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AGING

Aluminum Alloys

The strength of many wrought and cast aluminum alloys can be increased by aging by solution and various tempering processes. Depending on the alloy and cross-sections, different cooling methods can be used to reduce warping during the solution treatment.

Artificial aging is done between 93°C and 245°C in order to perform T6 and T7X Tempering (Blueing) processes. After the rapid quenching step immediately after solution curing, all alloys have a relatively soft structure, which can be partially shaped and straightened if worked within a few hours. These alloys are hardened by natural aging at ambient temperature, in which hardness levels gradually increase, while they also undergo quenching.

Stainless steel

Improving the properties of precipitation hardening stainless steels is possible by determining the correct heat treatment parameters. Solution-curing alone or in combination with subsequent precipitation-age-hardening is frequently used in precipitation-hardening stainless steels.