辽宁石油化工大学学报 ›› 2025, Vol. 45 ›› Issue (1): 90-96.DOI: 10.12422/j.issn.1672-6952.2025.01.012

• 机械工程 • 上一篇    

非晶NiP⁃WC复合镀层的耐蚀性研究

张新富1(), 何波1, 周亮2, 贺勇3, 倪黎2, 苏铭滨1, 刘伟4, 陈吉1()   

  1. 1.辽宁石油化工大学 机械工程学院,辽宁 抚顺 113001
    2.中国石化催化剂有限公司,北京 100029
    3.中国石化催化剂 有限公司 长岭分公司,湖南 岳阳 414012
    4.辽宁石油化工大学 土木工程学院,辽宁 抚顺 113001
  • 收稿日期:2024-03-13 修回日期:2024-04-20 出版日期:2025-02-25 发布日期:2025-02-15
  • 通讯作者: 陈吉
  • 作者简介:张新富(1999⁃),男,硕士研究生,从事耐蚀复合涂层制备方面的研究;E⁃mail:2196889020@qq.com
  • 基金资助:
    辽宁省教育厅科学技术研究项目(L2017LQN023);中国石化催化剂有限公司项目(SCC?B?2023?033)

Study on the Corrosion Resistance of Amorphous NiP⁃WC Composite Coating

Xinfu ZHANG1(), Bo HE1, Liang ZHOU2, Yong HE3, Li NI2, Mingbin SU1, Wei LIU4, Ji CHEN1()   

  1. 1.School of Mechanical Engineering,Liaoning Petrochemical University,Fushun Liaoning 113001,China
    2.Sinopec Catalyst Co. ,Ltd. ,Beijing 100029,China
    3.Changling Branch of Sinopec Catalyst Co. ,Ltd. ,Yueyang Hunan 414012,China
    4.School Civil Engineering,Liaoning Petrochemical University,Fushun Liaoning 113001,China
  • Received:2024-03-13 Revised:2024-04-20 Published:2025-02-25 Online:2025-02-15
  • Contact: Ji CHEN

摘要:

采用化学镀的方法,在紫铜基体上制备非晶NiP?WC(碳化钨)复合镀层,研究了镀层在质量分数为3.5%的NaCl溶液以及浓度为1 mol/L的盐酸溶液中的耐蚀性;利用扫描式电子显微镜(SEM)、能谱仪(EDS)EDS、X射线衍射仪(XRD),对镀层的表面形貌、成分及微观结构进行了表征;采用动电位极化和阻抗谱对镀层的耐蚀性进行了分析。结果表明,在质量分数为3.5%的NaCl溶液中,NiP?WC镀层的自腐蚀电位较非晶NiP镀层正移约111 mV,自腐蚀电流密度减小约68.8%,电荷转移电阻提高约6.7倍;在浓度为1 mol/L的盐酸溶液中浸泡,NiP?WC镀层较NiP镀层的腐蚀速率下降约1个数量级,表明均匀分布的WC粒子可以显著提高非晶NiP的耐蚀性。

关键词: 化学镀, WC粉末, 耐蚀性, 浸泡

Abstract:

An amorphous NiP?WC composite coating was prepared on a copper substrate by chemical plating. The corrosion resistance of the coating was studied in a NaCl solution with a mass fraction of 3.5% and a 1 mol/L hydrochloric acid solution. The surface morphology, composition, and microstructure of the coating were characterized by scanning electron microscopy (SEM), Energy dispersive spectrometer (EDS), and X?ray diffraction (XRD). The corrosion resistance of the coating was analyzed by potentiodynamic polarization and impedance spectroscopy. The results show that in a NaCl solution with a mass fraction of 3.5%, the self corrosion potential of NiP?WC coating shifted approximately 111 mV higher as compared to amorphous NiP coating, resulting in a decrease of approximately 68.8% in self corrosion current density and an increase of approximately 6.7 times in charge transfer resistance. Soaking in 1 mol/L hydrochloric acid solution, the corrosion rate of NiP?WC coating decreased by about an order of magnitude compared to NiP coating, indicating that uniformly distributed WC particles can significantly improve the corrosion resistance of amorphous NiP.

Key words: Chemical plating, WC powder, Corrosion resistance, Soak

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引用本文

张新富, 何波, 周亮, 贺勇, 倪黎, 苏铭滨, 刘伟, 陈吉. 非晶NiP⁃WC复合镀层的耐蚀性研究[J]. 辽宁石油化工大学学报, 2025, 45(1): 90-96.

Xinfu ZHANG, Bo HE, Liang ZHOU, Yong HE, Li NI, Mingbin SU, Wei LIU, Ji CHEN. Study on the Corrosion Resistance of Amorphous NiP⁃WC Composite Coating[J]. Journal of Liaoning Petrochemical University, 2025, 45(1): 90-96.

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链接本文: https://journal.lnpu.edu.cn/CN/10.12422/j.issn.1672-6952.2025.01.012

               https://journal.lnpu.edu.cn/CN/Y2025/V45/I1/90