焊管2012，Vol.35Issue(1)：8-12,5.
X65/316L耐蚀合金内衬管焊接接头CO2腐蚀行为研究
Study on the CO2 Corrosion Behavior of X65/316L Corrosion Resistant Alloy Liner Pipe Welded Joint
张念涛 1徐连勇 2韩永典 2刘永贞1
作者信息
- 1. 海洋石油工程股份有限公司建造公司焊接实验室,天津300452
- 2. 天津大学材料科学与工程学院,天津300072
- 折叠
摘要
Abstract
The CO2 corrosion behavior of corrosion resistant alloy liner pipe welded joint was studied by high temperature high pressure autoclave in the simulated CO2 environment. The results indicated that the corrosion product film become thicker and thicker with corrosion temperature increasing, when the temperature is at 120 ℃, the corrosion product film tend to craze, so the corrosion rate firstly decrease and then increase with temperature increasing. The corrosion product maybe is mixture of FeCO3 and Cr2O3 according to the EDS analysis results. After removing the corrosion product film, the surface of the welded joint was uniform and bright, no local or pitting corrosion character was observed. Hence, the corrosion type was uniform corrosion.关键词
CO2腐蚀/耐蚀合金内衬管/焊接接头/腐蚀速率Key words
corrosion/corrosion resistant alloy liner pipe/welded joint/corrosion rate分类
矿业与冶金引用本文复制引用
张念涛,徐连勇,韩永典,刘永贞..X65/316L耐蚀合金内衬管焊接接头CO2腐蚀行为研究[J].焊管,2012,35(1):8-12,5.
