摘要
采用三电极体系对825衬里双金属复合管进行电化学测试,得到了层间三个不同界面及焊缝四个不同界面的极化曲线与电化学阻抗谱。结果表明:层间区域X65界面的腐蚀倾向最大,焊缝区域三种混合界面的腐蚀倾向最大。
Eelectrochemical testing was carried out to 825 lined bimetal composite pipe using a three electrode system,and the polarization curves and electrochemical impedance spectra of three different interfaces between layers and four different interfaces between welds were obtained.The results show that the corrosion tendency of the X65 interface in the interlayer region was the highest,and the corrosion tendency of the three mixed interfaces in the weld seam region was the highest.
作者
任艳辉
汪洋
林建伟
杨建
高玥
REN Yanhui;WANG Yang;LIN Jianwei;YANG Jian;GAO Yue(Southwest Oil and Gas Field Company Northeast Sichuan Gas Division,Dazhou 635000,China;Southwest Oil and Gas Field Company Dazhou Emergency Rescue and Maintenance Center,Dazhou 635000,China)
出处
《腐蚀与防护》
CAS
CSCD
北大核心
2024年第1期47-50,共4页
Corrosion & Protection
关键词
双金属复合管
层间
焊缝
电化学
bimetal composite pipe
interlayer
weld line
electrochemistry
