硅相锌基复合材料减摩抗磨性能的研究  

Investigating on the Friction Reduction and Wear resistant Performances of Silicon Phase Reinforced Zinc Based Composites

作　　者：刘俊友[1] 王士本[1] 施忠良[2] 顾明元[2] 吴人洁[2] 

机构地区：[1]河北科技大学材料科学与工程系 [2]上海交通大学金属基复合材料国家重点实验室

出　　处：《摩擦学学报》1996年第2期137-142,共6页Tribology

基　　金：国家博士后基金;上海交通大学金属基复合材料国家重点实验室基金

摘　　要：为了改善锌铝合金在干摩擦条件下的耐磨性能，拓宽它的工程应用范围，在其中添加质量分数为１０％的Ｓｉ，同时以质量分数０．１％～０．３％的Ｐ－Ｃｕ对硅相进行变质处理，研制出硅相增强锌基复合材料，并且对这种材料的减摩抗磨性能进行了试验研究．结果表明：硅相锌基复合材料分别在干摩擦和２０＃机械油滴油润滑条件下的减摩抗磨性能良好．扫描电子显微镜观察发现，硅相锌基复合材料中的硅相经变质处理得以细化和分布均匀化，这对改善锌铝合金的综合性能具有重要作用；由于硅相的硬度远比基体的高，在滑动摩擦过程中可以起支撑作用。In order to improve the wear resistance of ZA27 alloy on the condition of dry friction and to wide its application in engineering, silicon phases reinforced zinc based composite with 10% (in mass fraction) silicon modified by 0.1%￣0.3% (in mass fraction) P Cu alloy has been prepared and its friction reduction and wear resistance have been studied. The test results have shown that silicon phases reinforced zinc based composite has good fricion reduction and wear resistant performance under the conditions of dry friction and drop oil lubrication with 20 # mechanical oil. The observation of SEM (scanning electron microscope) has found that silicon phases have been fined and well distributed after modification and which is of important for improving the performance of ZA27 alloy. Besides, the hardness of silicon phase is higher than that of its matrix(ZA27) and it can support the steel counterface and reduce the direct contact point with the ZA27 alloy matrix and ddcrease its friction loss. Therefore, silicon phases reinforced zinc based composite is an friction reduction and wear resistant material.

关 键 词：硅相 锌基复合材料 润滑 减摩抗磨性能 

分 类 号：TB333.023[一般工业技术—材料科学与工程]