Page 45 - 《摩擦学学报》2021年第3期

第 41 卷 第 3 期 摩 擦 学 学 报 Vol 41 No 3
2021 年 5 月 Tribology May, 2021

DOI: 10.16078/j.tribology.2020035

SiC与球形石墨颗粒混杂增强铝基复合

材料的摩擦磨损性能研究

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金延文 , 曲彦平 , 王 东 , 肖伯律 , 王全兆 , 倪丁瑞 , 马宗义 2
(1. 沈阳工业大学 材料科学与工程学院，辽宁 沈阳 110870;
2. 中国科学院金属研究所 沈阳材料科学国家研究中心，辽宁 沈阳 110016)
摘 要: 以6 092铝合金为基体，通过粉末冶金法分别制备了球形石墨颗粒(Gr)以及SiCp和Gr混杂增强的铝基复合材
料，并采用田口模型结合方差分析，对复合材料与铜合金摩擦副之间的干滑动摩擦磨损行为进行了分析研究. 结果
表明：随着载荷从10 N增至20 N，3种复合材料的摩擦系数、磨损率均相应增加；随滑动速率从0.5 m/s增至1.0 m/s，
15%Gr/6092Al和(5%Gr+20%SiCp)/6092Al的摩擦系数先减小后增大；而(5%Gr+10%SiC p )/6092Al的摩擦系数呈递减
趋势. 相同条件下，单一石墨颗粒增强的复合材料的磨损率大于混杂增强的复合材料的磨损率. 方差分析的结果表
明：增强相百分比单独作用、增强相百分比和滑动速率相互作用以及滑动速率单独作用3个因素对磨损率和摩擦系
数产生了显著的影响. 随SiC p 含量增加，材料硬度增加，SiC p 对基体起到支撑保护作用，磨损面上的磨痕变浅，分层
剥落现象明显减轻，磨屑变得细小，摩擦系数更为稳定，磨损机制由剥层磨损向磨粒磨损转变.
关键词: 铝基复合材料; 混杂增强; 球形石墨颗粒; SiC颗粒; 田口法; 方差分析; 干滑动摩擦磨损; 磨损机理
中图分类号: TH117.1 文献标志码: A 文章编号: 1004-0595(2021)03–0334–10

Sliding Wear Behavior of Aluminum Matrix Composites Hybrid
Reinforced by SiC and Spherical Graphite Particles
p

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JIN Yanwen , QU Yanping , WANG Dong , XIAO Bolu , WANG Quanzhao ,
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NI Dingrui , MA Zongyi 2
(1. School of Materials Science and Engineering, Shenyang University of Technology,
Liaoning Shenyang 110870, China
2. Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese
Academy of Sciences, Liaoning Shenyang 110016, China)
Abstract: Spherical graphite particles (Gr) particles and (Gr+SiC p ) hybrid reinforced 6092Al composites were prepared
via powder metallurgy. The dry sliding friction and wear behaviors of the composites were investigated. The results
showed that as the load increased from 10 N to 20 N, the friction coefficient and wear rate of the three composites
increased correspondingly; the wear sliding speed increased from 0.5 m/s to 1.0 m/s, and the friction coefficients of
15%Gr/6092Al and (5%Gr+20% SiC p )/6092Al firstly decreased and then increased; while (5%Gr+10% SiC p )/6092Al
decreased. When the other conditions were the same, 15%Gr/6092Al composites showed higher wear rate than the
hybrid reinforced composites. The results of the analysis of variance showed that the three factors, the effect of the
reinforcement phase percentage alone, the interaction between the reinforcement phase percentage and the sliding rate,
and the sliding speed alone, have a significant impact on the wear rate and the friction coefficient. With the increase of

Received 6 March 2020, revised 16 December 2020, accepted 16 December 2020, available online 28 May 2021.
*Corresponding author. E-mail: drni@imr.ac.cn, Tel: +86-24-23971749.
This work was supported by the National Natural Science Foundation of China (51671191, 51771193).
国家自然科学基金项目(51671191，51771193)资助.