期刊
BIOELECTROCHEMISTRY
卷 123, 期 -, 页码 34-44出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.bioelechem.2018.04.014
关键词
S32654 super austenitic stainless steel; EIS; Microbiological corrosion; Pitting corrosion
资金
- National Natural Science Foundation [U1660118]
- National Basic Research Program of China (973 Program) [2014CB643300]
- National Environmental Corrosion Platform (NECP)
Microbiologically influenced corrosion (MIC) of 532654 (654SMO) super austenitic stainless steel (SASS) by acid producing bacterium (APB), Acidithiobacillus caldus SM-1, a strain of sulfur-oxidizing bacteria (SOB) used in biohydrometallurgy field, was investigated using electrochemical measurements and surface characterizations during a 14-day immersion test. The results indicated that 532654 SASS was susceptible to MIC by APB, and A. caldus SM-1 was capable of producing an aggressive acidic environment underneath the biofilm, resulting in the dissolution of the passive film and severe pitting attacks against 532654 SASS, which is commonly regarded as a corrosion resistant material. (C) 2018 Elsevier B.V. All rights reserved.
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