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ZrO2 加入量對Zr-8Al合金化學(xué)復(fù)合鍍性能的影響
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河北科技大學(xué)材料學(xué)院,燕山大學(xué),河北科技大學(xué)材料學(xué)院

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TG174.4

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國家973項(xiàng)目(2010CB731604)


Effects of ZrO2 addition on the properties of electroless composite plating on Zr-8Al alloy
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    摘要:

    本文對Zr-8Al合金進(jìn)行了化學(xué)復(fù)合鍍Ni-P-ZrO2處理，并研究了不同ZrO2粒子加入量制備的復(fù)合鍍層的顯微結(jié)構(gòu)、顯微硬度、耐磨性和抗蝕性。結(jié)果表明，與單純化學(xué)鍍Ni-P鍍層相比，Ni-P-ZrO2復(fù)合鍍層的顯微硬度值顯著提高，ZrO2的添加量為4g/L獲得復(fù)合鍍層顯微硬度最高，耐磨性好；在3.5wt%NaCl溶液中耐蝕性雖有所下降，但腐蝕后鍍層完整，仍具有較好的抗蝕性。Zr-8Al合金表面采用4g/LZrO2粒子制備的Ni-P-ZrO2復(fù)合鍍層兼具很好的耐磨性和較好的耐蝕性，適用于既要耐磨又要抗蝕的空間活動(dòng)構(gòu)件。

    Abstract:

    In this paper, electro-less Ni-P-ZrO2 composite plating was preformed on Zr-8Al alloy. The microstructure, microhardness, wear resistance and corrosion resistance in 3.5 wt% NaCl solution of electro-less composite platings for different ZrO2 addition were investigated. The results show that the microhardness of electro-less Ni-P-ZrO2 composite plating was improved compared with that of electro-less Ni-P plating. The microhardness and wear resistance of electroless Ni-P-ZrO2 composite plating for 4g/L ZrO2 addition is super. The corrosion resistance of the electroless Ni-P-ZrO2 composite plating is a bit lower than that of electro-less Ni-P plating, yet the composite plating after corrosion is still complete. So the corrosion resistance of the electroless Ni-P-ZrO2 composite plating for 4g/L ZrO2 addition is still better. The Ni-P-ZrO2 plating on Zr-8Al alloy is potential to applied for moving parts in space which require excellent wear resistance and good corrosion resistance.

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馬 靜,李 強(qiáng),李建輝. ZrO2 加入量對Zr-8Al合金化學(xué)復(fù)合鍍性能的影響[J].稀有金屬材料與工程,2018,47(9):2723~2727.[Ma Jing, LI Qiang, Li Jianhui. Effects of ZrO2 addition on the properties of electroless composite plating on Zr-8Al alloy[J]. Rare Metal Materials and Engineering,2018,47(9):2723~2727.]
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  • 收稿日期:2016-09-29
  • 最后修改日期:2017-03-04
  • 錄用日期:2017-03-15
  • 在線發(fā)布日期: 2018-11-01
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