WC/Cu对Ni60定向结构涂层在3.5 wt.% NaCl溶液中耐蚀性能的影响

doi:10.13295/j.cnki.issn1673-5196.2026.04.002

兰州理工大学学报 ›› 2026, Vol. 52 ›› Issue (4): 10-19.doi: 10.13295/j.cnki.issn1673-5196.2026.04.002

WC/Cu对Ni60定向结构涂层在3.5 wt.% NaCl溶液中耐蚀性能的影响

张志喜^*1, 韩彦兵², 张家源², 张鹏¹, 李福顺¹, 豆秀伟¹

1.甘肃省科工建设集团有限公司,甘肃兰州 730070;
2.兰州理工大学材料科学与工程学院,甘肃兰州 730050

收稿日期:2025-10-05 出版日期:2026-08-28 发布日期:2026-09-03
通讯作者: 张志喜(1974-),男,甘肃天水人,高级工程师.Email:1772826595@qq.com
基金资助:
甘肃省重点研发计划(24YFGA026),西藏自治区科技计划项目(XZ202502YD0004),甘肃省科技重大专项(22ZD6GA008)

The effect of WC/Cu on the corrosion resistance of Ni60 directionally structure coatings in 3.5 wt.% NaCl solution

ZHANG Zhi-xi¹, HAN Yan-bing², ZHANG Jia-yuan², ZHANG Peng¹, LI Fu-shun¹, DOU Xiu-wei¹

1. Gansu Science and Industry Construction Group Co., Ltd., Ltd., Lanzhou 741000, China;
2. School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China

Received:2025-10-05 Online:2026-08-28 Published:2026-09-03

摘要/Abstract

摘要： 采用火焰喷涂-感应重熔-定向冷却协同工艺制备Ni60/WC/Cu定向结构复合涂层.评估涂层在3.5 wt.% NaCl 溶液中的电化学腐蚀特性和浸泡腐蚀性能,探讨涂层在3.5 wt.% NaCl溶液中的腐蚀行为.结果表明:涂层在3.5 wt.% NaCl溶液中均呈现典型的活化-钝化-过钝化腐蚀特征,其电化学阻抗谱表现出明显的容抗特性.随着Cu(1 wt.%~5 wt.%)含量的增加,涂层极化电阻R_P和电荷转移电阻R_ct先增大后减小,涂层的耐腐蚀性呈现先升高后降低的趋势.3 wt.%Cu/10 wt.%WC涂层的腐蚀电位E_cor移至最正,腐蚀电流密度I_corr减至最小,同时具有最高的R_ct.涂层表面形成了致密均匀的由NiO、Cr₂O₃、Cu₂O和WO₃组成的复合氧化物钝化膜,有效阻止了Cl^－的进一步渗透侵蚀,使得涂层在3.5 wt.% NaCl中表现出良好的耐蚀性能.

关键词: Ni60/WC/Cu定向结构复合涂层, 电化学腐蚀, 浸泡腐蚀, 3.5 wt.% NaCl溶液

Abstract: Ni60/WC/Cu directionally structured composite coatings were prepared using a combined process of flame spraying, induction remelting, and directional cooling. The electrochemical corrosion characteristics and immersion corrosion performance of the coatings was evaluated in a 3.5 wt.% NaCl solution, and the corrosion behavior of the coatings was discussed.The results indicated that all coatings exhibit typical activation-passivation-transpassivation corrosion characteristics in the 3.5 wt.% NaCl solution, with their electrochemical impedance spectra showing distinct capacitive behavior. The polarization resistance (R_p) and charge transfer resistance (R_ct) of the coatings initially increase and then decrease with increasing Cu content (1 wt.%~5 wt.%), and the corrosion resistance of the coatings showed a trend of first increasing and then decreasing. The 3 wt.%Cu/10 wt.%WC coating demonstrate the most positive corrosion potential (E_corr), the lowest corrosion current density (I_corr), and the highest R_ct. The dense and uniform composite oxide passive film is formed on the coating surface composed of NiO, Cr₂O₃, Cu₂O, and WO₃, which effectively prevent further penetration and corrosion by Cl^－, enabling the coatings to exhibit excellent corrosion resistance in the 3.5 wt.% NaCl solution.

