[1]王 尧,郑成博.doi: 10.3969/j.issn.1001-3849.2026.06.004不同工艺参数下Ni-P复合镀层对柴油机气缸套表面耐用性影响[J].电镀与精饰,2026,(06):31-40.
　WANG Yao,ZHENG Chengbo.Influence of different process parameters of Ni-P composite coating on durability of diesel engine cylinder liner surface[J].Plating & Finishing,2026,(06):31-40.
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doi: 10.3969/j.issn.1001-3849.2026.06.004不同工艺参数下Ni-P复合镀层对柴油机气缸套表面耐用性影响()

《电镀与精饰》[ISSN:1001-3849/CN:12-1096/TG]

卷:
期数:
2026年06
页码:
31-40
栏目:
出版日期:
2026-06-30

文章信息/Info

Title:
Influence of different process parameters of Ni-P composite coating on durability of diesel engine cylinder liner surface
作者:
王 尧1; 郑成博2
(1. 银川科技学院 能源与动力工程学院,宁夏 银川 7500 21;2. 华北理工大学 冶金与能源学院,河北 唐山 063 210)
Author(s):
WANG Yao1;  ZHENG Chengbo2
(1. School of Energy and Power Engineering, Yichuan University of Science and Technology, Yinchuan 7500 21, China; 2. College of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063210, China)
关键词:
气缸套; Ni-P复合镀层; 相结构; 结合强度
Keywords:
cylinder liner;  Ni-P composite coating;  phase structure;  bonding strength
分类号:
TQ153；TG178
文献标志码:
A
摘要:
为提高柴油机气缸套的耐用性，系统研究了工作温度、镀液pH值、工作电流密度及施镀时间等关键工艺参数对柴油机气缸套表面Ni-P复合镀层微观结构及耐用性的影响。结果表明：各参数对镀层性能均存在显著影响，工作温度50 ℃与pH=3.5的镀液有助于形成表面光滑、结构致密和无微观裂纹的镀层；2.0 A?dm-2电流密度下可使镀层获得高含量的Ni3P硬质相，从而实现约660 HV的显微硬度。进一步对不同施镀时间(6、8和10 h)的研究发现，8 h的施镀时间可使镀层获得最佳的综合性能，其结晶度高达69.1%，结合强度临界载荷达77 N，展现出卓越的耐磨性与耐腐蚀性。
Abstract:
In order to improve the durability of diesel engine cylinder liners, the effects of key process parameters such as working temperature, pH value of plating solution, working current density, and plating time on the microstructure and durability of Ni-P composite coating on the surface of diesel engine cylinder liners were systematically studied. The research results indicate that all parameters have a significant impact on properties of the coating. The working temperature of 50 ℃ and pH=3.5 contribute to the formation of a coating with a smooth surface, a dense structure, and no micro-cracks. A current density of 2.0 A ?dm-2 enables the attainment of a high content of Ni 3P hard phase within the coating, thereby achieving a maximum microhardness of approximately 660 HV. Further investigations into different plating durations (6, 8 and10 h) reveal that an 8 h plating time can make the coating obtain optimal comprehensive performance, with a crystallinity as high as 69.1% and a critical load for bonding strength reaching 77 N, and it shows exceptional wear resistance and corrosion resistance.

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更新日期/Last Update: 2026-06-12