OXIDATION RESISTANCE AND THERMAL STABILITY OF TI-AL-SI ALLOYS PRODUCED BY REACTIVE SINTERING

被引：0

作者：

Novak, Pavel ^{[1
]}

Prusa, Filip ^{[1
]}

Serak, Jan ^{[1
]}

Vojtech, Dalibor ^{[1
]}

Michalcova, Alena ^{[1
]}

机构：

[1] Inst Chem Technol, Dept Met & Corros Engn, CR-16628 Prague 6, Czech Republic

来源：

METAL 2009, CONFERENCE PROCEEDINGS | 2009年

关键词：

titanium aluminide; titanium silicide; reactive sintering; powder metallurgy; oxidation resistance; thermal stability; TITANIUM;

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Alloys formed by Ti-Al intermediary phases have low density and very good high-temperature oxidation resistance. Further improvement of high-temperature behaviour can be achieved by a suitable addition of silicon. In this work, Ti-Al-Si alloys containing 10 - 20 wt. % of both silicon and aluminium produced by a reactive sintering technology were tested. Oxidation tests were carried out at 800 - 10000 degrees C in air. The oxidation rate was determined from weight gains caused by oxide formation. Microstructure and phase composition of the oxide layers were studied. Microstructure and hardness changes after various annealing durations were described.

引用

页码：233 / 237

页数：5

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