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    田海燕, 朱荻, 曲宁松, 朱增伟. 电泳-电镀沉积制备纳米Al2O3颗粒增强镍基复合镀层的耐磨性能[J]. 机械工程材料, 2009, 33(3): 65-67.
    引用本文: 田海燕, 朱荻, 曲宁松, 朱增伟. 电泳-电镀沉积制备纳米Al2O3颗粒增强镍基复合镀层的耐磨性能[J]. 机械工程材料, 2009, 33(3): 65-67.
    shu
    TIAN Hai-yan, ZHU Di, QU Ning-song, ZHU Zeng-wei. Wear Resistance of Ni-Al2O3 Nano-composite Coatings Prepared by Electrophoretic-electroplating Deposition[J]. Materials and Mechanical Engineering, 2009, 33(3): 65-67.
    Citation: TIAN Hai-yan, ZHU Di, QU Ning-song, ZHU Zeng-wei. Wear Resistance of Ni-Al2O3 Nano-composite Coatings Prepared by Electrophoretic-electroplating Deposition[J]. Materials and Mechanical Engineering, 2009, 33(3): 65-67.
    shu

    电泳-电镀沉积制备纳米Al2O3颗粒增强镍基复合镀层的耐磨性能

    Wear Resistance of Ni-Al2O3 Nano-composite Coatings Prepared by Electrophoretic-electroplating Deposition

      摘要
    • 摘要: 先采用电泳沉积工艺在铜基体上均匀沉积了粒径为20 nm的Al2O3涂层,然后采用电镀技术在Al2O3涂层中沉积金属镍,得到具有较高含量的纳米Al2O3增强镍基复合镀层;用扫描电镜及附带的能谱仪分析了镀层的表面形貌及成分,研究了镀层在干摩擦条件下的摩擦磨损性能,并对其磨损机理进行了探讨.结果表明:相比于纯镍镀层,纳米Al2O3颗粒增强镍基复合镀层的表面更加平整光滑,组织更加致密均匀;镀层中纳米Al2O3颗粒含量对镀层耐磨性能具有显著影响,当其体积分数约为30%时,镀层的耐磨性能最好.

       

      Abstract: Ni-Al2O3 nano-composite coatings with high Al2O3 nano particles content were prepared by electrophoretic-electroplating deposition.A uniform Al2O3 particles film with an average size of 20nm was electrophoretically deposited on Cu substrate and then nickel was electrodeposited onto the Al2O3 film.SEM and EDS was used to analyze the surface morphology and compositions of the nano-composite coatings.The friction and wear properties and abrasion mechanism of the coatings were investigated under dry friction conditions.The results show that,compared to pure Ni coating,the nano-composite coating had a smoother surface and more compact and uniform microstructure.The wear resistance depended on the nano-particles content.The most excellent wear resistance was exhibited when the volume fraction of Al2O3 particles was about 30%.

       

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