STRESS CORROSION CRACKING BEHAVIORS OF 2205 DUPLEX STAINLESS STEEL IN HYDROGEN SULFIDE SOUR ENVIRONMENTS

摘要：

The electrochemical and stress corrosion cracking (SCC) behaviors of the 2205 duplex stainless steel in sour H2S and H2S + CO2 environments have been investigated by SSRT, soaking U bend specimens and potentiodynamic polarization curve measurements. The results show that 2205 duplex SS has a good resistance to SCC in hydrogen sulfide sour environments. The sensitivity to SCC increases with pH value loared and concentration enhanced, and pH value has more influence to 2205 SS. When the pH value is 4.5 or more than it, the susceptivity of 2205 is very low under normal temperature and pressure, and it is affected little by the concentration of H2S; The existence of CO2 can increase the sensitivity of 2205SS to hydrogen sulfide stress.

作者: Liu Zhiyong Zhi Qing Dong Chaofang Li Xiaogang

作者单位: Corrosion and Protection Center, University of Science and Technology Beijing, Key Lab of Corrosion Erosion and Surface Technique of Beijing City, Beijing,100083

会议类型: 国际会议

会议名称: 第九届工程结构完整性国际会议(The Ninth International Conference on Engineering Structural Integrity Assessment)

会议地点: 北京

会议语种:英文

在线出版日期: 2007-10-15（万方平台首次上网日期，不代表论文的发表时间）