Q420ENH+316L复合钢对接接头腐蚀及疲劳性能研究

曲垚; 刘培忠; 石轩铭; 秦广冲; 兰涛; 张晓巍; 刘鑫; 李然; 康蕾

doi:10.3724/j.gyjzG25122202

Q420ENH+316L复合钢对接接头腐蚀及疲劳性能研究

doi: 10.3724/j.gyjzG25122202

曲垚¹,
刘培忠²,
石轩铭³,
秦广冲²,
兰涛^2,3, ,,
张晓巍²,
刘鑫²,
李然²,
康蕾³

1. 中国城市建设研究院有限公司, 北京 100032;
2. 中国船舶集团国际工程有限公司, 北京 100121;
3. 同济大学土木工程学院, 上海 200092

基金项目:

“十四五”国家重点研发计划-高原复杂环境下高性能桥梁钢板制造关键技术及应用（2022YFB3706400）；中国船舶集团国际工程有限公司自立科研项目-高原复杂环境下高性能装配式工事关键技术研究（25MT02J）。

详细信息

作者简介:
曲垚，高级工程师，quyao701@163.com。

通讯作者:
兰涛，博士，研究员，主要从事钢结构研究，qd_lantao@163.com。

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出版历程
- 收稿日期: 2025-12-22
- 网络出版日期: 2026-02-26
- 刊出日期: 2026-01-22

Research on Corrosion Resistance and Fatigue Performance of Q420ENH+316L Clad Steel Butt Joints

1. China Urban Construction Design & Research Institute Co., Ltd., Beijing 100032, China;
2. CSIC International Engineer Co., Ltd., Beijing 100121, China;
3. College of Civil Engineering, Tongji University, Shanghai 200092, China

摘要

摘要: 为解决钢桥面板长效防腐与耐久性提升问题，以Q420qENH+316L复合钢对接接头为研究对象，通过0.01mol/L NaHSO₃溶液周期浸润腐蚀试验，结合腐蚀失重法和锈层形貌与成分分析，揭示各区域腐蚀行为及点蚀演化规律；开展腐蚀前后试件的高周疲劳试验，探究腐蚀损伤对其疲劳性能的影响规律，并利用扫描电子显微镜（SEM）观察断口形貌，阐明复合钢接头的疲劳行为特征。结果表明：接头腐蚀呈明显阶段性，锈层构建期质量损失率快速上升，进入稳定期后，腐蚀速率降至初期的51.4%；接头耐蚀呈异质性，不锈钢覆层及焊缝最优，过渡焊缝与耐候钢热影响区（HAZ）为腐蚀敏感区；腐蚀损伤显著劣化接头的疲劳性能，并改变其疲劳失效模式，预腐蚀45 d后，接头疲劳寿命平均降低24.9%，断裂位置从覆层焊趾转移至焊中和过渡焊缝界面，并伴随多裂纹源萌生和次级裂纹数量增加。
- Q420qENH+316L复合钢板 /
- 对接接头 /
- 周期浸润腐蚀 /
- 高周疲劳性能
Abstract: To address the issue of long-term corrosion protection and durability enhancement for steel bridge decks， this study focus on Q420qENH+316L clad steel butt joints. Cyclic immersion corrosion tests were conducted in a 0.01 mol/L NaHSO₃ solution， combined with corrosion weight loss measurements and analyses of the rust layer's morphology and composition， the corrosion behavior and pitting evolution laws in different regions were revealed. High-cycle fatigue tests were then conducted on both uncorroded and corroded specimens to evaluate the impact of corrosion damage on fatigue performance. Scanning electron microscopy （SEM） was employed to observe fracture morphologies and elucidate the fatigue behavior characteristics of the clad steel joints. The results indicated that the corrosion process exhibited distinct stages： the mass loss rate increased rapidly during the rust layer formation period but decreased to 51.4% of the initial rate upon entering the stable period. The corrosion resistance of the joints showed heterogeneity， with the stainless steel cladding and weld zones performing optimally， while the transition weld and the heat-affected zone （HAZ） of the weathering steel were identified as corrosion-sensitive areas. Corrosion damage significantly degraded the fatigue performance and altered the failure modes. After 45 days of pre-corrosion， the average fatigue life of the joints decreased by 24.9%. The fracture location shifted from the cladding weld toe to the weld center and transition weld interface， accompanied by the initiation of multiple crack sources and an increase in the number of secondary cracks.
- Q420qENH+316L clad steel plate /
- butt joint /
- cyclic immersion corrosion /
- high-cycle fatigue performance

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参考文献(28)

