化学镀镍对Al_2O_3颗粒增强复合材料制备及耐磨性的影响  

The Effects of Electroless Nickel Plating on the Preparation and Wear Resistance of Al_2O_3 Particle Reinforced Composites

作　　者：赵士阳[1] 张国赏[1] 魏世忠 李继文[1,2] 李保元 

机构地区：[1]河南科技大学材料科学与工程学院,河南洛阳471003 [2]河南省耐磨材料工程技术研究中心

出　　处：《矿山机械》2008年第20期25-28,共4页Mining & Processing Equipment

基　　金：河南省教育厅自然科学研究项目(2008A430005);河南科技大学科研基金项目(2007ZY033)

摘　　要：为改善复合材料制备时 Al_2O_3,与钢基体的润湿性,采用化学镀镍工艺对 Al_2O_3颗粒进行表面处理,并通过粉末冶金工艺制备了复合材料,考察了三体磨料磨损性能。结果表明:化学镀镍工艺得到的镍镀层与 Al_2O_3颗粒结合紧密,包覆完整,层厚均匀;镍镀层促进了 Al2_O3颗粒更加均匀地分散在钢基体中,改善了 Al2_O3颗粒与基体的结合界面;提高了复合材料的耐磨性能。To improve the wettability between Al2O3 and steel rnatrix during preparation of composites, the electroless nickel plating is applied to superficial treatment fo Al2O3 particles. Composites are prepared by the powder metallurgy process, and three-body abrasive wear resistance of the composites is investigated. The results show that the electroless nickel plating fully and tightly covers on the surface of Al2O3 particles. The nickel plating can effectively improve the uniform distribution of Al2O3 particles, the bonding interface of Al2O3 particles and steel matrix, and the wear resistance of composites.

关 键 词：化学镀镍 氧化铝 复合材料 粉末冶金 三体磨料磨损 

分 类 号：TB33[一般工业技术—材料科学与工程]