Bio-inhibitive effect of an algal symbiotic bacterium on corrosion of magnesium in marine environment

Dong，Yuqiao1; Song，Guang Ling1,2,3,4; Xu，Yuqing5; Zheng，Dajiang1

2023

10.1016/j.jma.2022.12.008

Journal of Magnesium and Alloys   Impact Factor & Quartile

2213-9567

It is a longstanding and challenging task to develop sustainable environment-friendly and cost-effective corrosion-protection technologies for Mg alloys, especially under marine conditions in which corrosion can normally be significantly accelerated by bacterial activity. However, this paper reports on the corrosion of highly active Mg interestingly inhibited by an algal-symbiotic bacterium Bacillus altitudinis. The corrosion of Mg in the presence of the bacterium drastically reduced by one order of magnitude after 14 days of immersion. This means that the algal-symbiotic bacterium widely available in natural ocean environments may be employed as a green and sustainable inhibitor in the marine industry. Based on electrochemical measurements, surface analyses and microbe experiments, a combined inhibition mechanism is proposed in the paper to interpret the interesting corrosion behavior of Mg.

Bacterium Biofilm Corrosion inhibition Magnesium Marine environment

English

Others

National Key Research and Development Program of China[2017YFB0702100];National Natural Science Foundation of China[51671163];National Natural Science Foundation of China[51731008];National Natural Science Foundation of China[51901198];National Natural Science Foundation of China[52250710159];

2-s2.0-85147706934

Scopus

1.College of Materials,Xiamen University,Xiamen,361005,China
2.Department of Ocean Science and Engineering,Southern University of Science and Technology,Shenzhen,China
3.State Key Laboratory of Physical Chemistry of Solid Surfaces,Xiamen University,Xiamen,422 S. Siming Rd,361005,China
4.The University of Queensland,School of Mechanical and Mining Engineering,Division of Materials Engineering,St Lucia,4072,Australia
5.Institute of Corrosion Science and Technology,Guangzhou,Guangdong,510530,China

Dong，Yuqiao,Song，Guang Ling,Xu，Yuqing,et al. Bio-inhibitive effect of an algal symbiotic bacterium on corrosion of magnesium in marine environment[J]. Journal of Magnesium and Alloys,2023.

Dong，Yuqiao,Song，Guang Ling,Xu，Yuqing,&Zheng，Dajiang.(2023).Bio-inhibitive effect of an algal symbiotic bacterium on corrosion of magnesium in marine environment.Journal of Magnesium and Alloys.

Dong，Yuqiao,et al."Bio-inhibitive effect of an algal symbiotic bacterium on corrosion of magnesium in marine environment".Journal of Magnesium and Alloys (2023).