周洪雷,刘平,陈小红,李伟,毕莉明,刘新宽

• 1:上海理工大学机械工程学院
• 2:上海理工大学材料科学与工程学院

摘要(Abstract)：

选用雾化制粉制备的CuCr复合粉末为原料,利用固溶时效时在CuCr颗粒表面析出的纳米Cr粒子作为催化剂,采用水辅助化学气相沉淀法和放电等离子烧结原位合成CNTs/CuCr复合材料。用扫描电镜、透射电镜、中温退火等测试手段对其抗拉强度、摩擦磨损性能、耐蚀性、显微硬度和抗软化温度进行表征。结果表明:CNTs/CuCr复合材料的抗拉强度较纯铜提高了16%,达到320 MPa;CNTs/CuCr复合材料具有良好的耐腐蚀性能和热稳定性,抗软化温度达到660℃;与钢球的摩擦系数较纯铜降低了49%,仅为0.294,磨损量较纯铜降低了55.3%。

关键词(KeyWords)： CuCr合金粉末;固溶时效;摩擦系数;原位合成

Abstract:

Keywords:

基金项目(Foundation): 国家重点研究开发项目(2017YFB0306405)

作者(Author): 周洪雷,刘平,陈小红,李伟,毕莉明,刘新宽

DOI: 10.13289/j.issn.1009-6264.2018-0133

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