无机材料学报

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化学镀Ni-P-SiC复合镀层的研究

俞世俊; 宋力昕; 黄银松; 赵荣根; 胡行方   

  1. 中国科学院上海硅酸盐研究所特种无机材料研究与发展中心 上海 200050
  • 收稿日期:2003-05-23 修回日期:2003-06-27 出版日期:2004-05-20 网络出版日期:2004-05-20

Electroless Ni-P-SiC Composite Coating

YU Shi-Jun; SONG Li-Xin; HUANG Yin-Song; ZHAO Rong-Gen; HU Xing-Fang   

  1. Research and Development Ceater of Special Inorganic Materials of Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050; China
  • Received:2003-05-23 Revised:2003-06-27 Published:2004-05-20 Online:2004-05-20

摘要: 采用化学复合镀工艺,成功地制备出了不同颗粒含量的Ni-P-SiC复合镀层,SiC颗粒均匀分布于镍磷合金基质中.复合镀层的镀态硬度随颗粒的复合量增加成线性上升;经400℃,1h热处理后,复合镀层硬度得到进一步提高,最大硬度为HV501435.磨损试验表明,400℃,1h热处理后,复合镀层磨损率只有相同磷含量镍磷镀层的30%,其耐磨性能比中碳钢提高了近一个数量级.

关键词: 化学镀, 复合镀层, 耐磨性能

Abstract: A series of Ni-P-SiC composite coatings were successfully prepared by electroless plat- ing process. Up to 22vol% SiC particles can be uniformly distributed in Ni-P matrix. It was found that hardness linearly increases with the SiC particles co-deposition in the as-deposited coatings. Heat-treatment can improve the coating properties, i.e. in the conditions 400℃ with 1h treated, Ni-P-SiC coating shows the highest hardness of HV501435. Wear tests show that electroless Ni-P- SiC exhibits good wear resistant property. The wear rate is only 30% of that of Ni-P coating and 10% of mild steel substrate, respectively.

Key words: electroless plating, composite coatings, wear resistant property

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