Production of titanium matrix composites reinforced with SiC particles

被引：111

作者：

Poletti, C. ^{[1
]}

Balog, M. ^{[2
]}

Schubert, T. ^{[3
]}

Liedtke, V. ^{[4
]}

Edtmaier, C. ^{[5
]}

机构：

[1] Vienna Univ Technol, Inst Mat Sci & Technol, A-1040 Vienna, Austria

[2] Slovak Acad Sci, Inst Mat & Machine Mech, Bratislava 83102, Slovakia

[3] Fraunhofer Inst Mfg & Adv Mat, Branch Lab Dresden, D-01277 Dresden, Germany

[4] Austrian Res Ctr GmbH, Dept Composites Aerosp Applicat, A-2444 Seibersdorf, Austria

[5] Vienna Univ Technol, Inst Chem Technol & Analyt, A-1060 Vienna, Austria

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 2008年 / 68卷 / 09期

关键词：

metal-matrix composites (MMCs); interface; extrusion; powder processing; sintering;

D O I：

10.1016/j.compscitech.2008.03.018

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

Titanium alloys exhibit high specific strength and stiffness that fit structural applications demanding lightweight construction. Ceramic reinforcements can improve specific strength and stiffness, and also the wear resistance. Higher specific strength and Young's modulus is expected when reinforcing titanium by SiC particles compared to other reinforcements. The production of a SiC reinforced titanium alloy using conventional powder metallurgy methods (PM) yields porosity and silicides formation. PM processing methods are discussed in this work: equal channel angular pressing, Spark plasma sintering, sintering using an induction oven and hot extrusion. Consolidation time and temperature are considerably decreased avoiding the silicide formation, while consolidation loads were increased to obtain a denser Ti-SiC composite. Hot extruded samples show the best results, without any reaction zone and a density near to the theoretical one. (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：2171 / 2177

页数：7

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