(1. 北京科技大學(xué) 材料學(xué)院， 北京 100083；
2. 鄭州工業(yè)大學(xué) 材料中心， 鄭州 450002；
3. 北京有色金屬研究總院 復(fù)合材料中心， 北京 100088)
摘 要: 利用SEM，XRD，TEM等手段對(duì)原位反應(yīng)生成TiC粒子的噴射沉積Al-8Fe-1.3V-1.7Si合金的顯微組織進(jìn)行了分析與研究，并對(duì)合金機(jī)械性能進(jìn)行了測(cè)試。結(jié)果表明，TiC粒子的生成對(duì)合金的顯微組織有一定的細(xì)化作用，并增加了彌散強(qiáng)化相的總體積分?jǐn)?shù)，從而導(dǎo)致合金的綜合性能有了一定的提高。
關(guān)鍵字: 噴射沉積； 原位反應(yīng)； 快速凝固
properties of spray formed Al-8Fe-1.3V-1.7Si alloy
（1. Department of Materials Science and Technology,
University of Science and Technology Beijing, Beijing 100083, P.R.China；
2. Research Center for Materials,
Zhengzhou University of Technology,Zhengzhou 450002, P.R.China;
3. General Research Institute for Nonferrous Metals, Beijing 100088, P.R.China）
Abstract:The effects of TiC particle formed by in-situ reaction on the microstructures of spray formed Al-8Fe-1.3V-1.7Si alloys were studied by means of XRD, TEM and SEM. The properties of the alloys after hot extrusion were also tested. The forming of TiC particles refines the second phases and the matrix grains, and increases the volume fraction of the reinforced phases. As a result, the comprehensive properties of the alloys are significantly increased.
Key words: spray forming; in-situ reaction; rapid solidification
