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鑭對Cu/Ti3SiC2/C/MWCNTs/Graphene/La納米復(fù)合材料摩擦學(xué)性能的影響
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成都工業(yè)學(xué)院

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國家自然科學(xué)基金項目（面上項目，重點項目，重大項目）NSFC(51201143), Fundamental Research Funds for the Central Universities (No. 2682015CX001), China Postdoctoral Science Foundation (No. 2015M570794), Key Laboratory of Infrared Imaging Materials and Detectors, Shanghai Institute of Technical Physics, Chinese Academy of Sciences (No.IIMDKFJJ-14-04) and Sichuan Science and Technology Support Program (No. 2016FZ0079), Sichuan Provincial Department of Education Funded Scientific Research and Innovation Team Program (No.14TD0033).


Effect of La content on tribological behaviors of Cu/Ti3SiC2/C/MWCNTs/Graphene/La nanocomposites
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國家自然科學(xué)基金項目（面上項目，重點項目，重大項目）NSFC(51201143), Fundamental Research Funds for the Central Universities (No. 2682015CX001), China Postdoctoral Science Foundation (No. 2015M570794), Key Laboratory of Infrared Imaging Materials and Detectors, Shanghai Institute of Technical Physics, Chinese Academy of Sciences (No.IIMDKFJJ-14-04) and Sichuan Science and Technology Support Program (No. 2016FZ0079), Sichuan Provincial Department of Education Funded Scientific Research and Innovation Team Program (No.14TD0033).

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    摘要:

    本研究采用真空熱壓及熱等靜壓方法制備Cu/Ti3SiC2/C/MWCNTs/Graphene/La納米復(fù)合材料，采用摩擦磨損試驗機研究對磨材料為GCr15時，鑭含量對Cu/Ti3SiC2/C/MWCNTs/Graphene/La納米復(fù)合材料的摩擦學(xué)性能的影響。研究了鑭含量、正應(yīng)力及旋轉(zhuǎn)速度對納米復(fù)合材料摩擦學(xué)行為的影響并揭示其相互作用機理，采用正交試驗分析、方差分析及極差分析法來分析鑭含量、正應(yīng)力及旋轉(zhuǎn)速度的相互作用。采用掃描電鏡和能譜儀觀察并分析磨損表面及磨削的形態(tài)及成分組分。研究結(jié)果表明鑭對納米復(fù)合材料的摩擦磨損性能起到首要作用，當(dāng)鑭的質(zhì)量分數(shù)為0.05%時，復(fù)合材料的磨損機理為磨粒磨損、剝層磨損和氧化磨損，而當(dāng)鑭的質(zhì)量分數(shù)為0.1%和0.3%時，復(fù)合材料的磨損機理為粘著磨損和氧化磨損。

    Abstract:

    Cu/Ti3SiC2/C/MWCNTs/Graphene/La nanocomposites were fabricated by vacuum hot-pressing sintering and hot isostatic pressing. Effect of lanthanum (La) content on tribological behavior of Cu/Ti3SiC2/C/MWCNTs/Graphene/La nanocomposites against GCr15 was evaluated using a wear and abrasion tester. Effect of La content, normal force and rotational speed on tribological behavior of the nanocomposite was investigated to analyze their interaction mechanism. The mutual influence of La content, normal force and rotational speed was analyzed by orthogonality analysis, variance analysis and range analysis. The morphologies of worn surfaces have been observed and analyzed by means of scanning electron microscope (SEM) and energy dispersive x-ray spectroscopy (EDS). Results demonstrate that La content plays a primary role in the influence of friction and wear performance results. The wear mechanism of nanocomposites with 0.05 wt.% La is abrasive wear, delamination wear and oxidation wear. And wear mechanism of nanocomposites with 0.1 wt.% and 0.3 wt.% La is adhesive wear and oxidation wear.

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邵甄胰.鑭對Cu/Ti3SiC2/C/MWCNTs/Graphene/La納米復(fù)合材料摩擦學(xué)性能的影響[J].稀有金屬材料與工程,2018,47(8):2298~2304.[Shao Zhenyi. Effect of La content on tribological behaviors of Cu/Ti3SiC2/C/MWCNTs/Graphene/La nanocomposites[J]. Rare Metal Materials and Engineering,2018,47(8):2298~2304.]
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  • 收稿日期:2017-01-05
  • 最后修改日期:2018-01-28
  • 錄用日期:2018-02-09
  • 在線發(fā)布日期: 2018-10-17
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