机械合金化制备Fe-Co-C系非晶合金粉末

采用机械合金化方法制备出Fe—Co—C系的非晶态合金粉末。在球磨过程对合金粉末进行取样，通过X射线衍射的分析，发现合金粉末在球磨15～20h后开始部分非晶化，随球磨时间的增加晶粒尺寸减小。研究结果表明：在Fe—Co合金中加入C可促使其形成非晶；在一定的机械合金化条件下可获得Fe40Co40C20和Fe60Co20C20的非晶粉末，在球磨过程中，通过控制合理的球磨时间，可制备一系列晶粒尺寸的非晶材料。

Preparation of Fe-Co-C Amorphous Powders by Mechanical Alloying

In this article, a series of Fe - Co - C amorphous powders can be made by mechanical alloying. The samples of alloy powders were collected during the ball milling process. By X - ray diffraction it was observed that part of the alloy powders starts to become amorphous phase after milling ball 15 to 20 hours and the crystal grain sizes of the alloy powders became smaller with the increasing of milling-time. The conclusion of the studies reveals that the formation of amorphous material can be promoted by adding C into Fe - Co alloy. Fe60Co20C20 and Fe40 Co40 C20 amorphous powders can be made under certain mechanical alloying conditions. A series of amorphous materials with different grain sizes can be made if the time of milling ball is controlled properly during the process of milling ball.