机械合金化制备Ni－Mo非晶合金的研究

INVESTIGATION ON Ni-Mo AMORPHOUS ALLOY PREPARED BY MECHANIAL ALLOYING

本文采用机械合金化方法制备了Ｎｉ＿ｘＭｏ＿（１ＯＯ－ｘ）（Ｘ＝８０，７０，６２，５５，４０）合金，并采用Ｘ射线衍射研究了球磨过程中粉末结构的变化。结果表明，当Ｘ≥７０时得到了镍的固溶体，在Ｘ≤６２时得到了部分非晶合金。通过ＤＳＣ差热分析研究了Ｎｉ＿（６２）Ｍｏ＿（３８）部分非晶合金的晶化行为，并从理论上探讨了该合金体系形成完全非晶合金的可能性。

The paper has described the preparation of Ni_xMo_(100-x). (X= 80, 70, 62, 55, and 40)alloy using mechanical alloying process and studied the change of powder structure during the process of ball milling by using X-ray diffraction. The results have shown that in case of X≥70 the nickel solid solution was obtained, while in case of X≤62 a partial amorphous alloy was obtained. The crystallizing behaviour of partial amorphous alloy Ni_(62)Mo_(38) has been analysed through DSC differential thermal analysis and the possibility of forming complete amorphous alloy from the alloy system has been theoretically discussed.