The effect of homogenizing on the quench sensitivity of 6082

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Description/Abstract

Hardness data for cast, homogenised, solutionised and subsequently peak aged 6082 samples that had undergone a range of homogenizing and quenching treatments can be modelled well using a recently derived model. Hardness increases with homogenizing temperature and time for all quenched conditions. In contrast with extruded 6082 alloys, the homogenizing condition has little effect on quench sensitivity, even though the density of dispersoids, which act as nucleation sites for non-hardening precipitates, decreases markedly on increasing homogenizing temperature.