This is often done in a cold-working operation such as rolling, forging, or drawing. The deformation occurs through the generation and motion of line defects, called dislocations, on slip planes spaced only…
Read More…on the same scale as precipitation hardening can be created by plastically deforming the metal at room temperature. This is often done in a cold-working operation such as rolling, forging, or drawing. The deformation occurs through the generation and motion of line defects, called dislocations, on slip planes spaced only…
Read More- metallurgyHardening treatments
Precipitation hardening is used to produce most high-strength alloys. In products made of soft, ductile metals such as aluminum or copper, the age-hardened alloy is put into service with the finest precipitate (that is, the highest strength) possible.
Read MorePrecipitation hardening is used to produce most high-strength alloys. In products made of soft, ductile metals such as aluminum or copper, the age-hardened alloy is put into service with the finest precipitate (that is, the highest strength) possible.
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