Review of Mg alloy corrosion rates

Autor: Andrej Atrens, Zhiming Shi, Syeda U. Mehreen, Sean Johnston, Guang-Ling Song, Xianhua Chen, Fusheng Pan
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Journal of Magnesium and Alloys, Vol 8, Iss 4, Pp 989-998 (2020)
Druh dokumentu: article
ISSN: 2213-9567
DOI: 10.1016/j.jma.2020.08.002
Popis: A review of the literature confirmed that the intrinsic corrosion rate of high-purity Mg as measured by weight-loss is 0.3 mm/y in a concentrated chloride solution. Atmospheric corrosion of Mg alloys has produced corrosion rates of Mg-Al alloys an order of magnitude lower than the intrinsic corrosion rate of Mg in a concentrated chloride solution of 0.3 mm/y. The only successful strategy to produce a Mg alloy with a corrosion rate in a concentrated chloride solution substantially less than the intrinsic corrosion rate as measured by weight loss of Mg of 0.3 mm/y has been to improve the protectiveness of the corrosion product film.
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