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首页> 外文会议>International Symposium on Metastable, Mechanically Alloyed and Nanocrystalline Materials(ISMANAM 2003); 20030824-20030828; Foz do Lguacu; BR >Al-Fe-X-Si (X = V or Nb) Alloys Powders Prepared by High Energy Milling in an Attritor Mill
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Al-Fe-X-Si (X = V or Nb) Alloys Powders Prepared by High Energy Milling in an Attritor Mill

机译：在磨机中通过高能研磨制备的Al-Fe-X-Si（X = V或Nb）合金粉末

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摘要

This paper presents the solid state interaction of an alloy, Al_(90.8)Fe_(6.2)(V or Nb)_(1.0)Si_(2.0) (at%), prepared by mechanical alloying elemental powders of Al, Fe, V or Nb and Si in a horizontal attritor mill. The powder mixture was attrition milled in an nitrogen atmosphere with 0,5% of polyethylene, speed of 1500 rpm ( rotation per minute), and milling time 1, 3, 5, 7, 10 hours. The powders milled for 10 hours were heat treated 1 hour at 300℃, 400℃ and 500℃. The evolution of the as milled powders size and shape with milling time was shown by laser difraction and scanning electron microscopy. The phases in the as milled and heated treated powders were determined by X-ray diffraction. New phases were detected after heat treating the milled powders: Al Nb_2 above 300℃ and Al_(12) (Fe, V or Nb)_3 Si above 400℃.
机译：本文介绍了通过机械合金化Al，Fe，V或Al元素粉末制备的合金Al_（90.8）Fe_（6.2）（V或Nb）_（1.0）Si_（2.0）（at％）的固态相互作用。卧式研磨机中的Nb和Si。将该粉末混合物在氮气氛中与0.5％的聚乙烯，1500rpm（每分钟的旋转速度）和1、3、5、7、10小时的研磨时间进行研磨。研磨10小时的粉末在300℃，400℃和500℃下热处理1小时。通过激光衍射和扫描电子显微镜观察了研磨后的粉末的尺寸和形状随研磨时间的变化。通过X射线衍射确定研磨和加热处理的粉末中的相。热处理后的粉末经过检测发现了新的相：高于300℃的Al Nb_2和高于400℃的Al_（12）（Fe，V或Nb）_3 Si。

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