变异硫酸盐还原菌(SRB)对碳钢腐蚀行为的影响  

EFFECT OF VARIATIAL SULFATE-REDUCING BACTERIA ON CORROSION BEHAVIOR OF CARBON STEEL

作　　者：刘靖[1] 刘宏芳[1] 许立铭[1] 郑家燊[1] 

机构地区：[1]华中科技大学化学系,武汉430074

出　　处：《腐蚀与防护》2002年第2期57-59,62,共4页Corrosion & Protection

摘　　要：研究了变异硫酸盐还原菌 (SRB)对碳钢腐蚀规律 ,变异SRB菌及原始菌的腐蚀对比实验表明 ,耐碱菌对碳钢腐蚀最严重 ,其次是耐酸菌 ,两者均大于原始菌 ;用扫描电子显微镜和电子探针对腐蚀产物和腐蚀后碳钢基体表面进行分析。耐酸菌对碳钢的腐蚀 ,腐蚀产物以菌落形式聚集在一起 ,其基体表面有明显的大小不同的点蚀斑。耐碱菌对碳钢的腐蚀 ,与原始菌腐蚀产物形态相比更均匀一些 。The variation rule of sulfate reducing bacteria (SRB) in media with different pH and the corrosion effects of these variation bacteria on carbon steel have been studied. The results show that the average corrosion rate of alkali resistant bacteria is the largest and that of original SRB is the smallest among these three kinds of SRB. The activity of acid resistant bacteria and alkali resistant bacteria is higher than that of original SRB. The distributing of corrosion products and the surface of carbon steel have been analyzed with scanning electron microscope (SEM) and electron probe microscope analysis (EPMA).

关 键 词：SRB 细菌变异 腐蚀 碳钢 变异硫酸盐还原菌 

分 类 号：TG172.7[金属学及工艺—金属表面处理] TG178[金属学及工艺—金属学]