宋之锴,吴浩宇,龙威,周小平

• 1:湖北工业大学材料与化学工程学院
• 2:湖北工业大学绿色轻工业材料湖北省重点实验室

摘要(Abstract)：

通过粉末冶金法制备了AlCoCrFeNi/Cu-10 mass%Sn复合材料，分别研究了室温和高温下AlCoCrFeNi高熵合金含量对复合材料摩擦磨损性能的影响，并分析了室温下复合材料的磨损机理。结果表明：不含AlCoCrFeNi高熵合金的复合材料的摩擦系数、磨损率均较大，磨痕表面凹坑较深，犁沟行程短且宽，磨损机理以粘着磨损为主；随着AlCoCrFeNi高熵合金含量增加，复合材料摩擦系数和磨损率先减小后增大，磨痕表面凹坑变浅，犁沟变得长且窄；当AlCoCrFeNi高熵合金的含量为30 mass%时，复合材料具有较大的摩擦系数(0.35)、最小的磨损率(0.408 mm~3·N~(-1)·m~(-1)),此时磨损性能达到最佳，磨损机理由粘着磨损向疲劳磨损转变，当AlCoCrFeNi高熵合金的含量为40 mass%时，转变为轻微磨粒磨损。在100～400℃高温下，随着温度的升高，高熵合金含量为30 mass%的复合材料的摩擦系数和磨损率波动最小，摩擦系数稳定在0.35～0.47之间，磨损率在0.11～0.13 mm~3·N~(-1)·m~(-1)之间，具备最佳的高温磨损性能。

关键词(KeyWords)： 粉末冶金;复合材料;高熵合金;摩擦磨损

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 宋之锴,吴浩宇,龙威,周小平

DOI: 10.13289/j.issn.1009-6264.2022-0030

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