Open Access
Long-term corrosion behavior of the 7A85 aluminum alloy in an industrial-marine atmospheric environment
2
Jiangsu Key Laboratory for Premium Steel Material, Nanjing Iron & Steel Co., LTD, Nanjing, 211500, China
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Publication type: Journal Article
Publication date: 2021-05-01
scimago Q1
wos Q1
SJR: 1.318
CiteScore: 9.5
Impact factor: 6.6
ISSN: 22387854, 22140697
Metals and Alloys
Surfaces, Coatings and Films
Ceramics and Composites
Biomaterials
Abstract
The atmospheric corrosion behavior and mechanism of the 7A85 aluminum alloy exposed to the Qingdao industrial-marine atmospheric environment for five years was investigated using the weight-loss method, mechanical property analysis, morphology observations, scanning Kelvin probe force microscopy, and corrosion product analysis. The results showed that the mechanical properties of the exposed 7A85 Al alloy deteriorated considerably, which was mainly induced by pitting corrosion and intergranular corrosion. Al 2 CuMg and Al 7 Cu 2 Fe intermetallic particles were the main precipitates in the 7A85 Al alloy, and the particles not only induced a defective film but also acted as cathode phases in the precipitate–matrix galvanic corrosion couple, which led to pitting corrosion initiation during atmospheric corrosion in Qingdao. Moreover, intergranular corrosion initiated and then propagated owing to micro-galvanic corrosion along the grain boundaries.
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86
Total citations:
86
Citations from 2024:
51
(59.31%)
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GOST
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Zhao Q. et al. Long-term corrosion behavior of the 7A85 aluminum alloy in an industrial-marine atmospheric environment // Journal of Materials Research and Technology. 2021. Vol. 12. pp. 1350-1359.
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Zhao Q., Guo C., Niu K., Zhao J., Huang Y., Li X. Long-term corrosion behavior of the 7A85 aluminum alloy in an industrial-marine atmospheric environment // Journal of Materials Research and Technology. 2021. Vol. 12. pp. 1350-1359.
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RIS
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TY - JOUR
DO - 10.1016/j.jmrt.2021.03.085
UR - https://doi.org/10.1016/j.jmrt.2021.03.085
TI - Long-term corrosion behavior of the 7A85 aluminum alloy in an industrial-marine atmospheric environment
T2 - Journal of Materials Research and Technology
AU - Zhao, Qiyue
AU - Guo, Chuang
AU - Niu, Keke
AU - Zhao, Jinbin
AU - Huang, Yun-Hua
AU - Li, Xiaogang
PY - 2021
DA - 2021/05/01
PB - Elsevier
SP - 1350-1359
VL - 12
SN - 2238-7854
SN - 2214-0697
ER -
Cite this
BibTex (up to 50 authors)
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@article{2021_Zhao,
author = {Qiyue Zhao and Chuang Guo and Keke Niu and Jinbin Zhao and Yun-Hua Huang and Xiaogang Li},
title = {Long-term corrosion behavior of the 7A85 aluminum alloy in an industrial-marine atmospheric environment},
journal = {Journal of Materials Research and Technology},
year = {2021},
volume = {12},
publisher = {Elsevier},
month = {may},
url = {https://doi.org/10.1016/j.jmrt.2021.03.085},
pages = {1350--1359},
doi = {10.1016/j.jmrt.2021.03.085}
}