Benefit of the rust layer formed on AlMn lightweight weathering steel in industrial atmosphere

被引：0
|
作者：
Tang, Yihao [1 ]
Li, Bo [1 ]
Ji, Pengfei [1 ,2 ]
Zhang, Xinyu [1 ]
Ma, Mingzhen [1 ]
Liu, Riping [1 ]
机构：
[1] Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Peoples R China
[2] Shandong Lab Yantai Adv Mat & Green Manufacture, Yantai 264006, Peoples R China
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2023年 / 394卷
基金：
中国国家自然科学基金;
关键词：
Industrial atmosphere; Lightweight weathering steel; Rust layer; Corrosion resistance; CORROSION BEHAVIOR; CARBON-STEEL; IRON; ARTIFACTS;
D O I：
10.1016/j.conbuildmat.2023.132308
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The rust layer of AlMn lightweight weathering steel in industrial atmosphere was investigated through rust layer analysis (structure, phase composition and elemental distribution) and electrochemical measurement. The rust layer of lightweight weathering steel exhibits superiority in terms of structure, phase composition and distribution, and electrochemical properties. The enrichment of FeAl2O4 in the inner rust layer refine the rust grain, promotes the transformation of & gamma;-FeOOH to & alpha;-FeOOH, increases the compactness of the rust layer, and produces an electronegative inner rust layer to block the S element. Mn changes the content of FeAl2O4 and & alpha;-FeOOH in the form of MnO/MnO2, which affects the corrosion resistance of lightweight weathering steel.
引用
收藏
页数：15
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