Investigation of microbial corrosion inhibition of Cu-bearing 316L stainless steel in the presence of acid producing bacterium Acidithiobacillus caldus SM-1

Yuqiao Dong ¹Jiaqi Li ²Dake Xu ²Guangling Song ¹Dan Liu ³Haipeng Wang ¹M.Saleem Khan ⁴Ke Yang ⁵Fuhui Wang²

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作者信息

1. Center for Marine Materials Corrosion and Protection, College of Materials, Xiamen University, Xiamen, 361005, China
2. Shenyang National Laboratory for Materials Science, Northeastern University, Shenyang, 110819, China
3. School of Materials Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, China
4. Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518000, China
5. Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China
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Abstract

Stainless steel (SS) has unsatisfied corrosion resistance in many aggressive environments,particularly under a low pH condition in the bioleaching industry.In this study,through surface analyses and electrochemical measurements,the corrosion resistance of a novel Cu-bearing 316L SS was evaluated in the presence of an acid-producing bacterium,Acidithiobacillus caldus SM-1 that was able to create an extremely acidic corrosive environment.The significantly enhanced anti-microbiologically-inducedcorrosion performance could be explained by the intracellular reactive oxygen species (ROS) and Fenton reaction on the Cu-bearing 316L SS.

Key words

Stainless steel/Acid-producing bacteria/Copper ion/Reactive oxygen species/Corrosion resistance

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基金项目

出版年

2021

材料科学技术(英文版)

中国金属学会中国材料研究学会中国科学院金属研究所

材料科学技术(英文版)

CSTPCDCSCDSCI

影响因子：0.657

ISSN：1005-0302

参考文献量50

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