Optimization of 6005 Aluminum Alloy Components

摘要

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, Mg_2Si, 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% LACS, respectively, after solid solution, air-cooling and 175°C × 8 h aging.