Key words: Ni60/WC/Cu directionally structure composite coating, electrochemical corrosion, immersion corrosion, 3.5 wt.% NaCl solution

中图分类号:

TG132
TG156

张志喜, 韩彦兵, 张家源, 张鹏, 李福顺, 豆秀伟. WC/Cu对Ni60定向结构涂层在3.5 wt.% NaCl溶液中耐蚀性能的影响[J]. 兰州理工大学学报, 2026, 52(4): 10-19.

ZHANG Zhi-xi, HAN Yan-bing, ZHANG Jia-yuan, ZHANG Peng, LI Fu-shun, DOU Xiu-wei. The effect of WC/Cu on the corrosion resistance of Ni60 directionally structure coatings in 3.5 wt.% NaCl solution[J]. Journal of Lanzhou University of Technology, 2026, 52(4): 10-19.

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https://journal.lut.edu.cn/CN/Y2026/V52/I4/10

参考文献

[1] Zhong Y,Shao Y B,Gao X D,et al.Fatigue crack growth of EH36 steel in air and corrosive marine environments[J].Journal of Constructional Steel Research,2023 210:108104.
[2] García-Martínez E,Miguel V, Manjabacas M C,et al.Low initial lubrication procedure in the machining of copper-nickel 70/30 ASTM B122 alloy[J].Journal of Manufacturing Processes,2021,62:623-31.
[3] Yang X T,Zeng R,Fu X Y,et al.Influence of the Cu content on the electrochemical corrosion performances of Ni60 coating[J].Corrosion Science,2022,205:110408.
[4] Liu E Y,Zhang Y X,Wang X, et al.Tribocorrosion behaviors of thermal spraying WC/Ni60 coated 316L stainless steel in artificial seawater[J].Industrial Lubrication and Tribology,2019,71:741-748.
[5] Zhang C,Kong D J.Salt spray corrosion behavior and electrochemical performance of Al and Ti reinforced Ni60 coating by laser cladding[J].Materials and Corrosion,2022,73:1045-1056.
[6] Pereira P,Ferro Rocha A M,Sacramento J,et al.Corrosion resistance of WC hardmetals with different Co and Ni-based binders[J].International Journal of Refractory Metals and Hard Materials,2022,104:105799.
[7] Wang M T,Yu B Y,Zheng L,et al.Microstructure and corrosion resistance of Cu/Ni composite coating fabricated by cold spray[J].Trans Indian Inst Met,2024,77:3527-3536.
[8] Liu Z,Dong Y,Chu Z,et al.Corrosion behavior of plasma sprayed ceramic and metallic coatings on carbon steel in simulated seawater[J].Materials & Design,2013,52:630-637.
[9] Liu Y,Xu T,Li G.Research on wear and corrosion resistance of Ni60-WC coating fabricated by laser on the preheated copper alloy[J].Coatings,2022,12(10):1537.
[10] Shi R,Zhang C,Kong D.Salt spray corrosion behavior and electrochemical performance of laser cladded Ni60-Ti3AlC2 composite coatings in 3.5% NaCl solution[J].Materials Today Communications,2023,36:106550.
[11] Bard A J,Faulkner L R,White H S.Electrochemical methods: fundamentals and applications[M].3rd ed.Hoboken:John Wiley & Sons,2022,112-118.
[12] Orazem M E,Tribollet B.Electrochemical impedance spectroscopy[M].2nd ed.Hoboken:John Wiley & Sons,2017,89-95.
[13] Naumkin A V,Kraut-Vass A,Gaarenstroom S W,et al.NIST X-ray photoelectron spectroscopy database,NIST standard reference database 20,Version 4.1[DB].Gaithersburg:National Institute of Standards and Technology,2012,60-68.
[14] Moulder J F,Stickle W F,Sobol P E,et al.Handbook of X-ray photoelectron spectroscopy[M].Eden Prairie:Perkin-Elmer Corporation,1992,13-20.
[15] 杨效田,魏亨利,周俊,等.重熔温度对Ni60/WC定向结构涂层微结构演变的影响[J].哈尔滨工程大学学报,2022,43(4):587-592.
[16] Bastos A C,Quevedo M C,Karavai O V,et al.Review—On the application of the scanning vibrating electrode technique (SVET) to corrosion research[J].Journal of The Electrochemical Society,2017,164(14):C973-C990.

WC/Cu对Ni60定向结构涂层在3.5 wt.% NaCl溶液中耐蚀性能的影响

The effect of WC/Cu on the corrosion resistance of Ni60 directionally structure coatings in 3.5 wt.% NaCl solution

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