Corrosion of copper and steel alloys in a simulated underground storage-tank sump environment containing acid-producing bacteria

被引：61

作者：

Sowards, Jeffrey W. ^{[1
]}

Mansfield, Elisabeth ^{[1
]}

机构：

[1] NIST, Appl Chem & Mat Div, Boulder, CO 80305 USA

来源：

CORROSION SCIENCE | 2014年 / 87卷

关键词：

Atmospheric corrosion; Carbon steel; Copper; Microbiological corrosion; Weight loss; MICROBIAL-CONTAMINATION; MILD-STEEL; INHIBITION; VAPOR; FUELS; OIL;

D O I：

10.1016/j.corsci.2014.07.009

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We simulate corrosion observed in underground fuel storage tank systems by headspace and aqueous exposure to biotic organic acid. Carbon steel and copper were exposed to Acetobacter sp. inoculated into aqueous-ethanol solutions over a period of approximately 30 days. The steel alloy exhibited pitting corrosion and the copper alloy exhibited pitting and intergranular corrosion due to acetic acid produced by the microbes. Corrosion rates were dependent on formation of corrosion products and are ranked as follows in order of increasing magnitude: Copper-aqueous < Steel-aqueous < Copper-headspace < Steel-headspace. The laboratory test method developed here reproduces corrosion observed in practice. Published by Elsevier Ltd.

引用

页码：460 / 471

页数：12

共 4 条

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