脉冲电沉积Zn-Ni-PTFE复合镀层参数调控及结构性能研究

陈文婷，王启伟，阳颖飞，杨俊杰，曹琳，张鹏

暨南大学先进耐磨蚀及功能材料研究院

通信作者: 王启伟（1977-），博士，研究员，研究方向为增材制造与再制造、表面防护与修复强化、功能材料设计与制备，E-mail：wangqiwei@jnu.edu.cn；
曹琳（1993-），博士，讲师，研究方向为聚合物改性、生物摩擦学、钛合金表面改性，E-mail：caol93@jnu.edu.cn；
张鹏（1983-），博士，副研究员，研究方向为金属功能材料、表面处理技术、离子注入、增材制造，E-mail：tzhangpeng@jnu.edu.cn

Research on Parameter Regulation and Structural Properties of Pulse Electrodeposited Zn-Ni-PTFE Composite Coatings

CHEN Wenting, WANG Qiwei, YANG Yingfei, YANG Junjie, CAO Lin, ZHANG Peng

Institute of Advanced Wear & Corrosion Resistant and Functional Materials

Corresponding authors: WANG Qiwei (1977-), Ph.D., Research Focus: Additive Manufacturing and Remanufacturing, Surface Protection and Repair and Strengthening, and Functional Material Design and Preparation, E-mail: wangqiwei@jnu.edu.cn;
CAO Lin (1993-), Ph.D., Research Focus: Polymer Modification, Biotribology, Surface Modification of Titanium Alloys, E-mail: caol93@jnu.edu.cn;
ZHANG Peng (1983-), Ph.D., Research Focus: Metal Functional Materials, Surface Treatment Technology, Ion Implantation and Additive Manufacturing, E-mail: tzhangpeng@jnu.edu.cn

文章历史：收稿日期：2025-03-30

摘  要

针对Zn-Ni镀层耐磨性不足的问题，采用脉冲电沉积技术制备Zn-Ni-PTFE复合镀层，系统探究占空比、平均电流密度对Zn-Ni-PTFE复合镀层组织结构、PTFE复合量以及力学与摩擦学性能的影响。结果表明，占空比降低可提高PTFE复合量，当占空比为12.5%、电流密度为1 A/dm²条件下制备的复合镀层的PTFE复合量最高达到28.47%（体积分数），水接触角达到了最高的139.6°；在占空比为12.5%、电流密度为2 A/dm²条件下制备的复合镀层磨损率最低为3.2×10⁻⁸ mm³/(N·m)，其摩擦系数在摩擦过程中稳定维持在0.11。高电流密度（>4 A/dm²）导致PTFE复合量骤减，镀层裂纹增多，润滑功能失效。在摩擦过程中镀层以磨粒磨损和疲劳磨损为主，PTFE补充机制可延缓摩擦系数上升，实现长效润滑。

Abstract

To address the insufficient wear resistance of Zn-Ni coatings, this study utilized pulsed electrodeposition technology to prepare Zn-Ni-PTFE composite coatings, systematically investigating the effects of duty cycle and average current density on the microstructure, PTFE incorporation content, and mechanical/tribological properties of the coatings. The results demonstrated that reducing the duty cycle increased the PTFE content. Under a duty cycle of 12.5% and a current density of 1 A/dm², the coating achieved the highest PTFE content of 28.47 vol.% with a water contact angle of 139.6°. At a duty cycle of 12.5% and a current density of 2 A/dm², the coating exhibited the lowest wear rate of 3.2×10⁻⁸ mm³/(N·m), and its coefficient of friction remained stable at 0.11 during sliding tests. High current densities (>4 A/dm²) led to a sharp decrease in PTFE content, increased cracking, and failure of lubrication functionality. During friction, the coatings primarily underwent abrasive wear and fatigue wear, while the PTFE replenishment mechanism delayed the rise in friction coefficient, enabling long-term lubrication.

关键词

脉冲电沉积 ; Zn-Ni-PTFE复合镀层 ; 参数调控 ; 耐磨性能

Keywords

pulsed electrodeposition ; Zn-Ni-PTFE composite coating ; parameter optimization ; wear resistance

引用本文

陈文婷, 王启伟, 阳颖飞, 杨俊杰, 曹琳, 张鹏. 脉冲电沉积Zn-Ni-PTFE复合镀层参数调控及结构性能研究[J]. 表面工程与再制造, 2025, 25(3): 1-18. https://doi.org/10.26935/j.issn.2097-5317.2025.0012

CHEN Wenting, WANG Qiwei, YANG Yingfei, YANG Junjie, CAO Lin, ZHANG Peng. Research on Parameter Regulation and Structural Properties of Pulse Electrodeposited Zn-Ni-PTFE Composite Coatings[J]. Surface Engineering & Remanufacturing, 2025, 25(3): 1-18. https://doi.org/10.26935/j.issn.2097-5317.2025.0012

中图分类号

TQ153.2

基金项目

国家重点研发计划项目,高稳定绿色化电镀工艺技术与成套装备(2023YFB3408200)

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