Investigation of phase equilibria in the Ce-Co-Fe system during solidification

被引：0

作者：

Fartushna, I. ^{[1
]}

Mardani, M. ^{[1
]}

Khvan, A. ^{[1
]}

Donkor, E. ^{[1
]}

Cheverikin, V. ^{[1
]}

Kondratiev, A. ^{[1
]}

Dinsdale, A. ^{[2
,3
]}

机构：

[1] Thermochemistry of Materials Scientific Research Centre, NUST MISIS, Leninsky prosp. 4, Moscow,119049, Russia

[2] Hampton Thermodynamics Ltd, Hampton, United Kingdom

[3] BCAST, Brunel University London, Uxbridge,UB8 2AD, United Kingdom

来源：

Journal of Alloys and Compounds | 2018年 / 735卷

关键词：

Number:; 11.7971.2017/6.7; Acronym:; Minobrnauka; Sponsor: Ministry of Education and Science of the Russian Federation;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Phase transformations in the Ce-Co-Fe ternary system have been studied using DTA, X-ray diffraction (XRD), scanning electron microscopy (SEM) and electron probe microanalysis (EPMA). No ternary compounds have been identified in this system. Liquidus and solidus projections and a Scheil diagram for solidification were constructed. At the solidus temperatures two continuous solid solutions form: (1) between isostoichiometric compounds Ce2Fe17 (Zn17Th2-type structure, hR57-R-3m) and Ce17Co2 (Th2Ni17-type structure, hP38-P63/mmc) and (2) between the Laves phases CeFe2 and CeCo2 (MgCu2-type structure, cF24-Fd-3m). Among the binary system-based phases, CeCo3 has the widest homogeneity region and dissolves up to 58 at% Fe at the solidus temperature. The homogeneity regions of the remaining phases are smaller. Five three-phase fields in the solidus surface result from four transition type and one eutectic invariant four-phase equilibria. © 2017 Elsevier B.V.

引用

页码：1682 / 1693

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