SiC和WS2颗粒协同改性铜/聚酰亚胺树脂基复合材料的摩擦磨损性能
Friction and Wear Properties of Copper/Polyimide Resin Matrix Composite Coordinated Modified by SiC and WS2 Particles
摘 要
采用粉末冶金法制备了总质量分数为20% SiC与WS2的铜/聚酰亚胺树脂基复合材料，WS2和SiC质量比分别为1：3，3：5，1：1，5：3，3：1，研究了固体润滑剂WS2与增强相SiC质量比对复合材料微观形貌和摩擦磨损性能的影响。结果表明：当WS2与SiC质量比为3：5时，复合材料中开始形成以WS2颗粒为核、SiC颗粒为壳的核-壳结构；随着WS2与SiC质量比的增加，核-壳结构由扁平状变为圆形，且数量增多，面积增大，复合材料的摩擦磨损性能先提高后降低，磨损机制从磨粒磨损转变为疲劳磨损，最后转变为严重的磨粒磨损；当WS2与SiC质量比为5：3时，复合材料的摩擦磨损性能最好。
WS2
树脂基复合材料
核-壳结构
磨损机制
SiC
WS2
resin matrix composite
core-shell structure
wear mechanism
Abstract
Copper/polyimide resin matrix composites with a total mass fraction of 20% SiC and WS2 were prepared by powder metallurgy, and the mass ratios of WS2 to SiC were 1：3, 3：5, 1：1, 5：3, and 3：1, respectively. The effect of the mass ratio of solid lubricant WS2 and reinforced phase SiC on the micromorphology and friction and wear properties of the composites was studied. The results show that when the mass ratio of WS2 to SiC was 3：5, a core-shell structure with WS2 particles as the core and SiC particles as the shell began to form in the composite. With increasing the mass ratio of WS2 to SiC, the core-shell structure changed from flat to circular, and its number and area increased; the friction and wear properties increased first and then decreased, and the wear mechanism changed from abrasive wear to fatigue wear, and finally to severe abrasive wear. When the mass ratio of WS2 to SiC was 5：3, the friction and wear properties of the composite were the best.
中图分类号 TB333 DOI 10.11973/jxgccl202203004
所属栏目 试验研究
基金项目 国家自然科学基金资助项目（51765046）；江西省重点研发计划一般项目（20202BBE53001）；江西省教育厅科技项目（厅局）（DA201903158）
收稿日期 2020/11/13
修改稿日期 2021/12/2
网络出版日期
作者单位点击查看
备注蔡佳琨(1996-),男,江西九江人,硕士研究生
引用该论文: CAI Jiakun,WU Jisi,LI Xiaoyang,YANG Chenggang,ZHANG Qiang. Friction and Wear Properties of Copper/Polyimide Resin Matrix Composite Coordinated Modified by SiC and WS2 Particles[J]. Materials for mechancial engineering, 2022, 46(3): 19～24
蔡佳琨,吴集思,李晓阳,杨成刚,张强. SiC和WS2颗粒协同改性铜/聚酰亚胺树脂基复合材料的摩擦磨损性能[J]. 机械工程材料, 2022, 46(3): 19～24
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【5】湛永钟, 张国定.SiCp/Cu复合材料摩擦磨损行为研究[J].摩擦学学报, 2003, 23(6):495-499.\{ ZHAN Y Z, ZHANG G D.Tribological behavior of SiC particle reinforced copper matrix composites[J].Tribology, 2003, 23(6):495-499.
【6】周海滨.粉末冶金摩擦材料特征摩擦组元与铜基体的界面及其对摩擦磨损机理影响研究[D].长沙:中南大学, 2014. ZHOU H B.Research on the effects of characteristic friction components/Cu matrix interface on friction and wear mechanism of powder metallurgy friction materials[D].Changsha:Central South University, 2014.
【7】WU J S, LIU X L, YAN L M, et al.Long-range order and preferred orientation in WS2 scaffold created by freeze casting[J].Materials Letters, 2017, 196(1):414-418.
【8】WU J S, LI J F, ZHANG L, et al.Effects of environment on dry sliding wear behavior of silver-copper based composites containing tungsten disulfide[J].Transactions of Nonferrous Metals Society of China, 2017, 27(10):2202-2213.
【9】石琛.纳米WS2环保节能发动机润滑油的研制及其性能研究[D].长沙:中南大学, 2010. SHI C.Preparation of nanometer WS2 environmental and energy-saving engine lubricating oil and its properties[D].Changsha:Central South University, 2010.
【10】徐一琨, 詹茂盛.纳米二氧化硅目标杂化聚酰亚胺复合材料膜的制备与性能表征[J].航空材料学报, 2003, 23(2):33-38. XU Y K, ZHAN M S.Preparation and characterization of nano-SiO2/PI on-target hybrid composite films[J].Journal of Aeronautical Materials, 2003, 23(2):33-38.
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【12】周永欣, 徐飞, 吕振林, 等.SiC和石墨颗粒混杂增强铜基复合材料的摩擦磨损性能[J].机械工程材料, 2015, 39(2):90-93. ZHOU Y X, XU F, LV Z L, et al.Friction and wear properties of Cu matrix composites hybrid reinforced with SiC and graphite particles[J].Materials for Mechanical Engineering, 2015, 39(2):90-93.
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