Experimental investigation and thermodynamic calculation of the phase equilibria in the Co-Nb-Ta ternary system

L. Zhou; C. P. Wang; Y. Yu; X. J. Liu; H. Chinen; T. Omori; Ikuo Ohnuma; R. Kainuma; K. Ishida

doi:10.1016/j.jallcom.2010.10.058

Experimental investigation and thermodynamic calculation of the phase equilibria in the Co-Nb-Ta ternary system

L. Zhou, C. P. Wang, Y. Yu, X. J. Liu, H. Chinen, T. Omori, Ikuo Ohnuma, R. Kainuma, K. Ishida

ENG - Metallurgy

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

The isothermal sections of the Co-Nb-Ta ternary system at 900 °C, 1000 °C, 1100 °C, 1200 °C, 1300 °C have been experimentally determined by electron probe microanalysis (EPMA) and X-ray diffraction (XRD) techniques on the equilibrated alloys. On the basis of the experimental data investigated in the present work, the phase equilibria in the Co-Nb-Ta system has been thermodynamically assessed by using CALPHAD (CALculation of PHAse Diagrams) method, and a consistent set of the thermodynamic parameters leading to reasonable agreement between the calculated results and experimental data was obtained.

Original language	English
Pages (from-to)	1554-1562
Number of pages	9
Journal	Journal of Alloys and Compounds
Volume	509
Issue number	5
DOIs	https://doi.org/10.1016/j.jallcom.2010.10.058
Publication status	Published - 2011 Feb 3

Keywords

Metals and alloys
Phase diagrams
X-ray diffraction

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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abstract = "The isothermal sections of the Co-Nb-Ta ternary system at 900 °C, 1000 °C, 1100 °C, 1200 °C, 1300 °C have been experimentally determined by electron probe microanalysis (EPMA) and X-ray diffraction (XRD) techniques on the equilibrated alloys. On the basis of the experimental data investigated in the present work, the phase equilibria in the Co-Nb-Ta system has been thermodynamically assessed by using CALPHAD (CALculation of PHAse Diagrams) method, and a consistent set of the thermodynamic parameters leading to reasonable agreement between the calculated results and experimental data was obtained.",

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T1 - Experimental investigation and thermodynamic calculation of the phase equilibria in the Co-Nb-Ta ternary system

AU - Zhou, L.

AU - Wang, C. P.

AU - Yu, Y.

AU - Liu, X. J.

AU - Chinen, H.

AU - Omori, T.

AU - Ohnuma, Ikuo

AU - Kainuma, R.

AU - Ishida, K.

PY - 2011/2/3

Y1 - 2011/2/3

N2 - The isothermal sections of the Co-Nb-Ta ternary system at 900 °C, 1000 °C, 1100 °C, 1200 °C, 1300 °C have been experimentally determined by electron probe microanalysis (EPMA) and X-ray diffraction (XRD) techniques on the equilibrated alloys. On the basis of the experimental data investigated in the present work, the phase equilibria in the Co-Nb-Ta system has been thermodynamically assessed by using CALPHAD (CALculation of PHAse Diagrams) method, and a consistent set of the thermodynamic parameters leading to reasonable agreement between the calculated results and experimental data was obtained.

AB - The isothermal sections of the Co-Nb-Ta ternary system at 900 °C, 1000 °C, 1100 °C, 1200 °C, 1300 °C have been experimentally determined by electron probe microanalysis (EPMA) and X-ray diffraction (XRD) techniques on the equilibrated alloys. On the basis of the experimental data investigated in the present work, the phase equilibria in the Co-Nb-Ta system has been thermodynamically assessed by using CALPHAD (CALculation of PHAse Diagrams) method, and a consistent set of the thermodynamic parameters leading to reasonable agreement between the calculated results and experimental data was obtained.

KW - Metals and alloys

KW - Phase diagrams

KW - X-ray diffraction

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