Manganese biofouling and the corrosion behavior of stainless steel

被引:60
作者
Dickinson, WH
Lewandowski, Z
机构
[1] MONTANA STATE UNIV,DEPT CHEM,BOZEMAN,MT 59717
[2] MONTANA STATE UNIV,CTR BIOFILM ENGN,BOZEMAN,MT 59717
[3] MONTANA STATE UNIV,DEPT CIVIL ENGN,BOZEMAN,MT 59717
基金
美国国家科学基金会;
关键词
manganese-oxidizing bacteria; sulfate-reducing bacteria; MnO2; stainless steel; corrosion; pitting;
D O I
10.1080/08927019609386272
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
Manganese- and iron-oxidizing bacteria (MFOB) are widely implicated in microbially influenced corrosion, often in association with sulfate-reducing bacteria (SRB). Traditionally MFOB have been assigned a passive role in the corrosion process, promoting differential aeration cells, and providing oxygen depleted conditions conducive to the growth and corrosive attack of SRB. Recent work. summarized in this article, demonstrates that manganese biofouling alters the electrochemical behavior of stainless steel (SS), and suggests that MFOB are more active in localized corrosion than traditionally held. The paper discusses the chemistry and potentially corrosive impact of manganese and iron oxides on SS, explores the possible relationship between MFOB and SRB, and proposes a model to describe the synergistic influence these organisms may exert in the corrosion process.
引用
收藏
页码:79 / &
页数:16
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