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

1)高排斥型复合材料的制备采用在Ti-6Al-4V合金板间插入100μm长的钨丝网片和Ti-6Al-4V粉末，在10-2Pa真空中热压的方法制备了W/Ti-6Al-4V复合材料。2)复合材料的评价试验(1)在复合材料的细微组织观察中，采用热压成形的方法对钨网和Ti-6Al-4V粉末进行了致密成型。结果表明，钨纤维在没有变形的情况下保持了初始的形状，界面也很好。(2)在复合材料中插入一个钨网时，材料的厚度可以检测到较大的排斥力。从复合材料弯曲试验的观察结果看，断裂发生在钨网附近。这表明在钨表面形成了氧化膜的可能性。然而，为了有效地证明钨的拉伸能力，最好是基体与钨之间的界面是松散的。3)有限元分析为了得到W/Ti-6Al-4V复合材料的最佳厚度，对W/Ti-6Al-4V复合材料用于高尔夫球杆表面时，用钨板复合钛合金的模型进行了有限元分析。(1)对钨板和高尔夫球杆表面厚度进行了变化分析。验证了板厚与挠度之间的线性函数关系。利用钨使高尔夫球杆面变薄成为可能，并获得了具有高排斥特性的高尔夫球杆头指示剂。

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.