采用纯金属镁粉和锌粉为原料,通过机械合金化制取了Mg-Zn非晶合金粉末。借助扫描电镜(SEM)、透射电镜(TEM)、X-射线衍射仪、能谱分析仪等手段研究了Mg_(50)Zn_(50)粉末的机械合金化非晶转变过程。本实验证明了镁基合金在负值混合焓较小的条件下,可以通过机械驱动力的作用而发生MA非晶反应,且非晶反应能力很强,Mg_(50)Zn_(50)在50h内完成了非晶转变。非晶反应可能与颗粒的变形细化过程有关,原子的界面扩散在非晶反应过程中起重要作用。 Using pure magnesium powder and zinc powder as raw materials, Mg-Zn amorphous alloy powder was prepared by mechanical alloying. The mechanical alloying transformation of Mg 50 Zn 50 powders was investigated by means of SEM, TEM, XRD and EDS. The experimental results show that under the condition of a small negative enthalpy of mixing, the MA amorphous reaction can occur through the action of mechanical driving force, and the ability of the amorphous reaction is very strong. When the Mg 50 Zn 50 is at 50h Completed within the amorphous transition. The amorphous reaction may be related to the grain refinement process. The interfacial diffusion of atoms plays an important role in the amorphous reaction.