Page 4 - 《摩擦学学报》2020年第6期
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第 40 卷 第 6 期 摩 擦 学 学 报 Vol 40 No 6
2020 年 11 月 Tribology Nov, 2020
DOI: 10.16078/j.tribology.2020036
Ni Al基涂层与不同材料配副时宽
3
温域的摩擦学行为
1*
范祥娟 , 李文生 , 杨 军 , 朱圣宇 , 程 军 , 何东青 1
2
2
2
1
(1. 兰州理工大学 有色金属先进加工与再利用国家重点实验室，甘肃 兰州 730050;
2. 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)
摘 要: 采用等离子喷涂法制备Ni 3 Al基涂层，分别以316L和Al 2 O 3 为摩擦偶件，考察25~800 ℃内摩擦偶件材料对涂
层摩擦学行为的影响. 结果表明：在软金属Ag析出、BaF 2 /CaF 2 脆-塑性转变和摩擦氧化协同作用下，随温度升高Ni 3 Al/
316L和Ni 3 Al/Al 2 O 3 摩擦副的摩擦系数和磨损率具有一致的变化规律，且Ni 3 Al/Al 2 O 3 摩擦副性能更佳. 25 ℃时，涂层与
316L对摩时发生黏着磨损和磨粒磨损，而与高硬度的Al 2 O 3 对摩时发生脆性剥层和磨粒磨损，使涂层表面更粗糙导
致较高的摩擦系数；Al 2 O 3 热导率较低，高接触应力作用下产生的大量摩擦热不能及时耗散，剥落材料贮存于剥落坑
或黏附于磨损表面，使Ni 3 Al/Al 2 O 3 摩擦副具有较低的磨损率. 200~600 ℃时，高硬度的Al 2 O 3 对涂层的犁削作用较强
导致Ni 3 Al/Al 2 O 3 摩擦副具有高的摩擦系数；而涂层在Al 2 O 3 碾压下发生塑性变形，使其具有较低的磨损率. 800 ℃时，
高硬度的Al 2 O 3 促使磨损表面形成高氧化物含量的润滑膜，使Ni 3 Al/Al 2 O 3 摩擦副具有低的摩擦系数和高的磨损率.
关键词: Ni 3 Al基; 等离子喷涂; 摩擦偶件; 宽温域; 摩擦学性能
中图分类号: TH117.1 文献标志码: A 文章编号: 1004-0595(2020)06–0687–10
Tribological Behaviors of Ni Al-Based Coating Coupled with
3
Different Counterpart Materials in Wide Temperature Range
1*
2
2
2
1
FAN Xiangjuan , LI Wensheng , YANG Jun , ZHU Shengyu , CHENG Jun , HE Dongqing 1
(1. State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals,
Lanzhou University of Technology, Gansu Lanzhou 730050, China
2. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics,
Chinese Academy of Sciences, Gansu Lanzhou 730000, China)
Abstract: The Ni 3 Al based composite coating was prepared by plasma spraying. The influences of 316L and Al 2 O 3
counterpart material on the tribological behaviors of the coating at 25 ℃ to 800 ℃ were investigated. The results showed
that under the synergistic action of precipitation of soft metal Ag, brittle-plastic transformation of BaF 2 /CaF 2 and tribo-
oxidation, the friction coefficient and wear rate of Ni 3 Al/316L and Ni 3 Al/Al 2 O 3 tribo-pairs had the similar trend with the
increase of temperature, and the Ni 3 Al/Al 2 O 3 tribo-pairs had better performance. At 25 ℃, the coating coupled with
316L adhesive wear and abrasive wear occurred, while brittle peeling and abrasive wear occurred when the coating
coupled with Al 2 O 3 of high hardness, resulting in rougher coating surface and higher friction coefficient. However, the
Received 7 March 2020, revised 13 May 2020, accepted 26 May 2020, available online 28 November 2020.
*Corresponding author. E-mail: liws@lut.edu.cn, Tel: +86-931-2973567, +86-13919250687.
The project was supported by Gansu Special Commissioner Program for the International Scientific and Technological Cooperation
(17JR7WA017)， the International Science and Technology Cooperation Projects of National Key R&D Programs
(2016YFE0111400) and the National Natural Science Foundation of China (51674130) and Key Research and Development project
in Gansu(17YF1WA159).
甘肃省国际科技合作特派员计划(17JR7WA017)，国家重点研发计划国际科技合作项目(2016YFE0111400)，国家自然科学基
金项目(51674130)和甘肃省重点研发计划项目(17YF1WA159)资助.
