Ni-advanced weathering steels in Maldives for two years: Corrosion results of tropical marine field test

被引：65
作者：
Jia, Jinghuan [1 ]
Wu, Wei [1 ]
Cheng, Xuequn [1 ]
Zhao, Jinbin [1 ,2 ]
机构：
[1] Univ Sci & Technol Beijing, Inst Adv Mat & Technol, Beijing 100083, Peoples R China
[2] Nanjing Iron & Steel Co Ltd, Nanjing 210035, Peoples R China
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2020年 / 245卷
基金：
中国国家自然科学基金;
关键词：
Weathering steel; Marine atmosphere; Corrosion; Ni; Rust; ATMOSPHERIC-CORROSION; CARBON-STEEL; RUST; CU; RESISTANCE; MECHANISM; PRODUCTS; BEHAVIOR; CR;
D O I：
10.1016/j.conbuildmat.2020.118463
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Properties of rust films generated on Ni-advanced weathering steels in a tropical marine environment were investigated by various surface analysis and electrochemical techniques. The results show that corrosion rate of Ni-advanced weathering steels with different contents of Cu exposed for two years in Male Island is much higher than that in the marine atmosphere with lower level of chloride. Cu has no influence on the phase composition of rust films generated on different Ni-advanced weathering steel, but leads to discrepancy of corrosion resistance. Moreover, Ni-advanced weathering steels with different contents of Cu exhibit the combination of uniform corrosion and non-uniform corrosion, higher Cu content can impede the degree of non-uniform corrosion. (C) 2020 Elsevier Ltd. All rights reserved.
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页数：9
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