The Effect of Homogenization on the Corrosion Behavior of Al–Mg Alloy
- Authors: Li Y.1, Hung Y.1,2,3, Du Z.2, Xiao Z.3, Jia G.1
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Affiliations:
- Light Alloys Research Institute
- School of Mechanical and Electrical Engineering
- State Key Laboratory of High Performance Complex Manufacturing
- Issue: Vol 119, No 4 (2018)
- Pages: 339-346
- Section: Structure, Phase Transformations, and Diffusion
- URL: https://journals.rcsi.science/0031-918X/article/view/167497
- DOI: https://doi.org/10.1134/S0031918X18040178
- ID: 167497
Cite item
Abstract
The effect of homogenization on the corrosion behavior of 5083-O aluminum alloy is presented in this paper. The intergranular corrosion and exfoliation corrosion were used to characterize the discussed corrosion behavior of 5083-O aluminum alloy. The variations in the morphology, the kind and distribution of the precipitates, and the dislocation configurations in the samples after the homogenization were evaluated using optical microscopy (OM), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The effects of the highly active grain boundary character distribution and the types of constituent particles on the corrosion are discussed on the basis of experimental observations. The results indicated that the corrosion behavior of 5083-O alloy was closely related to the microstructure obtained by the heat treatment. Homogenization carried out after casting had the optimal effect on the overall corrosion resistance of the material. Nevertheless, all samples could satisfy the requirements of corrosion resistance in marine applications.
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About the authors
Yin Li
Light Alloys Research Institute
Author for correspondence.
Email: li.yin@csu.edu.cn
China, Changsha, 410083
Yuanchun Hung
Light Alloys Research Institute; School of Mechanical and Electrical Engineering; State Key Laboratory of High Performance Complex Manufacturing
Email: li.yin@csu.edu.cn
China, Changsha, 410083; Changsha, 410083; Changsha, 410083
Zhiyong Du
School of Mechanical and Electrical Engineering
Email: li.yin@csu.edu.cn
China, Changsha, 410083
Zhengbing Xiao
State Key Laboratory of High Performance Complex Manufacturing
Email: li.yin@csu.edu.cn
China, Changsha, 410083
Guangze Jia
Light Alloys Research Institute
Email: li.yin@csu.edu.cn
China, Changsha, 410083