Optimization of 6005 Aluminum Alloy Components
Abstract
By comparing nine groups of experiments, the influences of Mg, Si, Cu and Mn on the strength, plasticity and conductivity of 6005 alloy were researched. The results show that α-Al, Mg2Si, Si and β-AlFeSi are mainly present in the as-cast microstructure of 6005 aluminum alloy. The strength, plasticity and electrical conductivity of the 6005 aluminum alloy of 9 groups were compared and then select a good overall performance of an alloy composition, which is Al–0.53Mg–0.72Si–0.2Cu–0.28Mn–0.18Cr–0.05Ti (wt%). The tensile strength, yield strength, elongation, hardness and electrical conductivity of the extruded alloy are 310.9, 280.1 MPa, 11.95%, 102.3 HV and 47.2% IACS, respectively, after solid solution, air-cooling and 175 °C × 8 h aging.
Keywords
6005 aluminum alloy Composition optimization Heat treatment MicrostructureNotes
Acknowledgements
This work was supported by the Liaoning Provincial Natural Science Foundation of China (2015021002), Hi-Tech Research and Development Program of China (2013AA032402), the Fundamental Research Funds for the Central Universities (N150904001 and N160913001), the National Natural Science Foundation of China (51574075 and U1608252), the National Key Research and Development Program of China (2016YFB0300901) and the China Postdoctoral Science Foundation (2015M570250).
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