材料科学技术(英文版)2021，Vol.71Issue(12) ：177-185.

Synergistic effect of chloride ion and Shewanella algae accelerates the corrosion of Ti-6Al-4V alloy

Zhong Li Jie Wang Yizhe Dong Dake Xu Xianhui Zhang Jianhua Wu Tingyue Gu Fuhui Wang
材料科学技术(英文版)2021，Vol.71Issue(12) ：177-185.
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Synergistic effect of chloride ion and Shewanella algae accelerates the corrosion of Ti-6Al-4V alloy

Zhong Li 1Jie Wang 1Yizhe Dong 1Dake Xu 1Xianhui Zhang 2Jianhua Wu 2Tingyue Gu 3Fuhui Wang1
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作者信息

  • 1. Shenyang National Laboratory for Materials Science, Northeastern University, Shenyang 110819, China;Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), School of Materials Science and Engineering, Northeastern University,Shenyang 110819, China
  • 2. Fujian Province Key Laboratory of Naval Architecture and Marine Engineering, Xiamen 361021, China;School of Marine Engineering, Jimei University, Xiamen 361021, China
  • 3. Department of Chemical and Biomolecular Engineering, Institute for Corrosion and Multiphase Technology, Ohio University, Athens, OH 45701, USA
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Abstract

The increasing utilization of titanium alloys in marine environments makes their microbiologically influenced corrosion study a timely matter.This work demonstrated that the corrosion of Ti-6Al-4V alloy was accelerated by a marine bacterium Shewanella algae in 2216E medium with different Cl level.Various electrochemical,pitting morphology and passive film analyses demonstrated that S.algae weakened the passive film,which made Cl-more aggressive.The synergy of those two factors caused considerable corrosion acceleration of the titanium alloy,leading to a maximum pit depth of 3.2 μm and corrosion current density of 26.5 nA cm-2 in 2216E medium with 3.50 ％ (w/w) Cl-.

Key words

Titanium alloy/Microbiologically influenced corrosion/Chloride ions/Biofilm/Passive film

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基金项目

国家自然科学基金(51871050)

国家自然科学基金(51901039)

Fund of Fujian Province Key Laboratory of Ship and Ocean Engineering,the Natural Science Foundation of Liaoning Province(20180510041)

Liaoning Revitalization Talents Program(XLYC1907158)

Fundamental Research Funds for the Central Universities of the Ministry of Education of China(N180205021)

Fundamental Research Funds for the Central Universities of the Ministry of Education of China(N180203019)

Fundamental Research Funds for the Central Universities of the Ministry of Education of China()

Fundamental Research Funds for the Central Universities of the Ministry of Education of China(N2002019)

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57
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