不同TiB2含量下多元混杂铜基复合材料的摩擦磨损性能OA
Friction and Wear Properties of Multi-Component Hybrid Cu-Based Composites with Different TiB2 Contents
为明确TiB2对混杂Cu基复合材料损伤机制的影响,采用快速真空热压烧结方法制备了石墨-TiB2混杂增强Cu基复合材料,研究了不同TiB2含量(0.5%、1.0%、1.5%和3.0%,质量分数)对复合材料摩擦因数、磨损率及磨损表面形貌等的影响.结果表明,随着TiB2含量的增加,复合材料的摩擦因数和磨损率均先降低后上升,TiB2含量为1.0%时复合材料的耐磨性较优,其磨损机制以磨粒磨损为主,伴随有黏着磨损和氧化磨损;混杂Cu基复合材料磨损表面由石墨、CuO、Fe3O4与Fe2O3构成.
To clarify the influence of TiB2 on the damage mechanism of hybrid Cu-based composites,the graphite-TiB2 hybrid reinforced Cu-based composites were prepared through rapid vacuum hot pressing sintering method.The effect of TiB2 content(0.5%,1.0%,1.5%and 3.0%,mass fraction)on friction coefficient,wear rate and wear surface morphology of the composites was analyzed.The results show that with the increase of TiB2 content,the friction coefficient and wear rate initially decrease and then increase,and the wear resistance of the composites with 1.0%TiB2 is better,the wear mechanism is mainly abrasive wear,accompanied by adhesive wear and oxidative wear.The worn surface of the hybrid Cu-based composites is composed of graphite,CuO,Fe3O4 and Fe2O3 phases.
韦江;李恒青;刘洋赈
江西省科学院材料与智能制造研究所,江西 南昌 330096暨南大学 化学与材料学院,先进耐磨蚀及功能材料研究院,广东 广州 510632||暨南大学,高性能金属耐磨材料技术国家地方联合工程研究中心,广东 广州 510632暨南大学 化学与材料学院,先进耐磨蚀及功能材料研究院,广东 广州 510632||暨南大学,高性能金属耐磨材料技术国家地方联合工程研究中心,广东 广州 510632
机械制造
Cu基复合材料TiB2石墨磨损形貌磨损机制
Cu matrix compositeTiB2graphiteworn morphologywear mechanism
《铸造》 2026 (4)
330-335,6
广东省基础与应用基础研究基金(2020A1515111067)广州市基础与应用基础研究基金项目(2024A04J3963).
评论