[1]	蒋伟平，贝玉成，刘洪武. 常泰长江大桥铁路桥面不锈钢复合钢板焊接工艺研究［J］. 世界桥梁，2023，51（2）：69-75.
[2]	NAFISEH E，MELINA R，MOJTABA M，et al. Corrosion performance of atmospheric corrosion resistant steel bridges in the current climate：a performance review［J］. Materials，2025，18（15）：3510.
[3]	郭建明，宋俊岭，刘志永，等. 耐候钢在桥梁工程中的应用概述［J］. 建筑·建材·装饰，2021（16）：53-54.
[4]	NANCY B. Advances in structural stainless steel research［J］. Thin-Walled Structures，2014，83：1.
[5]	CHEN A H，XU J Q，LI R，et al. Corrosion resistance of high performance weathering steel for bridge building applications［J］. Journal of Iron and Steel Research International，2012，19（6）：59-63.
[6]	CHEN Z Y，QI J J，LIU H Q，et al. Research on production technology of asymmetrically hot rolled stainless steel clad plate［J］. Materials Science Forum，2020，996：185-190.
[7]	LIU Y C，ZHENG Z B，LONG J，et al. Corrosion behaviour of hot-rolled 316L stainless steel-A6 carbon steel composite steel plate for marine environment［J］. Journal of Materials Research and Technology，2023，26：556-570.
[8]	李星皓. 两种典型碳钢与304不锈钢MAG焊焊接接头组织与性能研究［D］. 江门：五邑大学，2022.
[9]	LI H，ZHANG L，ZHANG B，et al. Effect of substrate on metallographic corrosion of cladding in stainless/carbon steel bimetal plate［J］. Results in Physics，2020，16：102925.
[10]	陈忱. 不锈钢/碳钢复合板的焊接工艺及接头组织性能研究［D］. 南京：南京航空航天大学，2012.
[11]	HAIGH B P. Hysteresis in relation to cohesion and fatigue［J］. Transactions of the Faraday Society，1928，24：125-137.
[12]	YUE Y，GAO S，LI N，et al. High-cycle fatigue performance of corroded Q690E high strength steel and Q690qENH high-strength weathering steel［J］. Construction and Building Materials，2023，401：132835.
[13]	BEHVAR A，HAGHSHENAS M. A critical review on very high cycle corrosion fatigue：Mechanisms，methods，materials，and models［J］. Journal of Space Safety Engineering，2023，10：284-323.
[14]	FU Z，SUN Y，HU Y，et al. Low-cycle fatigue behavior of U71Mn rail steel with pre-corrosion［J］. Engineering Failure Analysis，2025，168：109-118.
[15]	WANG Q，QIU P，CHEN B，et al. Study on corrosion fatigue properties of the welded joints of SMA490BW weathering steel［J］. Journal of Physics：Conference Series，2023，2463：012046.
[16]	LIU Y，ZHENG Z，LONG J，et al. Corrosion behaviour of hot-rolled 316L stainless steel-A6 carbon steel composite steel plate for marine environment［J］. Journal of Materials Research and Technology，2023，26：556-570.
[17]	中国国家标准化管理委员会. 不锈钢复合钢板和钢带：GB/T 8165—2008［S］. 北京：中国标准出版社，2008.
[18]	中国国家标准化管理委员会. 不锈钢复合钢板焊接技术要求：GB/T 13148—2008［S］. 北京：中国标准出版社，2008.
[19]	中国国家标准化管理委员会. 金属和合金的腐蚀盐溶液周浸试验：GB/T 19746—2018［S］. 北京：中国标准出版社，2018.
[20]	中国国家标准化管理委员会. 金属材料疲劳试验轴向力控制方法：GB/T 3075—2021［S］. 北京：中国标准出版社，2021.
[21]	LI L，MA R，YANG C，et al. Effect of bias arc on microstructure and corrosion resistance of Q235/304 dissimilar-steel-welded joints［J］. Materials，2024，17（17）：4234.
[22]	PIETRO D. An analytical relation between the Weibull and Basquin laws for smooth and notched specimens and application to constant amplitude fatigue［J］. Fatigue& Fracture of Engineering Materials& Structures，2020，43（5）：991-1004.
[23]	孙倩，张霞，张罡，等. TA2、Q345及其爆炸复合板高周疲劳性能研究［J］. 压力容器，2019，36（7）：9-17.
[24]	SMITH R A，SHIN C，LAKE M S. Fatigue crack growth from sharp notches［J］. International Journal of Fatigue，1985，7（2）：87-93.
[25]	YUE Y，LV Y，DU Z，et al. Investigation on fatigue crack propagation behaviour of novel TiZr-based alloy［J］. Materials Science and Technology，2021，37：1353-1361.
[26]	MAREK S，ANNIKA B，TOBIAS D，et al. Fatigue behavior of metastable austenitic stainless steels in LCF，HCF and VHCF regimes at ambient and elevated temperatures［J］. Metals，2019，9（6）：704.
[27]	ZHANG S，ROMO S，GIORJAO R A，et al. EBSD analysis of strain distribution and evolution in ferritic-Pearlitic steel under cyclic deformation at intermediate temperature［J］. Materials Characterization，2022，193：112293.
[28]	ITAYA T，MINAMI S，NAKAGOMI T，et al. Influence of backing plate on the mechanical property of weld metal in full penetration joints［J］. Journal of Structural and Construction Engineering，2018，83：1-10.