球墨铸铁饮用水管道腐蚀失效分析  

Corrosion Failure Analysis of Ductile Iron Potable Water Pipeline

作　　者：乔培鹏[1] 刘飞华[1] 赵万祥[1] 

机构地区：[1]苏州热工研究院电站寿命管理研究中心,苏州215004

出　　处：《腐蚀与防护》2011年第8期669-672,共4页Corrosion & Protection

摘　　要：采用表面分析法、X射线衍射和微生物技术,综合研究了核电厂球墨铸铁材料饮用水管线的腐蚀失效行为。结果表明,微生物腐蚀引起的腐蚀瘤是导致管线失效的直接原因,局部氧浓差腐蚀起到了一定的加速作用。The corrosion failure behavior of ductile iron potable water,pipeline in a nuclear power plant was investigated by surface analysis method, X-ray diffraction and microbial technology. The results showed that tubercles caused by microbiologically influenced corrosion led to the pipeline failure directly. The local oxygen- concentration corrosion was another cause for accelerating the corrosion rate.

关 键 词：微生物腐蚀 腐蚀瘤 氧浓差腐蚀 

分 类 号：TG172.5[金属学及工艺—金属表面处理]