摘要
采用扫描电镜、X射线衍射仪和电化学测试,分析了XCS-lode钢与30CrNi3Mo钢在模拟工业大气环境中的腐蚀行为。结果表明:在模拟工业大气环境中,XCS-lode钢和30CrNi3Mo钢的腐蚀速率均随着腐蚀时间的延长呈减小的趋势,且XCS-lode钢的腐蚀速率整体比30CrNi3Mo钢的小;30CrNi3Mo钢表面腐蚀产物膜在短时间内无法形成,XCS-lode钢表面腐蚀产物膜可在极短的时间内形成;XCS-lode钢表面腐蚀产物的主要成分为电化学性质稳定的α-FeOOH,30CrNi3Mo钢表面腐蚀产物主要成分为Fe_(3)O_(4);XCS-lode钢的腐蚀产物膜阻抗明显高于30CrNi3Mo钢的,说明XCS-lode钢表面的腐蚀产物膜对钢基体的保护性能优于30CrNi3Mo钢的。
The corrosion behavior of XCS-lode steel and 30CrNi3Mo steel in simulated industrial atmosphere was analyzed by scanning electron microscope,X-ray diffractometer and electrochemical test.The results showed that in simulated industrial atmospheric environment,the corrosion rates of XCS-lode steel and 30CrNi3Mo steel showed a decreasing trend with the prolongation of corrosion time,and the overall corrosion rate of XCS-lode steel was smaller than that of 30CrNi3Mo steel.The corrosion product film on surface of 30CrNi3Mo steel could not be formed in a short time,but the corrosion product film on the surface of XCS-lode steel could be formed in a very short time.The main component of corrosion products on the surface of XCS-lode steel was electrochemically stableα-FeOOH,the main component of corrosion products on the surface of 30CrNi3Mo steel was Fe_(3)O_(4),the corrosion product film impedance of XCS-lode steel was significantly higher than that of 30CrNi3Mo steel,explaining that the protective performance of corrosion product film on the surface of XCS-lode steel to the steel matrix was better than that of 30CrNi3Mo steel.
作者
李曜
吴建鹏
曹锋
许海龙
LI Yao;WU Jianpeng;CAO Feng;XU Hailong(Jiangyin Xingcheng Special Steel Works Co.,Ltd.,Jiangyin 214400,China)
出处
《腐蚀与防护》
CAS
北大核心
2022年第9期23-26,34,共5页
Corrosion & Protection
