【摘要】 通过挤压铸渗工艺分别制备了不锈钢纤维、碳钢纤维和铜纤维增强的ZA4 3合金复合材料 ,并分析了影响工艺的主要因素 .研究表明 ,通过挤压铸渗工艺可获得高性能的金属纤维增强的复合材料 ,其纤维与基体界面清洁 ,而且因纤维的冷却作用在纤维周围形成一层晶粒细小的组织 ,这对改善纤维与基体的结合和提高材料的性能是有利的 .文中还对可能导致缺陷的“搭桥”现象及其预防方法进行了分析 .更多还原

【Abstract】 The stainless steel fiber,carbon steel fiber and copper fiber reinforced ZA43 alloy composites have been made by extrusion infiltration process;and the main effecting factors in the process have been analyzed.The results shows:the metal fibers reinforced composites with good properties were obtained through extrusion infiltraton process;the interfaces between fiber and matrix were clean;the structure with fine grain resulted from the fiber cooling was around the fibers;and it is advantageous to enhance the bond between the fiber and matrix and improve the material properties.In addition,the factors results in bridging and countermeasures were analyzed in this paper.更多还原