增强相Al_3Ti状态对Al_3Ti/ZL101原位复合材料力学性能的影响

Influence of the Condition of Reinforcing Phase Al_3Ti on Mechanical Properties of Al_3Ti/ZL101 Composite

通过正交实验研究的 Al3Ti/ ZL10 1原位复合材料的最佳成分重量百分比为 :Mg0 .35 % ,Si7% ,Ti3.5 %。其制备工艺为在特定温度下 ,往 ZL 10 1基体材料中加入 Ti O2 发生直接反应 ,形成 Al3Ti/ ZL 10 1复合材料 ;在正确的制备工艺下 ,所生成的增强相 Al3Ti的形态为杆状 ,平均尺寸 0 .5μm左右 ,均匀弥散地分布于α- Al晶粒内部。与基体ZL10 1相比 ,该 Al3Ti/ ZL10 1原位复合材料热处理后的室温强度。

WT5BZ]In situ composite Al 3Ti/ZL101 was confirmed by orthogonal experimental method.It is found that the optimum composition is Mg 0 35%, Si 7%, Ti 3 5%; The size of the reinforcing phase and the mechanical properties of this in situ composite are affected by manufacturing technology The tensile strength and ductility of the composite are higher than those of ZL101 matrix The average grain size of reinforced phase in the composite is about 0 5μm which is distributed in the matrix uniformly