825衬里双金属复合管层间与焊缝的电化学腐蚀行为
Electrochemical Corrosion Behavior Between Layers and Welds of 825 Lined Bimetal Composite Pipe
任艳辉 1汪洋 1林建伟 1杨建 2高玥1
作者信息
- 1. 中石油西南油气田川东北气矿,达州 635000
- 2. 中石油西南油气田达州应急抢险维修中心,达州 635000
- 折叠
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.
Abstract
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.
关键词
双金属复合管/层间/焊缝/电化学Key words
bimetal composite pipe/interlayer/weld line/electrochemistry引用本文复制引用
出版年
2024
NETL
NSTL
万方数据