耐热不锈钢管锈蚀原因分析  

ANALYSIS ON SURFACE CORROSION OF HEAT-RESISTANT STAINLESS STEEL TUBES

作　　者：曹标[1] 林丽珍 谭莹[1] 陈明[1] 

机构地区：[1]广州出入境检验检疫局化矿金属材料检测中心,广州510623 [2]广东省电力工业学校,广州510520

出　　处：《理化检验（物理分册）》2005年第10期527-528,共2页Physical Testing and Chemical Analysis(Part A:Physical Testing)

摘　　要：采用扫描电镜和X射线能谱分析等方法,对一批进口的耐热不锈钢管表面锈蚀原因进行了分析。结果表明,管子表面锈蚀是由海水浸入所致,同时该批管子部分焊缝区存在缩孔和裂纹等焊接缺陷,这些焊接缺陷降低了其耐腐蚀性能,从而加速了腐蚀过程的发生。Surface corrosion of heat-resistant stainless steel tubes imported was analyzed by SEM. EDS. It was shown that the surface corrosion on the tubes resulted from sea-water. And it was also shown that there were welding defects such as shrinkages and cracks. These defects lowered corrosion-resistant ability of the tubes, and accelerated the corrosion.

关 键 词：耐热不锈钢 表面锈蚀 原因分析 

分 类 号：TG142.73[一般工业技术—材料科学与工程]