期刊
CORROSION
卷 56, 期 4, 页码 433-443出版社
NATL ASSOC CORROSION ENG
DOI: 10.5006/1.3280548
关键词
crevice corrosion; pitting corrosion; stress corrosion cracking; sulfur-oxidizing bacteria; sulfate-reducing bacteria
Sulfur and sulfur compounds can produce pitting. crevice corrosion. dealloying. stress corrosion cracking, and stress-oriented hydrogen-induced cracking of susceptible metals and alloys. Even though the metabolic by-products of the biological sulfur cycle are extremely corrosive, there are no correlations between numbers arid types of sulfur-related organisms and the probability or rate oj'corrosion. Determination of specific mechanisms for corrosion caused by microbiologically mediated oxidation and reduction of sulfur and sulfur compounds is complicated by the variety of potential metabolic/energy sources and by-products: the coexistence of reduced and oxidized sulfur species: competing reactions with inorganic and organic compounds: and the versatility and adaptability of microorganisms in biofilms. The microbial ecology of sulfur-rich environments is poorly understood because of the association of aerobes and anaerobes and the mutualism or succession of heterotrophs to autotrophs. The physical scale over Which the Sulfur cycle influences corrosion varies with the environment. The complete sulfur cycle of oxidation and reduction reactions can take place in macroenvironments. including sewers and polluted harbors, or within the microenvironment of biofilms. In this review, reactions of sulfur and sulfur compounds resulting in corrosion were discussed in the context of environmental processes important to corrosion.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据