摘要
采用慢应变速率试验,辅以扫描电镜、金相观察等分析测试技术,研究了钛合金TC4在甲醇、盐酸-甲醇溶液中的应力腐蚀敏感性。试验结果表明,TC4钛合金在甲醇中具有应力腐蚀敏感性。甲醇中加入盐酸,明显地提高了TC4的应力腐蚀敏感性。TC4钛合金在盐酸-甲醇溶液中的应力腐蚀裂纹源自点蚀孔底部。
Stress corrosion crack (SCC) susceptibility of titanium alloy TC4 in methane and hydrochloric acid-methane solution was studied by slow strain rate tensile test (SSRT), SEM analysis and metallography observation. The experimental results show that TC4 is possessed of SCC susceptibility in methanol solution, and addition of methanol solution to hydrochloric acid-methanol solution can greatly improved the SCC susceptibility of TC4 alloy. SCC of TC4 in hydrochloric acid-mdethanol solution originates from the bottom of the corrosion pits.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2003年第6期436-439,共4页
Rare Metal Materials and Engineering
关键词
钛合金
应力腐蚀
甲醇溶液
点蚀
titanium alloy
stress corrosion
methanol solution
pitting corrosion
