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

页码：651 / 656

页数：6

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