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Article | REF: M240 V1

Precipitation hardening of aluminum alloys

Authors: Bruno DUBOST, Pierre SAINFORT

Publication date: October 10, 1991

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1. Discovering and developing technology

When maintained at temperatures below 250°C, after being subjected to high temperatures (450°C or more), certain aluminum alloys increase their mechanical strength (figure 1 ). Wilm 's discovery in 1906 of this phenomenon of structural hardening of light alloys by ageing led to the development of the first industrial alloy, Duralumin, in 1916. Since then, precipitation-hardened aluminium alloys (also known as heat-treatable or hardenable alloys) have...

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