Development of high elastic and high repulsion type metal matrix composite materials and its application

1)高斥力型复合材料的制备采用在Ti-6A1-4V合金板间插入长度为100μm的钨长纤维网和Ti-6A1-4V粉末，在10-2 Pa真空下热压的方法制备sw /Ti-6A1-4V复合材料。完成了比上年密度更高的10cm×10cm广场复合材料。复合材料的评价试验(1)在复合材料的细微组织观察中，钨网与Ti-6Al-4V粉末通过热压紧密成型。结果表明，钨纤维保持了初始形态，没有发生变形，界面也很好。(2)在复合材料中插入一个钨网，通过材料厚度可以检测到较高的斥力。然后，随着板厚的变薄，允许恢复系数的上升。(3)从复合材料弯曲试验的观察结果来看，击穿发生在钨网附近。这表明在钨表面形成氧化膜的可能性。然而，为了有效地显示钨的拉伸性能，基体与钨之间的界面最好是松散的。3)有限元分析为获得W/Ti-6A1-4V复合材料在高尔夫球杆表面的最佳厚度，对钛合金与钨片复合后的模型进行了有限元分析。(1)对钨片和球杆表面的厚度进行了变化和分析。得到了位移的分布。(2)验证了板厚与挠度之间的线性函数关系。利用钨材料可以使高尔夫球杆表面变薄，并获得具有高斥力特性的高尔夫球杆头指标。

1) Manufacturing of high repulsion type composite materialsW/Ti-6A1-4V composite materials were manufactured by the method which Tungsten long fiber mesh of 100μm in length and Ti-6A1-4V powder were inserted between Ti-6A1-4V alloy plates and they were hot pressed in the vacuum of 10-2 Pa. The composite materials of 10cm×10cm square which were more high density than the previous year were completed.2) Evaluation test of composite materials(1) In the minuteness organization observation of composite materials, Tungsten mesh and Ti-6Al-4V powder were closely molded by hot-press. It was find that Tungsten fiber maintained initial shape without transforming and interface was also excellent.(2) The high repulsion power was detected by the material thickness when one Tungsten mesh was inserted in composite materials. Then, the rise of the restitution coefficient was admitted as plate thickness thinned.(3) From the results of observation in the bending test of composite materials, the breakdown occurred from the Tungsten mesh neighborhood. This suggested the possibility that the oxide film was formed on the Tungsten surface. To demonstrate the tensile ability of Tungsten effectively, however, it is preferable that the interface between matrix and Tungsten was loose. This was good condition for the restitution coefficient was improved3) FEM analysisTo obtain the optimum thickness of W/Ti-6A1-4V composite materials, when the materials were used for the golf club surface, the model which titanium alloy was compound by Tungsten sheet was analyzed by FEM.(1) The thickness of Tungsten sheet and golf club surface were changed and analyzed. The distributions of displacement were obtained.(2) The relationship of the linear function was approved between the plate thickness and the flexure. By using Tungsten, it was possible to make golf club face thin and the indicator to golf club head with high repulsion characteristic was obtained.