Optimization of 6005 Aluminum Alloy Components
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.
Keywords6005 aluminum alloy Composition optimization Heat treatment Microstructure
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).
- 1.Y.J. Wang, H.G. Ding, Development status and prospect of aluminum alloy body manufacturing technology in China. J. Weld. 10, 5–7 (2004)Google Scholar
- 2.S.G. Yao, P. Xu, New materials in the application of high-speed bus railway locomotive vehicles. J. Railway Rolling Stock. 2, 24–26 (2010)Google Scholar
- 3.B.H. Li, S.C. Yan, 6005 selection of chemical composition of aluminum alloy. J. Light Alloy Process. Technol. 29, 29–30 (2001)Google Scholar
- 4.F.S. Pan, Aluminum Alloys and Applications (Chemical Industry Press, Beijing, 2006), pp. 90–93Google Scholar
- 7.M.C. Zhu, Y. Dong, D.D. Ji, Heat treatment technology of aluminum alloy. J. Silicon Valley 21, 7–13 (2011)Google Scholar
- 8.Z.T. Wang, R.Z. Tian, Aluminum Alloys and Their Machining Handbook (Central South University of Technology Press, Changsha, 1988), pp. 9–17Google Scholar
- 9.S.R. Claves, D.L. Elias, W.Z. Misiolek, Analysis of the intermetallic phase transformation occurring during homogenization of 6000 aluminum alloys. J. Mater. Sci. Forum 20, 396–402 (2002)Google Scholar
- 10.Y.L. Liu, S.B. Kang, H.W. Kim, The complex microstructures in an as-cast Al–Mg–Si alloy. J Mater. Lett. 12, 267–272 (2014)Google Scholar
- 12.M.C. Zhu, Y. Dong, Performance studies and organizations of 6005 aluminum alloy aging treatment. J. Hot Working Technol. 9, 7–13 (2012)Google Scholar
- 13.A.R. Anderson, Study on organizational performance of 6005A aluminum alloy. J. AFS Trans. 83, 53–56 (1997)Google Scholar
- 15.A.K. Gupta, D.J. Lloyd, S.A. Court, Precipitation hardening in Al–Mg–Si alloys with and without excess Si. J. Mater. Sci. Eng. A 31, 11–17 (2011)Google Scholar