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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 12    No. 3    June 2002

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Transformations and phase relations in
 Nb-Ti-Si ternary system at 1373~1473K
WANG Ri-chu(王日初), LIU Chun-lei(柳春雷), JIN Zhan-peng(金展鹏)

Department of Materials Science and Engineering,
Central South University, Changsha 410083, China

Abstract:The isothermal sections of the Nb-Ti-Si ternary system at 1473K and 1373K were determined by means of diffusion triple technique and electron microprobe analysis. By analyzing the diffusion layers in the diffusion couples, the titanium silicides and niobium silicides forming in this system were identified. The results show that no ternary compounds formed in the Nb-Ti-Si ternary system at the test temperatures. The phase transformations occurring on cooling from 1473K to 1373K were discussed.

 

Key words: Nb-Ti-Si ternary system; diffusion triple technique; isothermal sections; phase transformations; phase relations

ISSN 1672-7029
CN 43-1423/U

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