焊管2012，Vol.35Issue(8)：27-30,4.
某国产凝汽器不锈钢焊管耐点蚀性能研究
Research on Pitting Corrosion Resistance of Some Domestic Stainless Steel Pipe Used for Condenser
谢亿 1郭建亭 2陈红冬 1徐松 1陈军君1
作者信息
- 1. 湖南省电力公司科学研究院,长沙410007
- 2. 中国科学院金属研究所,沈阳110016
- 折叠
摘要
Abstract
In this article,it analyzed the corrosion leakage reason of some domestic TP304L stainless steel pipe, compared its metallographic structure,chemical composition,accelerated corrosion test and electrochemical test,studied the pitting corrosion resistance difference between domestic TP304L seamless steel pipe and TP304 seamless steel pipe imported from Germany .The results showed that twin crystal exist in microstructure of domestic TP304L seamless steel pipe,the grain is big, the refining uniformity is bad,the Mo content is low,while P content is high,which can increase chlorine embitterment tendency.Meanwhile,corrosion potential is high,the polarization curve has no obvious passivation region,and the current density of passivation is high,so its overall performances are inferior to that of TP304 seamless steel pipe imported from Germany.关键词
凝汽器/不锈钢焊管/点蚀Key words
condenser/ stainless steel pipe/ pitting corrosion分类
矿业与冶金引用本文复制引用
谢亿,郭建亭,陈红冬,徐松,陈军君..某国产凝汽器不锈钢焊管耐点蚀性能研究[J].焊管,2012,35(8):27-30,4.
