Thermodynamics of yttrium and oxygen in molten Ti, Ti3Al, and TiAl

被引：36
作者：
Kobayashi, Y [1 ]
Tsukihashi, F [1 ]
机构：
[1] Univ Tokyo, Dept Met, Tokyo 1138656, Japan
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE | 1998年 / 29卷 / 05期
关键词：
D O I：
10.1007/s11663-998-0072-4
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The solubility of yttrium and oxygen in molten Ti, Ti3Al, and TiAl equilibrated with solid Y2O3 has been measured from 1793 to 2093 K, The equilibrium constant of reaction Y2O3 (s) = 2 (Y) under bar (mass pct) + 3 (O) under bar (mass pct) and the interaction parameter between yttrium and oxygen in molten metals were determined. The standard Gibbs energy of reaction was also obtained as a function of temperature. The deoxidation of Ti, Ti3Al, and TiAl by using yttrium-based fluxes is discussed and the deoxidation ability of yttrium is compared with that of calcium.
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页码：1037 / 1042
页数：6
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