Direct production of alloys based on titanium aluminides

被引：17
|
作者：
Haidar, J. [1 ]
Gnanarajan, S. [1 ]
Dunlop, J. B. [1 ]
机构：
[1] CSIRO Light Met Flagship Mat Sci & Engn, Lindfield, NSW 2070, Australia
来源：
INTERMETALLICS | 2009年 / 17卷 / 08期
关键词：
Reaction synthesis; Titanium aluminides; based on TiAl; based on Ti(3)Al; VALVES;
D O I：
10.1016/j.intermet.2009.02.005
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Direct production of alloys based on titanium aluminides has been demonstrated via two-step aluminothermic reduction of titanium tetrachloride (TiCl(4)). In the first step, TiCl(4) is reduced by aluminium to titanium trichloride (TiCl(3)) at a temperature below the boiling point of TiCl(4) and at 1 atm under argon. The resulting TiCl(3) intermediate product is then reacted with aluminium at temperatures up to around 1000 degrees C, leading to synthesis of a Ti-Al alloy powder. In addition, alloying additives such as Nb, Cr, Mo and C have also been included in various concentrations. Crown Copyright (C) 2009 Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：651 / 656
页数：6
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