摘要
用电化学极化测试技术、慢应变速率拉伸试验研究了管道钢 (16Mn钢 )在近中性 pH值溶液中的应力腐蚀行为 ,并探讨了外加电位、CO2 、温度等因素的影响 .结果表明 ,应力腐蚀开裂为氢脆型应力腐蚀开裂 ;随着阴极电位的增加SCC敏感性增大 ,溶液中加入CO2
The stress corrosion cracking (SCC) behavior of pipeline steel (16Mn) in different solutions with near neutral pH values was studied with slow strain rate testing and electrochemical polarization technique.The effect of applied potential, CO 2 content and temperature on SCC behavior were investigated.The results showed that the crack development was mainly controlled by hydrogen-embrittlment stress corrosion cracking.Susceptibility to SCC increased as the cathodic potential increased.The addition of CO 2 to the solution also increased veidently the SCC.
出处
《腐蚀科学与防护技术》
CAS
CSCD
北大核心
2001年第2期71-73,共3页
Corrosion Science and Protection Technology
基金
国家重点基础研究专项经费资助! (G19990 65 0 )
