MICROSTRUCTURE AND MECHANICAL PROPERTIES OF A EXTRUDED RAPIDLY SOLIDIFIED AIFeVSi ALLOY
来源期刊:中国有色金属学报(英文版)1995年第3期
论文作者:Zeng, Yuxiao Li, Songrui Li, Wenxian Wang, Richu Hu, Miao
文章页码:124 - 127
Key words:Rapidly solidified alloy; AlFeVSi alloy; Extrusion
Abstract: The microstructure and mechanical properties of a rapidly solidified AlFeVSi alloy after hot extrusion were studied by means of optical metallography, X-ray diffraction and transmission electron microscopy. Both hot extrusion and preheating prior to extruding bring about the change of the powder microstructure. During extrusion the precipitation and growth of Al12 (Fe, V)3Si dispersoids are accelerated and the inhomogeneity of the microstructure and properties exists distinctly along the extrusion direction. Extrusion stress might be responsible for it in addition to the temperature rise resulting from the deformation and friction heat.