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Zn-Cr2AlC复合材料的制备与摩擦磨损性能

李志 赵文月 缪奶华

李志, 赵文月, 缪奶华等 . Zn-Cr2AlC复合材料的制备与摩擦磨损性能[J]. 北京航空航天大学学报, 2018, 44(4): 874-878. doi: 10.13700/j.bh.1001-5965.2017.0298
引用本文: 李志, 赵文月, 缪奶华等 . Zn-Cr2AlC复合材料的制备与摩擦磨损性能[J]. 北京航空航天大学学报, 2018, 44(4): 874-878. doi: 10.13700/j.bh.1001-5965.2017.0298
LI Zhi, ZHAO Wenyue, MIAO Naihuaet al. Preparation and tribological properties of Zn-Cr2AlC composites[J]. Journal of Beijing University of Aeronautics and Astronautics, 2018, 44(4): 874-878. doi: 10.13700/j.bh.1001-5965.2017.0298(in Chinese)
Citation: LI Zhi, ZHAO Wenyue, MIAO Naihuaet al. Preparation and tribological properties of Zn-Cr2AlC composites[J]. Journal of Beijing University of Aeronautics and Astronautics, 2018, 44(4): 874-878. doi: 10.13700/j.bh.1001-5965.2017.0298(in Chinese)

Zn-Cr2AlC复合材料的制备与摩擦磨损性能

doi: 10.13700/j.bh.1001-5965.2017.0298
基金项目: 

国家自然科学基金 51571008

详细信息
    作者简介:

    李志  男, 硕士研究生。主要研究方向:金属基复合材料

    缪奶华  男, 博士, 副教授, 硕士生导师。主要研究方向:高熔点结构材料、计算材料学等

    通讯作者:

    缪奶华, E-mail: nhmiao@buaa.edu.cn

  • 中图分类号: TB333

Preparation and tribological properties of Zn-Cr2AlC composites

Funds: 

National Natural Science Foundation of China 51571008

More Information
  • 摘要:

    为改善金属Zn的摩擦磨损性能,采用热压法制备Cr2AlC陶瓷颗粒增强Zn基复合材料,并研究了Cr2AlC质量分数对复合材料的金相组织、维氏硬度、相对密度及摩擦磨损性能的影响。结果表明,复合材料的硬度随着Cr2AlC质量分数的适量增加而明显升高。当Cr2AlC的质量分数达到20%时,复合材料的硬度是纯Zn的1.52倍。摩擦磨损实验表明,Cr2AlC颗粒的引入,可显著改善复合材料的摩擦磨损性能,摩擦系数由纯Zn的0.75降到Zn-20%Cr2AlC的0.65,Zn-30%Cr2AlC的磨损率相比纯Zn下降了80.54%。分析磨损表面形貌,得出其磨损类型为磨粒磨损和剥层磨损。

     

  • 图 1  纯Zn及复合材料的XRD图谱

    Figure 1.  XRD patterns of pure Zn and composites

    图 2  纯Zn及复合材料的金相组织

    Figure 2.  Microstructures of pure Zn and composites

    图 3  纯Zn及复合材料的硬度和相对密度

    Figure 3.  Vickers-hardness and relative density of pure Zn and composites

    图 4  摩擦系数随滑动时间的变化

    Figure 4.  Friction coefficient versus sliding time

    图 5  纯Zn及复合材料的磨损率

    Figure 5.  Wear rates of pure Zn and composites

    图 6  纯Zn及复合材料的磨损表面形貌

    Figure 6.  Worn surface morphology of pure Zn and composites

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出版历程
  • 收稿日期:  2017-05-11
  • 录用日期:  2017-07-21
  • 网络出版日期:  2018-04-20

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