Comparison on corrosion behaviour and mechanical properties of structural steel exposed between urban industrial atmosphere and laboratory simulated environment

被引：97
作者：
Wu, Haiying [1 ,2 ]
Lei, Honggang [1 ]
Chen, Y. Frank [3 ]
Qiao, Junyi [4 ]
机构：
[1] Taiyuan Univ Technol, Coll Architecture & Civil Engn, Yingze West St 79, Taiyuan 030024, Shanxi, Peoples R China
[2] Shanxi Univ, Dept Civil Engn, Honggou South St 36, Taiyuan 030013, Shanxi, Peoples R China
[3] Penn State Univ, Dept Civil Engn, 777 W Harrisburg Pike, Middletown, PA 17057 USA
[4] Shanxi Architectural Coll, Dept Municipal Engn, Wenhua St 369, Jinzhong 030619, Peoples R China
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2019年 / 211卷
关键词：
Atmospheric corrosion; Accelerated test; Q235B structural steel; Thickness loss; Etch pit; Rust layer; Mechanical property; LOW-ALLOY STEELS; CARBON-STEEL; PITTING CORROSION; WEATHERING STEEL; FATIGUE BEHAVIOR; RUST; OUTDOOR; WET; TENSILE; METALS;
D O I：
10.1016/j.conbuildmat.2019.03.207
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Exposure tests in an urban industrial atmosphere and wet/dry cyclic accelerated corrosion tests for Q235B structural steel were performed. The corrosion kinetics under both conditions follow the empirical equation, W = At-n. Inter-crystalline corrosion is the basic cause of mechanical property degradation in both environments. Steel mechanical property degradation is not strongly sensitive to differences in rust layer topographies and corrosion processes; as long as the microscopic mechanisms of corrosion are identical and the topographies of etch pits are similar, the accelerated corrosion test can simulate atmospheric corrosion and accurately predict the degradation pattern of steel mechanical properties in an atmospheric environment. (C) 2019 Elsevier Ltd. All rights reserved.
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收藏
页码：228 / 243
页数：16
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