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納米Al2O3／Ni復(fù)合電刷鍍層的表征與微動(dòng)磨損機(jī)理
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TG174.441 TB383

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國(guó)家自然科學(xué)基金重點(diǎn)項(xiàng)目(50235030);國(guó)家"973"項(xiàng)目子課題(G1999065009);國(guó)家"863"項(xiàng)目(2003AA331130)


Characterization and Strengthening Mechanisms of Nano-Al2O3/Ni Composite Layer
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    摘要:

    通過在鎳基電刷鍍液中添加納米Al2O3顆粒，制備出了分散均勻、與基質(zhì)金屬Ni結(jié)合良好的Al2O3／Ni復(fù)合電刷鍍層。復(fù)合鍍層的組織致密，顯微硬度高。微動(dòng)磨損試驗(yàn)表明，復(fù)合鍍層在常溫及高溫下抵抗微動(dòng)磨損的能力均強(qiáng)于普通快鎳鍍層。這是因?yàn)?，隨著納米顆粒的加入，Al2O3／Ni復(fù)合電刷鍍層受到細(xì)晶強(qiáng)化、位錯(cuò)強(qiáng)化和彌散強(qiáng)化，抵抗塑性變形和粘著破壞的能力增強(qiáng)，從而具有良好的耐微動(dòng)磨損性能。

    Abstract:

    The Al2O3/Ni composite brush plating coating with homogeneous distribution and good bonding with matrix metal Ni was prepared through adding nano-Al2O3 grains into the Ni-base electro-brush plating bath. The microstructures of the composite brush plating coating are superior to the common rapid Ni-base brush plating coating. The tribological results show that the abrasion-proof of the composite plating coating is better than that of the common plating coating not only at room temperature but also at high temperature. It is found that the plastic deformation-resistance and adhesion reduction performances of the composite plating coating were improved under strengthening effect of nano-Al2O3 grains.

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徐濱士 王海斗 董世運(yùn) 蔣斌.納米Al2O3／Ni復(fù)合電刷鍍層的表征與微動(dòng)磨損機(jī)理[J].稀有金屬材料與工程,2004,33(8):785~788.[Xu Binshi, Wang Haidou, Dong Shiyun, Jiang Bin. Characterization and Strengthening Mechanisms of Nano-Al2O3/Ni Composite Layer[J]. Rare Metal Materials and Engineering,2004,33(8):785~788.]
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  • 最后修改日期:2004-01-18
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