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首页> 外文期刊>RSC Advances >The study of the preparation and tribological behavior of TiAl matrix composites containing 1 wt% multi-walled carbon nanotubes
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The study of the preparation and tribological behavior of TiAl matrix composites containing 1 wt% multi-walled carbon nanotubes

机译：含1 wt％多壁碳纳米管的TiAl基复合材料的制备及其摩擦学性能研究

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摘要

The objective of searching for an optimized applied load was to minimize friction and decrease energy dissipation in rotating mechanical components. TiAl matrix self-lubricating composites containing 1.0 wt% multi-walled carbon nanotubes (TiAl-1.0 wt% MWCNTs), were evaluated over 80 min on a ball-on-disk tribometer at 1.65, 4.15, 6.65, 9.15 and 11.65 N, for their sliding friction and wear behaviors. The testing results showed that TiAl-1.0 wt% MWCNTs obtained excellent sliding friction and wear behaviors at 9.15 N with small friction coefficients and low wear rates, compared to those at 1.65, 4.15, 6.65 and 11.65 N. It was found that the small mean wear rates of TiAl-1.0 wt% MWCNTs were attributed to the high subsurface hardness of the wear scar. The low standard deviation (STDEV) of the wear rates was mainly determined by the homogeneous thickness of the compacted layer at 9.15 N.
机译：寻找最佳施加载荷的目的是最大程度地减少旋转机械组件中的摩擦并降低能量耗散。含有1.0 wt％的多壁碳纳米管（TiAl-1.0 wt％MWCNT）的TiAl基质自润滑复合材料在80分钟内在球盘摩擦计上以1.65、4.15、6.65、9.15和11.65 N进行了评估。它们的滑动摩擦和磨损行为。测试结果表明，与1.65、4.15、6.65和11.65 N时相比，TiAl-1.0 wt％MWCNT在9.15 N时具有优异的滑动摩擦和磨损行为，摩擦系数小且磨损率低。 TiAl-1.0 wt％MWCNTs的磨损率归因于磨损痕迹的高表面硬度。磨损率的低标准偏差（STDEV）主要由压实层的均匀厚度为9.15 N决定。

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