[1]高荣龙,向可友,蓝玉良,等.doi: 10.3969/j.issn.1001-3849.2025.08.004低氢脆高耐蚀Zn-Ni-SiO2复合电沉积技术[J].电镀与精饰,2025,(08):24-28.
　Gao Ronglong,Xiang Keyou,Lan Yuliang,et al.Zn-Ni-SiO2 composite electrodeposition technology of low hydrogen embrittlement and high corrosion resistance[J].Plating & Finishing,2025,(08):24-28.
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doi: 10.3969/j.issn.1001-3849.2025.08.004低氢脆高耐蚀Zn-Ni-SiO2复合电沉积技术()

《电镀与精饰》[ISSN:1001-3849/CN:12-1096/TG]

卷:
期数:
2025年08
页码:
24-28
栏目:
出版日期:
2025-08-31

文章信息/Info

Title:
Zn-Ni-SiO2 composite electrodeposition technology of low hydrogen embrittlement and high corrosion resistance
作者:
高荣龙1; 向可友1; 蓝玉良1; 罗泽庭1; 刘慧丛2; 朱立群2
(1. 珠海市玛斯特五金塑胶制品有限公司,广东 珠海 519100 ;2. 北京航空航天大学 材料科学与工程学院,北京 100191)
Author(s):
Gao Ronglong1;  Xiang Keyou1;  Lan Yuliang1;  Luo Zeting1;  Liu Huicong2*;  Zhu Liqun2
(1. Zhuhai Master Hardware Plastic products Co., Ltd., Zhuhai 519100, China; 2. School of Materials Science and Engineering, Beihang University, Beijing 100191, China)
关键词:
氯化物镀液; Zn-Ni-SiO2复合镀层; 耐腐蚀性能; 氢脆敏感性
Keywords:
chloride bath;  Zn-Ni-SiO2 composite coating;  corrosion resistance;  hydrogen embrittlement sensitivity
分类号:
TG172，TG178
文献标志码:
A
摘要:
钢铁零件需要电沉积Zn-Ni合金以提高其耐腐蚀性能，为解决电沉积过程中析氢副反应所带来的氢脆问题，本文对酸性氯化物Zn-Ni合金镀液中不同电流密度下获得的Zn-Ni-SiO2复合镀层的组成及镀层性能开展了研究，采用中性盐雾、扫描电镜、能谱仪等技术对镀层进行了分析，并探讨了表面SiO2复合沉积的可能机制。结果表明：不同阴极电流密度下，在Zn-Ni镀液中加入纳米SiO2颗粒得到的Zn-Ni-SiO2复合镀层的结晶更加细致，保持了Zn-Ni合金镀层呈γ相(Ni5Zn21)且向(411)晶面择优取向等特征，且由于复合镀层表面形成了利于提高耐蚀性的SiO2凝胶膜，使得Zn-Ni-SiO2复合镀层相比于Zn-Ni合金镀层具有更佳的耐腐蚀性能，高强度钢零件在电沉积Zn-Ni-SiO2复合镀层后也比Zn-Ni镀层具有更低的氢脆敏感性。
Abstract:
Zn-Ni alloys need to be electrodeposited on iron and steel parts to improve its corrosion resistance. In order to solve the hydrogen embrittle problem caused by the side reaction of hydrogen evolution during electrodeposition, the composition and coating properties of Zn-Ni-SiO 2 composite coatings obtained in acidic chloride Zn-Ni alloy plating solution at different current densities were studied in this paper. The coating was analyzed by means of neutral salt spray, scanning electron microscope and energy dispersive spectrometer, and the possible mechanism of SiO2 composite deposition on the surface was discussed. The results show that under different cathode current densities, the Zn-Ni-SiO 2 composite coating obtained by adding nano-SiO 2 particles to the Zn-Ni plating solution has more detailed crystallization, and the Zn-Ni alloy coating has the characteristics of γ phase (Ni5Zn21) and preferential orientation toward (411) crystal surface. Moreover, due to the formation of SiO 2 gel film conducive to improving corrosion resistance on the surface of the composite coating, the Zn-Ni- SiO2 composite coating has better corrosion resistance than the Zn-Ni alloy coating. After electrodeposition of Zn-Ni- SiO 2 composite coating, high-strength steel parts also have lower hydrogen embrittlement sensitivity than the Zn-Ni coating.

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更新日期/Last Update: 2025-08-11