The Cr ― Ta ― C Melting Diagram in the (Cr) ― (Ta) ― (TaC) Region

被引：0
|
作者：
Tamara Ya. Velikanova
Anatolii A. Bondar
机构：
[1] Institute for Problems of Materials Science,National Academy of Sciences of Ukraine
来源：
Powder Metallurgy and Metal Ceramics | 2002年 / 41卷
关键词：
phase diagram; quasibinary eutectic; phase triangulation; eutectic; solidus; liquidus; melting diagram; chromium; tantalum; carbide;
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学科分类号：
摘要：
It has been found from an experimental study on alloys in the Cr ― Ta ― C system in the region of the (Cr) ― (Ta) ― (TaC) subsystem at melting (crystallization) temperatures that there are two nonvariant four-phase equilibria of congruent type: LE ↔ (Ta) + (Ta2C) + (TaCr2) at 1935°C and LE ↔ (TaC) + (Cr) + (TaCr2) at 1675°C; there is also one four-phase nonvariant equilibrium of incongruent transition type: LU + (Ta2C) ↔ (TaC) + (TaCr2) at 1943°C, and two nonvariant three-phase equilibria of congruent type: Le ↔ (Ta2C) + (TaCr2) at 1960°C and Le ↔ (TaC) + (Cr) at 1695°C. The phase diagram for the subsystem has been constructed in the form of projections of the solidus and liquidus surfaces, and a melting diagram has been constructed.
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页码：400 / 406
页数：6
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