【摘要】 采用QM-BP行星式球磨机,在高纯氩气保护的气氛下,选择Ni、Ti、Nb三种高纯度的金属粉末,利用球磨法制备Ni基非晶合金粉末.用X-射线衍射(XRD)和扫描电镜(SEM)对形成的非晶合金粉末进行分析,可以证实获得成分均匀,形貌统一的微米量级Ni48Ti48Nb4的非晶粉末.将得到的非晶合金粉末进一步通过热压法压制,研究在此过程中的粘度和热量变化,获得其在不同温度特别是过冷液态的形变能力,得到粉末非晶合金制备的最佳温度区间.更多还原

【Abstract】 Amorphous binary Ni、Ti、Nb alloy powders are synthesized by high energy ball milling the elemental powders at room temperature.The formation of amorphation has been studied by X-Ray diffraction(XRD)and scanning electron microscopy(SEM).The bulk amorphous alloys through the hot pressing of amorphous powder in supercooled liquid region are got,The changes of viscosity and heat during hot pressing are also studied.更多还原