球磨参数对Fe_(73.5)Cu_1Nb_3Si_(13.5)B_9产物微观结构的影响

研究了机械合金化法制备Fe_(73.5)Cu_1Nb_3Si_(13.5)B_9非晶先驱体的可行性,测试了不同球磨参数对Fe_(73.5)Cu_1Nb_3Si_(13.5)B_9球磨产物微观结构的影响。试验结果表明:转速、球磨时间、球磨方式、球料比和原料对产物的微观结构有明显的影响。高转速、连续球磨更有利于生成Fe_(73.5)Cu_1Nb_3Si_(13.5)B_9非晶相;使用Fe Nb粉和Fe B粉分别代替Nb粉和B粉不利于非晶相的生成;延长球磨时间不一定对非晶化有利,还有可能引入杂质;大的球料比更有利于非晶相的生成。

Effects of milling parameters on the microstructures of Fe73.5Cu1Nb3Si13.5B9 product

The preparation feasibility of Fe73.5Cu1Nb3Si13.5B9 amorphous precursor by mechanical alloying was studied in this paper, and the effects of different milling parameters on the microstructures of Fe73.5Cu1Nb3Si13.5B9 product were tested. The results show that, the effects of rotating speed, milling time, milling method, ball-to-powder ratio, and raw materials on the microstructures of the Fe73.5Cu1Nb3Si13.5B9 product are obvious. High speed and continuous milling are more conducive to the formation of Fe73.5Cu1Nb3Si13.5B9 amorphous phase; it is not conducive to the formation of amorphous phase by using FeNb and FeB powders instead of Nb and B powders, respectively; it is not always conducive to amorphization by prolonging milling time, and it may introduce the impurities; larger ball-to-powder ratio is more conducive to the formation of amorphous phase.