MoS_2对铝基材料摩擦磨损性能的影响 |
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引用本文: | 张俊喜,陈百明,龚成功,郭小汝,张振宇,李宝东. MoS_2对铝基材料摩擦磨损性能的影响[J]. 粉末冶金材料科学与工程, 2016, 0(5): 746-753. DOI: 10.3969/j.issn.1673-0224.2016.05.013 |
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作者姓名: | 张俊喜 陈百明 龚成功 郭小汝 张振宇 李宝东 |
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作者单位: | 1. 兰州工业学院材料工程学院,兰州,730050;2. 甘肃省高校绿色切削加工技术及其应用省级重点实验室,兰州,730050 |
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基金项目: | 兰州工业学院青年科技创新项目(14K-012);甘肃省高等学校科研项目(2014A-122);国家自然科学基金资助项目(51361020) |
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摘 要: | 以Al,Fe,Zn等金属粉末和Si粉为原料,采用热压法制备MoS_2含量(质量分数)分别为0和3%的铝基复合材料,在滑动速度为0.377~1.131 m/s以及载荷为4~10 N的条件下进行摩擦试验,研究MoS_2对铝基复合材料摩擦磨损性能的影响。结果表明:在0.377 m/s的滑动速度下,3%MoS_2/铝基复合材料在10 N载荷下具有较低的平均摩擦因数0.4,比不含MoS_2材料的摩擦因数降低近一半;在0.755 m/s的滑动速度下,2种材料的摩擦因数和磨损率接近;在1.131 m/s的滑动速度下,载荷7~10 N时2种材料都严重磨损,3%MoS_2/铝基材料具有相对较低的磨损率,磨损机理为熔化磨损,未添加MoS_2材料的磨损机理为严重塑性变形磨损。添加3%MoS_2可显著改善铝基材料的摩擦磨损性能。
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关 键 词: | 铝基材料 MoS2 摩擦磨损性能 摩擦因数 磨损率 磨损机理 |
Effect of MoS2on tribological properties of aluminum matrix composite materials |
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Abstract: | Aluminum matrix composite materials with MoS2mass fraction of 0% and 3% were fabricated by hot press method using Al, Fe, Zn and Si powders as raw materials. The tribological properties of aluminum matrix materials with MoS2content of 3% and 0% were studied comparatively at sliding speed of 0.377?1.131 m/s and load of 4?10 N. The results show that at the sliding speed of 0.377 m/s, the aluminum matrix material with 3% MoS2has lower average friction coefficient of 0.4 which is 1/2 lower than that of the material with 0% MoS2under load of 10 N; at the sliding speed of 0.755 m/s, the tribological properties of the two aluminum matrix materials are similar; at the sliding speed of 1.131 m/s and load of 7~10 N, although two materials wear severely, the materials with 3% MoS2has lower wear rate than that of material with 0% MoS2, and the wear mechanism of aluminum matrix materials with 3% and 0% MoS2is melting wear and plastic deformation, respectively. It can be seen from the results that addition of 3% MoS2can improve tribological properties of aluminum matrix materials obviously. |
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Keywords: | aluminum matrix materials MoS2 tribological properties friction coefficient wear rate wear mechanism |
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