“Corrosion-resistant”chromium steels for oil and gas pipelines can suffer from very severe pitting corrosion by a sulfate-reducing bacterium  

作　　者：Lingjun Xu Pruch Kijkla Sith Kumseranee Suchada Punpruk Tingyue Gu 

机构地区：[1]Department of Chemical&Biomolecular Engineering,Institute for Corrosion and Multiphase Technology,Ohio University,Athens 45701,USA [2]PTT Exploration and Production,Bangkok 10900,Thailand

出　　处：《Journal of Materials Science & Technology》2024年第7期23-29,共7页材料科学技术（英文版）

摘　　要：1.Introduction CO_(2)corrosion of pipelines is one of the major threats in the oil and gas industry[1].Chromium steels(CrSs)and more expen-sive stainless steels(SSs)can mitigate CO_(2)corrosion[2,3].A higher content of Cr results in greater uniform corrosion resistance to CO_(2),which is generally attributed to the enrichment of Cr in the corro-sion product film[4,5].The film,which mainly consists of FeCO_(3),Fe(OH)_(3),Cr(OH)_(3),and Cr_(2)O_(3),forms a passive layer on the metal surface,and the enrichment of Cr in this layer helps block corro-sive anions from contacting with the steel surface[6-8].

关 键 词：CORROSION PITTING steel 

分 类 号：TE988.2[石油与天然气工程—石油机械设备]