石油输送钢管表面缺陷分析  

Analysis of Surface Pockmark of Steel Pipe for Oil Piping

作　　者：张万山[1] 黄国建[2] 鲁强[1] 董恩龙[1] 

机构地区：[1]鞍钢集团新钢铁公司,辽宁鞍山114021 [2]鞍钢集团技术中心,辽宁鞍山114001

出　　处：《钢铁》2005年第5期69-71,共3页Iron and Steel

摘　　要：采用光学和电子显微镜分析了石油输送管道工程用钢管表面出现的麻坑缺陷,结果表明,产生的缺陷具有沿钢管同一轴面分布的规律性,缺陷内残留物为含有氧化铁和含有氯的腐蚀产物,氯的质量分数达4.22%。产生缺陷的原因是运输、储存过程中与腐蚀性介质接触造成钢管局部点腐蚀。The surface pockmark of steel pipe for oil piping was analyzed. The results showed that the pockmark are distributed along the same axis plane and the residue in defect is corrosion product with ferric oxide and 422% chlorine. The reason of defect generation is local spot corrosion due to contact with the corrosive medium in the transportation and storage.

关 键 词：输油钢管 表面缺陷 分析 

分 类 号：TG172[金属学及工艺—金属表面处理]