机械合金化致二元过渡金属非晶态合金形成规律的探讨

运用Ｍｉｅｄｅｍａ参数和尺寸因子Ｒ分别构成Ｍｉｅｄｅｍａ参数坐标和三维化学坐标成功地研究机械合金化二元过渡金属非晶合金的形成规律。基于实验事实所确定的机械合金化二元非晶的形成条件分别是见原文，以上两判据区分机械合金化非晶态合金形成与否的准确度分别为８０％和８８％。从微观原子的相互作用以及固态反应非晶化热力学和动力学的角度分析了以上参数在描述机械合金化二元过渡族合金体系非晶形成规律的内在物理涵义以及与固态反应非晶化实现所需条件的联系。 关键词：

STUDY ON THE REGULARITY OF FORMATION OF THE BINARY AMORPHOUS ALLOYS OF TRANSITION METALS BY ME-CHANICAL ALLOYING

The regularities of formation of binary amorphous alloys of transition metals by mechanical alloying were studied successfully by the Miedema coordinates and the three chemical coondinates with the Miedema parameters, Based on egperimantal data the criteria of formation the binary amorphous alloys were defined as. The total accuracies for separating the amorphous alloys formed or not by mechanical alloying are 80% and 88%，respectively. The physics for describing the regularities for the binary amorphous alloys of transition metals by mechanical alloying, and the relationship between the regularities and necessary conditions for amor-phization by solid state reaction are discussed from the view points of interaction between atoms and thermodynamics and dynamics for amorphization by solid state reaction.