Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 673, Issue -, Pages 73-79Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2016.02.228
Keywords
Corrosion; 5083-H321 Al alloy; Homogenization; Microstructure
Categories
Funding
- Southwest Aluminum (Group) Co. Ltd.
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The effect of homogenization on the corrosion behavior of 5083-H321 aluminum plates was studied. The intergranular corrosion, exfoliation corrosion, and electrochemical polarization, which are used to characterize the corrosion behavior of 5083-H321 aluminum alloy, were investigated. The results indicated that the samples that were not homogenized show superior corrosion resistance than the homogenized samples. The effects of the grain boundary character distribution, grain shape, and precipitates on corrosion are discussed on the basis of experimental observations. Omitting homogenization after casting is expected to have the optimal effect on the overall corrosion resistance of the material. (C) 2016 Elsevier B.V. All rights reserved.
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