基于双辉技术的气门盘锥面TiN涂层制备和高温摩擦行为

doi:10.13251/j.issn.0254-6051.2024.07.030

金属热处理 ›› 2024, Vol. 49 ›› Issue (7): 195-199.DOI: 10.13251/j.issn.0254-6051.2024.07.030

基于双辉技术的气门盘锥面TiN涂层制备和高温摩擦行为

罗长增^1,2, 曾笑笑^1,2,3, 魏东博⁴, 李旭聪^1,2, 陈月春^1,2, 林慕尧⁴, 张平则⁴

1.潍柴动力股份有限公司, 山东潍坊 261061;
2.内燃机与动力系统全国重点实验室, 山东潍坊 261061;
3.同济大学汽车学院, 上海 201804;
4.南京航空航天大学材料与科学技术学院, 江苏南京 211106

收稿日期:2024-03-28 修回日期:2024-05-24 出版日期:2024-07-25 发布日期:2024-08-29
通讯作者: 魏东博,副教授,博士,E-mail: weidongbo@nuaa.edu.cn
作者简介:罗长增(1985—),男,高级工程师,硕士,主要研究方向为材料表面防护,E-mail: luocz@weichai.com。
基金资助:
内燃机与动力系统全国重点实验室开放课题基金(skleps-sq-2023-080)

Preparation and high-temperature friction behavior of TiN coating on valve disc cone surface based on dual glow technology

Luo Changzeng^1,2, Zeng Xiaoxiao^1,2,3, Wei Dongbo⁴, Li Xucong^1,2, Chen Yuechun^1,2, Lin Muyao⁴, Zhang Pingze⁴

1. Weichai Power Co., Ltd., Weifang Shandong 261061, China;
2. State Key Laboratory of Engine and Powertrain System, Weifang Shandong 261061, China;
3. School of Automotive Studies, Tongji University, Shanghai 201804, China;
4. College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing Jiangsu 211106, China

Received:2024-03-28 Revised:2024-05-24 Online:2024-07-25 Published:2024-08-29

摘要/Abstract

摘要： 利用双层辉光等离子表面冶金技术在NCF3015气门合金钢上制备TiN涂层,通过SEM、EDS、XRD、显微硬度计和高温摩擦磨损试验机研究涂层的微观结构形貌、硬度和高温耐磨性。结果表明:TiN涂层以岛状方式均匀生长,表面结构致密;涂层表面平均硬度可达1265.2 HV0.05;在5 N与10 N载荷下,涂层的比磨损率较气门基体分别降低79.3%、79.7%,是高温苛刻条件下气门表面防护的理想材料,可显著提高气门在发动机中的服役寿命。

关键词: 双层辉光等离子表面冶金技术, TiN涂层, 硬度, 高温耐磨性, 表面防护

Abstract: TiN coatings were prepared on NCF3015 valve alloy steel using double-layer glow plasma surface metallurgy technology. The microstructure, hardness and high-temperature wear resistance of the coatings were studied by SEM, EDS, XRD, microhardness tester and high-temperature friction and wear tester. The results show that the TiN coating grows uniformly in an island-like manner and has a dense surface structure. The average surface hardness of the coating can reach 1265.2 HV0.05. Under 5 N and 10 N loads, the specific wear rate of the coating is reduced by 79.3% and 79.7% compared to the valve substrate, respectively. It is an ideal material for valve surface protection under high temperature and harsh conditions, and can significantly improve the service life of valves in engines.

Key words: double-layer glow plasma surface metallurgy technology, TiN coating, hardness, high temperature wear resistance, surface protection

中图分类号:

TG178

罗长增, 曾笑笑, 魏东博, 李旭聪, 陈月春, 林慕尧, 张平则. 基于双辉技术的气门盘锥面TiN涂层制备和高温摩擦行为[J]. 金属热处理, 2024, 49(7): 195-199.

Luo Changzeng, Zeng Xiaoxiao, Wei Dongbo, Li Xucong, Chen Yuechun, Lin Muyao, Zhang Pingze. Preparation and high-temperature friction behavior of TiN coating on valve disc cone surface based on dual glow technology[J]. Heat Treatment of Metals, 2024, 49(7): 195-199.

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基于双辉技术的气门盘锥面TiN涂层制备和高温摩擦行为

Preparation and high-temperature friction behavior of TiN coating on valve disc cone surface based on dual glow technology

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