The process involves three primary stages: solution treating, rapid cooling, and aging. The material is first heated to dissolve alloying elements into a uniform solid solution. After cooling, the part is reheated to a lower, controlled temperature for a specified time, allowing precipitates to form within the metal’s microstructure.
Precipitation Hardening
Precipitation hardening, also known as age hardening, is used to significantly increase strength and hardness while maintaining corrosion resistance and dimensional stability. This process is commonly applied to precipitation‑hardening stainless steels and nickel-based alloys. It is an ideal process for applications that require a balance of strength, toughness, and reliability without excessive distortion.
How Precipitation Hardening Works
Benefits of Precipitation Hardening
01
High Strength and Hardness
Achieves exceptional mechanical strength without excessive brittleness.
02
Dimensional Stability
Minimal distortion during processing, making it ideal for tight‑tolerance and precision components.
03
Corrosion Resistance
Maintains corrosion‑resistant properties, especially in precipitation‑hardened stainless steels.
04
Customizable Mechanical Properties
Aging temperature and time can be adjusted to meet exact performance requirements.
05
No Quenching Required During Aging
Reduces thermal shock and the risk of cracking compared to conventional hardening methods.
Applications
Aerospace and defense components
Valve components and fittings
Shafts, fasteners, and structural parts
High‑performance tooling and industrial equipment
