Characterisation of the Precipitates in Aged Al-4.2Cu-1.5Mg Alloy

Li Wei Quan; Chuan Cai Wang; Ying Ling Wang

doi:10.4028/www.scientific.net/AMR.774-776.621

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 774-776Characterisation of the Precipitates in Aged...

Characterisation of the Precipitates in Aged Al-4.2Cu-1.5Mg Alloy

Abstract:

In this paper it is investigated the ageing dynamics of Al-4.2Cu-1.5Mg alloy aged at 170°C for different time. Vickers hardness and transmission electron microscopy were employed to test the hardness and microstructures of the aged alloy. It was found that there are two peaks in the curve. The first peak is attributed to the cluster hardening and the second peak is ascribed to the contribution of GPB zones.