A new understanding of the effect of Cr on the corrosion resistance evolution of weathering steel based on big data technology

Xiaojia Yang ¹Ying Yang ²Meihui Sun ²Jinghuan Jia ²Xuequn Cheng ²Zibo Pei ²Qing Li ²Di Xu ²Kui Xiao ³Xiaogang Li²

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作者信息

1. Institute for Advanced Materials and Technology,University of Science and Technology Beijing,Beijing 100083,China;Shunde Graduate School,University of Science and Technology Beijing,Foshan 528399,China
2. Institute for Advanced Materials and Technology,University of Science and Technology Beijing,Beijing 100083,China
3. State Key Laboratory of Metal Material for Marine Equipment and Application,Ansteel,Anshan 114021,China
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Abstract

In this work,we studied the effect of Cr element on the corrosion resistance evolution of weathering steel based on corrosion big data technology.It suggested that corrosion big data technology is suitable for evaluation of the effect of microalloying Cr element on the corrosion evolution behavior of weather-ing steel.New understandings prove that the effect of Cr on the corrosion process is dynamic rather than static,the processes is affected by both of the environmental factors and the electrochemical or chem-ical reactions in the rust layer.Besides,Cr element has both beneficial effect and detrimental effect on the corrosion resistance of weathering steel.The beneficial effect is that the general corrosion resistance of Cr-additional steel is better than that of Cr-free steel,while the detrimental effect is that localized corrosion is intensified as the increase of Cr content in the Cr-additional steel.

Key words

Weathering steel/Cr-addition/Big data/Atmospheric corrosion

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基金项目

National Natural Science Foundation of China(52171063)

Fundamental Research Funds for the Central Universities(FRF-IP-19-005)

出版年

2022

材料科学技术(英文版)

中国金属学会中国材料研究学会中国科学院金属研究所

材料科学技术(英文版)

CSTPCDCSCDSCI

影响因子：0.657

ISSN：1005-0302

被引量1

参考文献量55

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