According to the characters of transformations in solids , the ma process can be divided into three stages : physical fragment izing stage , diffusion and solid solution stage , and carbide forming stage 根據(jù)相變特點將fe - cr - c三元合金的機械合金化過程分為三個階段:物理粉碎階段、擴散固溶階段和碳化物析出階段。
Through x - ray diffraction ( xrd ) , transmission electron microscopy ( tem ) and mossbauer spectroscopy , evaluated the transformations in solids , the affect of the element and the changing of the grain and the magnetism 并利用x射線衍射( xrd ) 、透射電鏡( tem )和穆斯堡爾譜( mossbauer )等測試方法,對材料在ma過程中的固態(tài)相變、成分影響、晶粒以及磁性變化進(jìn)行了研究。