摘要
综述了管线钢在不同环境下应力腐蚀开裂(SCC)行为与机理的研究现状。介绍了高pH-SCC的保护膜破裂-裂尖阳极溶解机理;重点分析了近中性pH-SCC的阳极溶解(AD),氢脆机制(HE),AD与HE混合机制等3种开裂机理;强调了AD与HE混合机制在近中性pH-SCC的重要作用。
The behavior and mechanism of stress corrosion cracking （SCC） under different environments was summarized. The mechanism of the break of protective layer and anode dissolving of crack tip was introduced. The three kinds near neural pH-SCC mechanism of anode dissolving （AD）, hydrogen embrittlement （HE）, and the combination of AD and HE were analyzed. The important action of the combined mechanism of AD and HE in near neural pH-SCC was emphasized.
出处
《装备环境工程》
CAS
2007年第6期1-6,共6页
Equipment Environmental Engineering
基金
国家自然科学基金重大项目(50499333)
国家科技基础条件平台建设项目(2005DKA10400)
关键词
管线钢
应力腐蚀开裂
机理
研究现状
pipeline Steel
stress corrosion cracking
mechanism
progress
