理化检验-物理分册2024，Vol.60Issue(3)：16-19,22,5.DOI:10.11973/lhjy-wl202403004
不同温度下6082铝合金的抗应力腐蚀性能
Stress corrosion resistance of 6082 aluminum alloy at different temperatures
王建军 1罗先甫 2刘煜 2王佳 2孙绪鲁 2查小琴3
作者信息
- 1. 中车青岛四方机车车辆股份有限公司, 青岛 266031
- 2. 中国船舶集团有限公司第七二五研究所, 洛阳 471023
- 3. 中国船舶集团有限公司第七二五研究所, 洛阳 471023||河南省船舶及海工装备结构材料技术与应用重点实验室, 洛阳 471023
- 折叠
摘要
Abstract
The slow strain rate tensile test method was used to study the stress corrosion resistance of 6082 aluminum alloy sheet at different temperatures.The microstructure was observed using optical microscopy and transmission electron microscopy,and the fracture surface was analyzed using scanning electron microscopy.The results show that the stress corrosion sensitivity index of 6082 aluminum alloy sheet was 6.6%in a 3.5%(volume fraction)NaCl solution at 70℃,and 2.3%in a 3.5%(volume fraction)NaCl solution at 50℃.The fracture surfaces of the samples showed no stress corrosion characteristics,and dispersed small Mg2Si phases were precipitated within the alloy grains,while discontinuous Mg2Si phases were precipitated at the grain boundaries,which could not form continuous intergranular corrosion channels.The samples exhibited good stress corrosion resistance.The increased in temperature led to a significant decrease in the tensile strength of the sample in the corrosive solution,resulting in a higher stress corrosion sensitivity index of the sample at 70℃.关键词
6082铝合金/慢应变速率拉伸试验/应力腐蚀敏感性指数/钝化膜Key words
6082 aluminum alloy/slow strain rate tensile test/stress corrosion sensitivity index/passive film分类
通用工业技术引用本文复制引用
王建军,罗先甫,刘煜,王佳,孙绪鲁,查小琴..不同温度下6082铝合金的抗应力腐蚀性能[J].理化检验-物理分册,2024,60(3):16-19,22,5.
