Rust layer adhesion capability and corrosion behavior of weathering steel under tension during initial stages of simulated marine atmospheric corrosion

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Rust layer adhesion capability and corrosion behavior of weathering steel under tension during initial stages of simulated marine atmospheric corrosion

机译：模拟海洋大气腐蚀初始阶段耐候钢在拉伸下的锈层粘附能力和腐蚀行为

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This paper presents an investigation into the adhesion capability of rust layer under tension, which is formed on weathering steel (WS) in simulated marine atmosphere. The electrochemical response of pre-rusted WS specimens after tension was employed to explore insights into the corrosion behavior after cracking or delaminating of rust layer. The rust layer formed on Q420qNH exhibited the stronger adhesion capability than Q420qNHY. The steel presented a gradually accelerated corrosion process as increasing external load. The 0.9f(y) for Q420qNH and 0.8f(y) for Q420qNHY were suggested as the critical stress for the durability design of WS bridges in coastal areas. (C) 2019 Elsevier Ltd. All rights reserved.

机译：本文研究了在模拟海洋大气环境下，耐候钢（WS）上形成的锈层在张力下的粘附能力。预拉伸的WS试样在拉伸后的电化学响应被用来探索对锈层开裂或分层后的腐蚀行为的见解。在Q420qNHY上形成的锈层比Q420qNHY具有更强的附着力。随着外部载荷的增加，钢呈现出逐渐加速的腐蚀过程。建议将Q420qNH的0.9f（y）和Q420qNHY的0.8f（y）作为沿海地区WS桥耐久性设计的临界应力。（C）2019 Elsevier Ltd.保留所有权利。

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《Construction and Building Materials》 |2020年第20期|117393.1-117393.17|共17页
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作者单位

Tianjin Univ Sch Civil Engn Tianjin 300072 Peoples R China;

Tianjin Univ Sch Civil Engn Tianjin 300072 Peoples R China|Tianjin Univ Minist Educ Key Lab Coast Civil Struct Safety Tianjin 300072 Peoples R China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
Weathering steel; Rust layer; Adhesion capability; Tension; Corrosion behavior; Critical stress;

机译：耐候钢防锈层;附着力;张力;腐蚀行为;临界压力;

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5. Atmospheric corrosion study of weathering steel using sensor technology. [D] . Hereng, Yann. 2007

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Rust layer adhesion capability and corrosion behavior of weathering steel under tension during initial stages of simulated marine atmospheric corrosion

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