选区电化学沉积镍镀层的微观形貌及耐磨性

doi:10.13251/j.issn.0254-6051.2021.12.023

金属热处理 ›› 2021, Vol. 46 ›› Issue (12): 142-148.DOI: 10.13251/j.issn.0254-6051.2021.12.023

选区电化学沉积镍镀层的微观形貌及耐磨性

白雪琛^1,2, 梁国星^1,2, 吕明^1,2

1.太原理工大学机械与运载工程学院, 山西太原 030024;
2.精密加工山西省重点实验室, 山西太原 030024

收稿日期:2021-07-12 出版日期:2021-12-25 发布日期:2022-02-18
通讯作者: 梁国星,教授,博士,E-mail:liangguoxing@tyut.edu.cn
作者简介:白雪琛(1996—),男,硕士研究生,主要研究方向为电化学增材制造,E-mail:673721242@qq.com。
基金资助:
山西省自然科学基金(201801D121174);山西省高新技术领域重点研发计划(201903D121068)

Micromorphology and wear resistance of selective electrochemically deposited nickel coating

Bai Xuechen^1,2, Liang Guoxing^1,2, Lü Ming^1,2

1. College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan Shanxi 030024, China;
2. Key Laboratory of Precision Manufacturing, Taiyuan Shanxi 030024, China

Received:2021-07-12 Online:2021-12-25 Published:2022-02-18

摘要/Abstract

摘要： 利用选区电化学沉积技术在45钢基体上沉积镍镀层,并对其进行形貌观察、能谱分析探寻选区电化学沉积镍镀层组织生长规律,并将镀层和基体耐磨性进行了试验对比。结果表明,选区电化学沉积生长过程为由小型颗粒逐步生长堆叠成为致密镀层;晶粒生长呈螺旋式上升堆叠形态,球状晶粒内部和表面存在微裂纹;晶粒间隙处存在氧元素,氧化反应对于小型晶粒之间的相互融合起抑制作用;选区电化学沉积镍镀层结构组织更加致密,镀层组织与基体组织间存在明显的分界线,镀层组织相较于基体材料耐磨性更好。

关键词: 选区电化学沉积, 镍镀层, 微观形貌, 耐磨性

Abstract: Nickel coating was deposited on the 45 steel substrate by the selective electrochemical deposition technique, the growth law of the electrochemical deposited nickel coating in the selected area was explored by the morphology observation and energy spectrum analysis, and the wear resistance of the coating and the substrate was compared. The results show that the growth process selective electrochemical deposition is gradual by stacking of small particles into a dense coating; the growth of the grains is spirally stacked, with microcracks inside and on the surface of the spherical grains. Oxygen is present in the gaps between the grains, and oxidation reaction inhibits the mutual fusion of small crystal grains; the structure of electrochemically deposited nickel coatings in selected areas is denser, and there is a clear boundary between the coating structure and the matrix structure, and the coating structure has better wear resistance than the matrix material.

Key words: selective electrochemical deposition, nickel coating, micromorphology, wear resistance

中图分类号:

TQ153.1⁺2

白雪琛, 梁国星, 吕明. 选区电化学沉积镍镀层的微观形貌及耐磨性[J]. 金属热处理, 2021, 46(12): 142-148.

Bai Xuechen, Liang Guoxing, Lü Ming. Micromorphology and wear resistance of selective electrochemically deposited nickel coating[J]. Heat Treatment of Metals, 2021, 46(12): 142-148.

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选区电化学沉积镍镀层的微观形貌及耐磨性

Micromorphology and wear resistance of selective electrochemically deposited nickel coating

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