中文摘要：

新奇 Ti6Al4V 增强粒子的 AZ91?Mg 矩阵 composites 成功地被制作由促使扔方法。处于半固体状况的激动人心的时间直接影响了粒子分发和铸块锭的质量。而且，加热的最佳的速度和液体激动人心能克服矩阵和粒子之间的密度差别引起的粒子解决。与不同粒子内容在 composites 一致地散布的 Ti6Al4V 粒子。平均谷物尺寸随粒子内容的增加减少了。Ti6Al4V 粒子与合金矩阵结合了相当好。另外，在 composites 有一些界面的反应。有像杆的艾尔 ₃ 在接口的 Ti 阶段。从粒子扩大的 precipitates 出现到矩阵，并且他们可能改进界面的结合力量。当粒子内容增加了，最终的张力的力量，收益力量和有弹性的模量被提高，并且延伸比增强与的一样的矩阵材料的好一些原文如此粒子。因此，新奇 composites 展览更好全面的机械性质。

英文摘要：

Novel Ti6Al4V particles-reinforced AZ91 Mg matrix composites were successfully fabricated by stir casting method. The stirring time in semisolid condition directly affected the particle distribution and the quality of the ingots. Furthermore, the optimal speed of the heating and the liquid stirring could overcome particle settlement caused by the density difference between the matrix and the particles. Ti6Al4V particles distributed uniformly in the composites with different particle contents. The average grain size decreased with the increase in the particle contents. The Ti6A14V particles bonded pretty well with the alloy matrix. In addition, there were some interfacial reactions in the composites. There were rod-like A13Ti phases at the interface. The precipitates extended from the particle surface to the matrix, and they might improve the interfacial bonding strength. The ultimate tensile strength, yield strength and elastic modulus were enhanced as the particle contents increased, and the elongation was much better than that of the same matrix material reinforced with SiC particles. Thus, the novel composites exhibit better comprehensive mechanical properties.