Cu对粉末冶金Fe3Al基复合材料性能的影响

研究了Cu含量对粉末冶金Fe3Al基复合材料的烧结性能和力学性能的影响,分析了施加载荷和改变转速对加入不同量铜粉末冶金Fe3Al基复合材料的摩擦磨损性能的影响,并借助电子显微镜和能谱分析了不同铜含量Fe3Al基复合材料的磨损机理.结果表明:加入12%的Gu可使Fe3Al基复合材料具有良好的烧结性能和力学性能;载荷和转速对复合材料的磨损形式受铜的加入量的影响;铜的加入影响复合材料的磨损形式和磨损机理,当含铜量较少时,复合材料以磨粒磨损为主,随加入铜的量的增多,其磨损形式变为磨粒磨损和轻微的粘着磨损形式,加入大量铜时,则以粘着磨损为主.

Effect of Cu on properties of Fe3Al matrix composite material

The effect of Cu content on sintering properties and mechanics performance of powder metallurgy Fe3A1 matrix composite material was investigated. By changing applied load and shifting rotation speed, the effect of different Cu content on friction and wear of materials was studied. The mechanism of wear of Fe3Al matrix composite material of different Cu content was studied by scanning electron microscopy and energy dispersive spectrometry. It has been found that 12% Cu content made Fe3Al matrix composite material perform sintering properties and mechanics well. According to different Cu content, the mechanism of wear of Fe3Al matrix composite material, by changing applied load and rotation speed, was affected; Cu also affected wear mechanism of composite material. With a little Cu content, the wear mechanism of Fe3Al matrix composite material mainly was abrasive wear; with increasing Cu content, the wear mechanism of materials was mainly abrasive wear, accompanied by a little adhesive wear. Under the condition of much Cu content, Fe3 Al matrix composite material took on serious adhesive wear.