摘要
采用周期浸润腐蚀实验结合电化学方法研究了模拟工业大气环境下RE重轨钢的腐蚀行为.结果表明,RE重轨钢的耐腐蚀性能优于不含RE的重轨钢.RE重轨钢中,RE合金元素在基体的局部富集促进了锈层中保护性好的α-FeOOH相的快速生成和含量的增加,提高了锈层阻止侵蚀性介质穿透的能力,改善了重轨钢在工业大气环境下的耐腐蚀性能.
The corrosion behavior of rare earth( RE) heavy rail steel was studied by a cycle infiltration corrosion test and an electrochemical technique under simulated industrial atmosphere. The results show that RE heavy rail steel has more excellent anticorrosive property than the other none-RE heavy rail steel. In RE heavy rail steel,α-FeOOH phase quickly forms and content increase in rust layer due to the enrichment of RE alloy elements in the matrix,RE alloy elements improve the ability of rust layer to prevent erosion of corrosive agent penetration,which improves the corrosion resistance of the heavy rail steel in industrial atmosphere.
出处
《工程科学学报》
EI
CAS
CSCD
北大核心
2014年第S1期72-76,共5页
Chinese Journal of Engineering
基金
包头市科学技术局重大科技发展资助项目(2012Z1006-1)
关键词
RE
重轨钢
腐蚀行为
模拟工业大气环境
RE
heavy rail steel
corrosion behaviors
simulated industrial atmosphere
