Corrosivity of haze constituents to pure Mg

Chen Zhao; Fuyong Cao; Guang-Ling Song

Journal of Magnesium and Alloys (Mar 2020)

Corrosivity of haze constituents to pure Mg

Chen Zhao,
Fuyong Cao,
Guang-Ling Song

Affiliations

Chen Zhao: Center for Marine Materials Corrosion and Protection, College of Materials, Xiamen University, 422 S. Siming Rd., Xiamen 361005, China
Fuyong Cao: Center for Marine Materials Corrosion and Protection, College of Materials, Xiamen University, 422 S. Siming Rd., Xiamen 361005, China
Guang-Ling Song: Center for Marine Materials Corrosion and Protection, College of Materials, Xiamen University, 422 S. Siming Rd., Xiamen 361005, China; State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University, 422 S. Siming Rd., Xiamen 361005, China; Corresponding author at: Center for Marine Materials Corrosion and Protection, College of Materials, China.

Journal volume & issue: Vol. 8, no. 1
pp. 150 – 162

Abstract

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The corrosion behavior of pure Magnesium (Mg) in a Mg(OH)2-saturated solution containing different individual constituents of PM2.5 in haze were studied by hydrogen evolution, weight loss and electrochemical experiments. The results indicated that the corrosivity of these constituents to pure Mg decreased in the following order: (NH4)2SO4>Haze-contaminated-solution>NH4NO3>NH4Cl>NaCl ≈ KCl ≈ Na2SO4 ≈ MgCl2 ≈ CaSO4>Mg(OH)2 (basic solution) >Ca(NO3)2. Possible mechanisms behind the different corrosion behaviors of Mg in response to these constituents were also briefly discussed in this paper. Keywords: Haze (PM2.5), Mg, Corrosion

Published in Journal of Magnesium and Alloys

ISSN: 2213-9567 (Online)
Publisher: KeAi Communications Co., Ltd.
Country of publisher: China
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.keaipublishing.com/en/journals/journal-of-magnesium-and-alloys/

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