Effect of Aging Processes on the Anisotropic Mechanical Property of 6061 Aluminum Alloy and the Related Microstructure Evolution
LIU Wei1,2, WU Yuanzhi1,2, DENG Bin1,2, LIU Anmin1,2, LIU Wei2, SUN Qian2, YE Tuo1,2
1 Research Institute of Automobile Parts Technology, Hunan Institute of Technology, Hengyang 421002, China 2 School of Mechanical and Engineering, Hunan Institute of Technology, Hengyang 421002, China
Abstract: The effect of aging on the anisotropic mechanical properties of a commercial 6061 rolling sheet has been investigated by 0°, 45° and 90° uniaxial tensile tests. The mechanical properties of the studied alloy are strongly related to the applied heat treatment state and loading direction, exhibiting visible anisotropy. The T6 treated alloy exhibits the lowest anisotropy as compared with the other treated alloys. In addition,the studied alloys has a strong cube {001} 〈100〉 and a much weaker {001} 〈100〉 components. The artificial aging utilized in present work has little influence on the grain microstructure and texture evolution. The dislocation distributions of T6 and HTA 240 ℃ alloys are denser and more homogeneous as compared with those in other treated alloys, and the visibly higher density of β″ precipitates in T6 alloy is the main reason for the highest strength and the lowest anisotropy.
作者简介: 刘伟,湖南工学院,讲师。2013年6月毕业于湘潭大学,获材料科学与工程专业硕士学位。2015年10月入职湖南工学院任教至今,主要从事铝、镁等轻金属材料高温和低温变形行为、材料微观组织的演变与分析等方面的研究。在Int. J. Solids Struct.、Comput. Mater. Sci.、《材料科学与工程学报》等国内外学术刊物上发表科研论文7篇,其中SCI收录4篇、EI收录1篇。申请专利7项,其中授权4项。 叶拓,湖南工学院,讲师。2016年10月毕业于湖南大学,获得机械工程博士学位。2017年1月入职湖南工学院任教至今,主要从事金属材料高温变形机制、材料塑性成形以及金属材料微观组织表征等方面的研究。在Materials Science and Engineering A、International Journal of Impact Engineering、Vacuum、Metals、《中国有色金属学报》《材料研究学报》《中国机械工程学报》等国内外知名学术刊物上发表相关论文10余篇,其中SCI收录4篇,EI收录6篇。
引用本文:
刘伟, 吴远志, 邓彬, 刘安民, 刘巍, 孙乾, 叶拓. 时效工艺对6061铝合金力学性能各向异性的影响及微观组织研究[J]. 材料导报, 2021, 35(4): 4134-4138.
LIU Wei, WU Yuanzhi, DENG Bin, LIU Anmin, LIU Wei, SUN Qian, YE Tuo. Effect of Aging Processes on the Anisotropic Mechanical Property of 6061 Aluminum Alloy and the Related Microstructure Evolution. Materials Reports, 2021, 35(4): 4134-4138.
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