Page 151 - 《摩擦学学报》2021年第6期

第 41 卷 第 6 期 摩 擦 学 学 报 Vol 41 No 6
2021 年 11 月 Tribology Nov, 2021

DOI: 10.16078/j.tribology.2020215

MoO -ZnO/镍基复合涂层制备及其
3
摩擦学性能研究

1,2
1,2*
1,2*
1,2
1,2
1,2
石佩璎 , 易戈文 , 王齐华 , 万善宏 , 于 源 , 孙虎伟 , 高 强 1,2
(1. 中国科学院兰州化学物理研究所 固体润滑国家重点实验室, 甘肃 兰州 730000;
2. 中国科学院大学 材料科学与光电工程中心, 北京 100049)
摘 要: 利用等离子喷涂工艺制备了含氧化物(MoO 3 -ZnO)的镍基复合涂层，通过UMT-3球盘式高温摩擦试验机评
价了复合涂层在室温、400和800 ℃下的摩擦学性能，并采用扫描电镜(SEM)、能谱分析仪(EDS)、X射线衍射仪
(XRD)以及拉曼光谱仪(Raman)等分析手段研究了涂层微观组织、物相组成以及磨损机理. 结果表明：在室温和400 ℃，
复合涂层的摩擦系数和磨损率均高于Ni-5%Al金属基底，且随着氧化物含量的增加，润滑和耐磨性能均被削弱，主
要表现为磨粒磨损和黏着磨损. 在800 ℃，MoO 3 和ZnO的添加可以有效改善复合涂层的摩擦性能，随着其含量的增
加，摩擦系数变化不明显，而磨损率逐渐增加. 特别是添加5%MoO 3 和5%ZnO的复合涂层在800 ℃摩擦系数低至
−5
0.28，磨损率低至4.22×10 mm /(N·m)，其良好的高温润滑耐磨性能得益于摩擦表面二元氧化物(NiO、MoO 3 和
3
ZnO)和三元氧化物(ZnMoO 4 和NiMoO 4 )的协同作用.
关键词: 氧化物; 复合涂层; 等离子喷涂; 摩擦学性能; 磨损机理
中图分类号: TG174.442 文献标志码: A 文章编号: 1004-0595(2021)06–0936–10

Tribological Properties of Nickel-based Composite Coatings
with the Addition of MoO -ZnO
3

1,2
1,2
1,2*
1,2*
1,2
SHI Peiying , YI Gewen , WANG Qihua , WAN Shanhong , Yu Yuan ,
1,2
SUN Huwei , GAO Qiang 1,2
(1. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics,
Chinese Academy of Sciences, Gansu Lanzhou 730000, China
2. Center of Materials Science and Optoelectronics Engineering, University of
Chinese Academy of Sciences, Beijing 100049, China)
Abstract: Nickel-based composite coatings with the addition of oxides (MoO 3 -ZnO) were prepared by atmospheric
plasma spraying. The wear tests were carried out on an UMT-3 ball-on-disc high temperature tribometer at room
temperature, 400, and 800 ℃, respectively. And the microstructures, phase compositions, and wear mechanisms were
analyzed by SEM, EDS, XRD, and Raman. The tribological mechanisms on the view of oxidation and tribo-chemistry
were determined by the microstructure and phase composition analysis of the worn surface of both composite coatings
and corresponding counterpart balls. The XRD patterns of composite coatings showed the presence of α-ZnMoO 4 within
composite coatings, indicating the solid reaction between MoO 3 and ZnO during the plasma spraying process. The XRD
peaks of α-ZnMoO 4 in composite coatings were more intensive with the increasing content of MoO 3 and ZnO powders
in feedstock powders. And the structure of MoO 3 and ZnO powders remained stable during the spraying process. The

Received 12 October 2020, revised 4 May 2021, accepted 9 May 2021, available online 28 November 2021.
*Corresponding author. E-mail: gwyi@licp.cas.cn, Tel: +86-931-4968611; E-mail: wangqh@licp.cas.cn.
The project was supported by the National Natural Science Foundation of China (51575505, 51675508) and the National Key R&D
Program of China (2018YFB2000100).
国家自然科学基金项目( 51575505, 51675508)和国家重点研发计划(2018YFB2000100) 资助.