纤维增强金属基复合材料耐磨机制的研究

Study on Wear-resisting Mechanism of Fiber Reinforced Metal Matrix Composite

根据纤维增强金属基复合材料的结构特点，研究了界面在复合材料磨损过程中的作用。磨损时，复合材料的界面可消耗裂纹扩展能量，阻滞裂纹扩展．氧化铝短纤维增强铝硅合金复合材料具有优异的耐磨性；基体中的合金元素有利于形成良好的界面，改善复合材料的耐磨性．

The roles of interface between tile fiber and the matrix in fiber reinforced metal matrix composites are studied during wear according to the structural features of the composites. The interface of the composites can dissipate energy of crack propagation and can hold back crack propagation. Alumina short fiber reinforced aluminum-silicon alloy composites possess excellent wear resistance. The alloy elements in the matrix are favourable to forming good interface to improve wear resistance of the composites.