Influence of ageing on yield stress anisotropy of extruded 7075 aluminum alloy bar at ambient temperature

摘要：

　　Uniaxial tensile tests of extruded 7075 aluminum alloy bar were carried out on the universal test machine at strain rate of 0.001 s-1.The tensile direction are aligned at 0°, 45°and 90°to the axis direction of the bar.Microstructure and texture was characterized using Optical Microscopy and x ray diffraction analysis.The results show that the yield stress for 0° orientation specimen, which was solution treated, is the highest, while that of 45° orientation is the lowest.The yield stresses are anisotropic for solution treated 7075 extruded bar, which could be attributed to the elongated grain structures and the texture of the bar.The yield stress anisotropic behavior diminished after peak aged.

关键词： 7075 aluminum alloy elongated grain solution aged texture

作者: Zhimin ZHANG Yongbiao YANG Keren Xu

作者单位: College of Materials Science and Engineering,North University of China,Shanxi Province Taiyuan 03005 Capital Aerospace mechanical company

会议类型: 国际会议

会议名称: the 3nd International Conference on Digital Manufacturing & Automation (第三届数字制造与自动化国际会议(ICDMA 2012))

会议地点: 桂林

会议语种:英文

页码: 500-503

在线出版日期: 2012-08-01（万方平台首次上网日期，不代表论文的发表时间）