Phase equilibria in the Ni-Cr-Ti system at 850°C

被引：16
|
作者：
van Beek, JA [1 ]
Kodentsov, AA [1 ]
van Loo, FJJ [1 ]
机构：
[1] Eindhoven Univ Technol, Lab Solid State & Mat Chem, NL-5600 MB Eindhoven, Netherlands
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 1998年 / 270卷 / 1-2期
关键词：
phase equilibria; diffusion couples; nickel; chromium; titanium;
D O I：
10.1016/S0925-8388(98)00505-2
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：
The isothermal cross-section through the ternary phase diagram Ni-Cr-Ti at 850 degrees C was constructed by means of diffusion couples and equilibrated alloys. No ternary phases exist in the system at this temperature. The topology of the isotherm is largely determined by the presence of the TiCr2-Laves phases which are in equilibrium with the binary Ti-Ni intermetallics. About 10 at.% of Ni can be dissolved in the hexagonal P-TiCr2 at 850 degrees C, and the solubility of nickel in cubic alpha-TiCr2 is approximately 4 at.%. A small amount of nickel or chromium increases the stability of the b.c.c. beta-Ti structure. At this temperature the beta-Ti(Ni)-based solid solution can dissolve up to 18 at.% of Cr. (C) 1998 Elsevier Science S.A.
引用
收藏
页码：218 / 223
页数：6
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