The influence of SrCl<sub>2</sub> on the corrosion behavior of magnesium-Reference-Cited by-同舟云学术

The influence of SrCl₂ on the corrosion behavior of magnesium

Published:2022-04-15 Issue:5 Volume:113 Page:537-545
ISSN:1862-5282
Container-title:International Journal of Materials Research
language:en
Short-container-title:

Author:

Cao Fuyong¹,Zhang Jing¹,Song Xin¹,Chen Jinhua¹,Ying Tao²,Song Guang-Ling¹³⁴^ORCID

Affiliation:

1. Center for Marine Materials Corrosion and Protection, College of Materials , Xiamen University , 422 Siming Road, Siming District , Xiamen , Fujian , P.R. China

2. National Engineering Research Center of Light Alloy Net Forming, School of Materials Science and Engineering , Shanghai Jiao Tong University , Shanghai , P.R. China

3. State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen , P.R China

4. Department of Ocean Science and Engineering , Southern University of Science and Technology , Shenzhen , Guangdong 518055 , P.R China

Abstract

Abstract The influence of SrCl2 on the corrosion behavior of magnesium (Mg) in 3.5 wt.% NaCl was evaluated by immersion testing, electrochemical measurement and the examination of the corrosion morphology. A small addition of SrCl2 decreased the corrosion rate of Mg. In contrast, an excess of SrCl2 increased the corrosion rate of Mg, even higher than that in 3.5 wt.% NaCl. There is a competition effect of the SrCl2 on the corrosion behavior of Mg in 3.5 wt.% NaCl. The Sr2+ can improve the protection of corrosion product film through the formation of SrCO3. While the Cl− can damage the protection of the corrosion product film. The Mg specimen achieved the best corrosion resistance in 3.5 wt.% NaCl + 0.005 mol L−1 SrCl2.

Publisher

Walter de Gruyter GmbH

Subject

Materials Chemistry,Metals and Alloys,Physical and Theoretical Chemistry,Condensed Matter Physics

Link

https://www.degruyter.com/document/doi/10.1515/ijmr-2021-8334/pdf

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