期刊
CORROSION SCIENCE
卷 71, 期 -, 页码 53-61出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2013.02.003
关键词
Magnesium; Weight loss; SEM; XPS; Atmospheric corrosion
A fine-grained AZ31B alloy and a commonly hot-extruded AZ31B alloy with coarser grains were exposed to marine and urban environments for 1 year, and the atmospheric corrosion behavior of the AZ31B alloys was investigated. The fine-grained AZ31B alloy displays slightly higher corrosion resistance than the commonly hot-extruded AZ31B, particularly in urban environment. Magnesium carbonate hydrate and hydromagnesite are principal corrosion products of the two AZ31B alloys in both marine and urban environments. Besides, it is found that Al-Mn intermetallic particles have little influence on the atmospheric corrosion of the AZ31B alloys. (C) 2013 Elsevier Ltd. All rights reserved.
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