Research on the Simulated Plateau Corrosion Behavior of Welded Joints of Q500qENH Weathering Steel

LAN Tao; LIU Yanchen; ZHANG Xiaowei; XING Guangjie; QIN Guangchong; LIU Xin; LI Ran

doi:10.3724/j.gyjzG25031303

Volume 55 Issue 9

Sep. 2025

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LAN Tao, LIU Yanchen, ZHANG Xiaowei, XING Guangjie, QIN Guangchong, LIU Xin, LI Ran. Research on the Simulated Plateau Corrosion Behavior of Welded Joints of Q500qENH Weathering Steel[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(9): 42-52. doi: 10.3724/j.gyjzG25031303

Citation:

LAN Tao, LIU Yanchen, ZHANG Xiaowei, XING Guangjie, QIN Guangchong, LIU Xin, LI Ran. Research on the Simulated Plateau Corrosion Behavior of Welded Joints of Q500qENH Weathering Steel[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(9): 42-52. doi: 10.3724/j.gyjzG25031303

Citation:

LAN Tao, LIU Yanchen, ZHANG Xiaowei, XING Guangjie, QIN Guangchong, LIU Xin, LI Ran. Research on the Simulated Plateau Corrosion Behavior of Welded Joints of Q500qENH Weathering Steel[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(9): 42-52. doi: 10.3724/j.gyjzG25031303

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Research on the Simulated Plateau Corrosion Behavior of Welded Joints of Q500qENH Weathering Steel

doi: 10.3724/j.gyjzG25031303

1. CSSC International Engineering Co., Ltd., Beijing 100121, China;
2. School of Civil Engineering, Qingdao University of Technology, Qingdao 266520, China;
3. China Merchants Property Operation & Service Co., Ltd., Shenzhen 518067, China

Received Date: 2025-03-13
Available Online: 2025-11-05

Abstract

Abstract

In order to study the corrosion resistance of Q500qENH weathering steel welded joints in the plateau area， a cyclic immersion corrosion simulation test was carried out for the complex polluted environment dominated by an industrial atmosphere in the Qinghai-Tibet Plateau region. Accelerated corrosion tests were carried out on the base metal specimens， as well as V-type and Y-type welded joint specimens of Q500qENH weathering steel. Four corrosion cycles were set in the test： 0 d， 9 d， 18 d， and 27 d. By comparing the corrosion rate， cross-section loss rate， corrosion velocity， and corrosion depth under different corrosion cycles， the acceleration of the cyclic immersion corrosion test was evaluated. The results showed that the corrosion process of Q500qENH weathering steel had obvious stratification， which was highlighted as a rapid corrosion stage and a slow corrosion stage. Under the same corrosion cycle， the corrosion speed of the welded joint specimens was consistently higher than that of the base metal specimens. However， the difference between them initially increased， then decreased， and eventually stabilized over time. By equivalently converting the results of the cyclic immersion test and the natural atmospheric exposure corrosion test， it was found that the corrosion speed was extremely slow in the complex polluted environment （dominated by an industrial atmosphere in the Qinghai-Tibet Plateau region）， and the corrosion time would be far more than 30 years.
- weathering steel,
- cyclic immersion corrosion,
- corrosion resistance,
- welded joints,
- plateau area

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References(20)

References

[1]	中国国家标准化管理委员会. 耐候结构钢:GB/T 4171—2008[S]. 北京:中国标准出版社，2008.
[2]	张宇. 耐候钢和高性能钢的腐蚀疲劳性能研究[D]. 成都:西南交通大学，2020.
[3]	ASAMI K，KIKUCHI M. Characterization of rust layers on weathering steels air-exposed for a long period[J]. Materials Transactions，2002，43（11）:2818-2825.
[4]	CANO H，DÍAZ I，de la FUENTE D，et al. Effect of Cu，Cr and Ni alloying elements on mechanical properties and atmospheric corrosion resistance of weathering steels in marine atmospheres of different aggressivities[J]. Material and Corrosion，2025，76（5）:8-19.
[5]	CHENG X Q，TIAN Y W，LI X G，et al. Optimizing the nickel content in weathering steels to enhance their corrosion resistance in acidic atmospheres[J]. Corrosion Science，2017，115:135-142.
[6]	QIAN Y H，MA C H，NIU D，et al. Influence of alloyed chromium on the atmospheric corrosion resistance of weathering steels[J]. Corrosion Science，2013，74:424-429.
[7]	LIU C，REVILLA R I，LIU Z Y，et al. Effect of inclusions modified by rare earth elements（Ce，La）on localized marine corrosion in Q460NH weathering steel[J]. Corrosion Science，2017，129:82-90.
[8]	ROJHIRUNSAKOOL T，THUBLAOR T，BIDABADI M H S，et al. Corrosion behavior of multiphase bainitic rail steels[J]. Metals，2022，12（4），694.
[9]	KUCERA V，KNOTKOVA D，GULLMAN J，et al. Corrosion of structural metals in atmospheres with different corrosivity at 8 years exposure in Sweden and Czechoslovakia[J]. Key Engineering Materials，1991，20-28:167-177.
[10]	梁彩凤，侯文泰. 碳钢及低合金钢8年大气暴露腐蚀研究[J]. 腐蚀科学与防护技术，1995（3）:183 -186.
[11]	曲晓敏. 免涂装耐候桥梁钢用耐候焊材焊接接头的组织和力学性能研究[D]. 秦皇岛:燕山大学，2018.
[12]	罗振华. 铝合金大气腐蚀室内加速试验研究[D]. 天津:天津大学，2004.
[13]	萧以德，王光雍，李晓刚，等. 我国西部地区大气环境腐蚀性及材料腐蚀特征[J]. 中国腐蚀与防护学报，2003（4）:57-6.
[14]	宋志涛. 桥梁耐候钢Q345qNH的腐蚀行为及其机理的研究[D]. 兰州:兰州理工大学，2019.
[15]	魏子荐. Q450NQR1高强度耐候钢组织性能及腐蚀行为研究[D]. 沈阳:东北大学，2019.
[16]	兰涛，宋帅龙，曲垚，等. 锈损焊接耐候钢拉伸力学性能研究[J]. 工业建筑，2025，55（9）:29-41.
[17]	张博雅. 腐蚀后耐候高强螺栓连接抗剪性能试验研究[D]. 西安:西安建筑科技大学，2022.
[18]	梁彩凤，侯文泰. 碳钢、低合金钢16年大气暴露腐蚀研究[J]. 中国腐蚀与防护学报，2005（1）:2 -7.
[19]	侯文泰，于敬敦，梁彩凤. 碳钢及低合金钢的大气腐蚀[J]. 中国腐蚀与防护学报，1993（4）:291-302.
[20]	丁国清，张波. 几种典型钢在西部大气环境中的腐蚀行为及预测研究[J]. 腐蚀科学与防护技术，2011，23（1）:69-74.