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首页> 外文期刊>RSC Advances >Multiwalled carbon nanotubes enhanced the friction layer evolution and self-lubricating property of TiAl-10 wt% Ag-1 wt% MWCNTs sample
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Multiwalled carbon nanotubes enhanced the friction layer evolution and self-lubricating property of TiAl-10 wt% Ag-1 wt% MWCNTs sample

机译：多壁碳纳米管增强了TiAl-10wt％Ag-1wt％MWCNTs样品的摩擦层逸出和自润滑性能

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摘要

The necessity of reducing energy consumption and usage of material in aerospace and aviation industries drives the further optimization of friction and wear properties of TiAl alloys. Herein, the effect of MWCNTs on the friction layer evolution and lubrication properties of TiAl-10 wt% Ag-1 wt% MWCNT (TAM) composites sliding against Si3N4 balls are studied on a ball-on-disk tribometer. The research results show that the friction coefficients and wear rates of TAM sample at 0-160 min are smaller than those of TiAl-10 wt% Ag (TA). During the process of sliding wear, MWCNTs in TAM were gradually exposed to wear scar and were tightly combined with silver, which was beneficial for the formation of lubrication film on the wear scar. Consequently, the formation of lubricating film was accelerated by the MWCNTs, and the evolution process of the friction layer of TAM sample was shortened. The excellent synergetic lubrication behavior of MWCNTs and silver in the lubricating film effectively reduced friction resistance and material loss, resulting in TAM with smaller friction coefficient and lower wear rate in comparison to TA.
机译：降低航空航天和航空工业中材料的能耗和使用材料的必要性推动了Tial合金的摩擦和磨损性能的进一步优化。在本文中，在球盘摩擦计上研究了在球上摩擦计的摩擦层上的TiAl-10wt％Ag-1wt％MWCNT（TAM）复合材料的TiAl-10wt％Ag-1wt％MWCNT（TAM）复合材料的摩擦层演化和润滑性能的影响。研究结果表明，0-160分钟的TAM样品的摩擦系数和磨损率小于TiAl-10wt％Ag（Ta）。在滑动磨损过程中，TAM中的MWCNT逐渐暴露于磨损瘢痕，并与银紧密结合，这有利于在磨损瘢痕上形成润滑膜。因此，润滑膜的形成加速了MWCNT，缩短了TAM样品的摩擦层的进化过程。润滑膜中MWCNT和银的优异协同润滑行为有效地降低了摩擦阻力和材料损失，导致TAM具有较小的摩擦系数和较低的磨损率与TA相比。

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  • 来源
    《RSC Advances》 |2017年第64期|共8页
  • 作者

    Yang Kang; Ma Hongru; Liu Xiyao; Zhang Yangming; He Qiang;

  • 作者单位

    Anyang Inst Technol Dept Mech Engn Ave West Yellow River Anyang 455000 Peoples R China;

    Anyang Inst Technol Dept Mech Engn Ave West Yellow River Anyang 455000 Peoples R China;

    Wuhan Univ Technol Sch Mech &

    Elect Engn 122 Luoshi Rd Wuhan 430070 Peoples R China;

    Anyang Inst Technol Dept Mech Engn Ave West Yellow River Anyang 455000 Peoples R China;

    Anyang Inst Technol Dept Mech Engn Ave West Yellow River Anyang 455000 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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