Experimental study of the liquid-solid phase equilibria of the V-Cr-Si system

N. Chaia; N. David; G. C. Coelho; C. A. Nunes; S. Mathieu; M. Vilasi

doi:10.1016/j.jallcom.2014.07.026

Experimental study of the liquid-solid phase equilibria of the V-Cr-Si system

N. Chaia, N. David, G. C. Coelho, C. A. Nunes, S. Mathieu, M. Vilasi

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

Abstract

In the present work, liquid-solid phase equilibria of the V-Cr-Si phase diagram were experimentally studied. The samples were prepared by arc melting and as-cast microstructures were characterized by SEM, WDS and XRD. No new ternary phase was observed. Seven primary solidification regions were identified in these alloys: (V,Cr) solid solution, M₃Si, M₅Si ₃, MSi, M₆Si₅, MSi₂ and (Si). Microstructural observations suggest two class II invariant transformations associated to the phases Liquid, M₅Si₃, MSi₂ and MSi, and Liquid, M₅Si₃, MSi₂ and M ₆Si₅, respectively. The existence of a maximum on the monovariant line between Liquid, M₅Si₃ and MSi₂ was evidenced.

Original language	English
Pages (from-to)	882-885
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	615
DOIs	https://doi.org/10.1016/j.jallcom.2014.07.026
Publication status	Published - 5 Dec 2014
Externally published	Yes

Keywords

CALPHAD
Electron probe microanalysis
Liquidus projection
Phase diagram
Transition metal silicides

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10.1016/j.jallcom.2014.07.026

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title = "Experimental study of the liquid-solid phase equilibria of the V-Cr-Si system",

abstract = "In the present work, liquid-solid phase equilibria of the V-Cr-Si phase diagram were experimentally studied. The samples were prepared by arc melting and as-cast microstructures were characterized by SEM, WDS and XRD. No new ternary phase was observed. Seven primary solidification regions were identified in these alloys: (V,Cr) solid solution, M3Si, M5Si 3, MSi, M6Si5, MSi2 and (Si). Microstructural observations suggest two class II invariant transformations associated to the phases Liquid, M5Si3, MSi2 and MSi, and Liquid, M5Si3, MSi2 and M 6Si5, respectively. The existence of a maximum on the monovariant line between Liquid, M5Si3 and MSi2 was evidenced.",

keywords = "CALPHAD, Electron probe microanalysis, Liquidus projection, Phase diagram, Transition metal silicides",

author = "N. Chaia and N. David and Coelho, \{G. C.\} and Nunes, \{C. A.\} and S. Mathieu and M. Vilasi",

year = "2014",

month = dec,

day = "5",

doi = "10.1016/j.jallcom.2014.07.026",

language = "English",

volume = "615",

pages = "882--885",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

}

TY - JOUR

T1 - Experimental study of the liquid-solid phase equilibria of the V-Cr-Si system

AU - Chaia, N.

AU - David, N.

AU - Coelho, G. C.

AU - Nunes, C. A.

AU - Mathieu, S.

AU - Vilasi, M.

PY - 2014/12/5

Y1 - 2014/12/5

N2 - In the present work, liquid-solid phase equilibria of the V-Cr-Si phase diagram were experimentally studied. The samples were prepared by arc melting and as-cast microstructures were characterized by SEM, WDS and XRD. No new ternary phase was observed. Seven primary solidification regions were identified in these alloys: (V,Cr) solid solution, M3Si, M5Si 3, MSi, M6Si5, MSi2 and (Si). Microstructural observations suggest two class II invariant transformations associated to the phases Liquid, M5Si3, MSi2 and MSi, and Liquid, M5Si3, MSi2 and M 6Si5, respectively. The existence of a maximum on the monovariant line between Liquid, M5Si3 and MSi2 was evidenced.

AB - In the present work, liquid-solid phase equilibria of the V-Cr-Si phase diagram were experimentally studied. The samples were prepared by arc melting and as-cast microstructures were characterized by SEM, WDS and XRD. No new ternary phase was observed. Seven primary solidification regions were identified in these alloys: (V,Cr) solid solution, M3Si, M5Si 3, MSi, M6Si5, MSi2 and (Si). Microstructural observations suggest two class II invariant transformations associated to the phases Liquid, M5Si3, MSi2 and MSi, and Liquid, M5Si3, MSi2 and M 6Si5, respectively. The existence of a maximum on the monovariant line between Liquid, M5Si3 and MSi2 was evidenced.

KW - CALPHAD

KW - Electron probe microanalysis

KW - Liquidus projection

KW - Phase diagram

KW - Transition metal silicides

U2 - 10.1016/j.jallcom.2014.07.026

DO - 10.1016/j.jallcom.2014.07.026

M3 - Article

AN - SCOPUS:84905401242

SN - 0925-8388

VL - 615

SP - 882

EP - 885

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Experimental study of the liquid-solid phase equilibria of the V-Cr-Si system

Abstract

Keywords

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