油气田异种金属焊接接头硫化物应力腐蚀开裂研究进展  

Research Progress on Sulfide Stress Corrosion Cracking of Dissimilar Weld Joints in Oil and Gas Fields

作　　者：刘久云 董立谨 张言 王勤英[1] 刘丽 LIU Jiuyun;DONG Lijin;ZHANG Yan;WANG Qinying;LIU Li(School of New energy and Material,Southwest Petroleum University,Chengdu 610500,China;Corrosion and Protection Center,University of Science and Technology Beijing,Beijing 100083,China)

机构地区：[1]西南石油大学新能源与材料学院,成都610500 [2]北京科技大学腐蚀与防护中心,北京100083

出　　处：《中国腐蚀与防护学报》2024年第4期863-873,共11页Journal of Chinese Society For Corrosion and Protection

基　　金：国家自然科学基金(52001264)。

摘　　要：针对油气田异种金属焊接接头硫化物应力腐蚀开裂(SSCC)行为,概述了焊接接头的种类及微观组织结构,并讨论了异种金属焊接接头的SSCC机理,重点综述了微观组织结构、温度、CO_(2)、应力及焊后热处理等因素对异种金属焊接接头SSCC的影响规律,最后对油气田异种金属焊接接头SSCC的未来研究方向提出了建议与展望。Dissimilar metal weld joints are widely used in oil and gas fields.However,the environmentally assisted cracking is easy to occur in and around the fusion region of weld joints,which may seriously affect the safety of oil and gas transportation and cause huge economic losses.Therefore,it is necessary to deeply study the sulfide stress corrosion cracking(SSCC)behavior of dissimilar metal weld joints in acidic oil and gas environments.In this paper,the research progress on SSCC of dissimilar metal weld joints in oil and gas fields were summarized.Firstly,the types and microstructure of the weld joints are introduced.Secondly,the mechanism of the SSCC of weld joints is discussed briefly.The effect of microstructure of dissimilar metal welded joints,temperature,CO_(2) partial pressure,applied stress and postwelding heat treatment on the SSCC of dissimilar metal welded joints were reviewed.In the end,the research progress of the SSCC of dissimilar metal welded joint in oil and gas fields in recent decades is reviewed,and the future research direction is prospected.

关 键 词：异种金属焊接接头 微观组织 硫化物应力腐蚀开裂 

分 类 号：TG172[金属学及工艺—金属表面处理]