Liquid-solid phase equilibria in metal-rich Hf-Ti-Si alloys

Bernard P. Bewlay; Melvin R. Jackson; Ying Yang; Y. Austin Chang

Liquid-solid phase equilibria in metal-rich Hf-Ti-Si alloys

Bernard P. Bewlay, Melvin R. Jackson, Ying Yang, Y. Austin Chang

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

Abstract

A range of metal-rich Hf-Ti-Si alloys with Si concentrations up to 35.0 at.% was directionally solidified. Liquid - solid phase equilibria in these alloys have been investigated using scanning electron microscopy, X-ray diffraction, and electron beam microprobe analysis. Four phases were identified: (Hf, Ti)₅Si₃, Hf(Ti)2Si, b(Hf, Ti, Si), and a(Hf, Ti, Si). Microstructural and microchemical evidence provided a clear definition of the Hf-Ti-Si liquidus surface at the metal-rich end and indicated the existence of the invariant reaction:.

Original language	English
Pages (from-to)	99-106
Number of pages	8
Journal	Zeitschrift fuer Metallkunde/Materials Research and Advanced Techniques
Volume	98
Issue number	2
State	Published - Feb 2007
Externally published	Yes

Keywords

Hf-Ti-Si
Liquidus projection
Nb-silicide composites
Phase equilibria
Solidification

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title = "Liquid-solid phase equilibria in metal-rich Hf-Ti-Si alloys",

abstract = "A range of metal-rich Hf-Ti-Si alloys with Si concentrations up to 35.0 at.% was directionally solidified. Liquid - solid phase equilibria in these alloys have been investigated using scanning electron microscopy, X-ray diffraction, and electron beam microprobe analysis. Four phases were identified: (Hf, Ti)5Si3, Hf(Ti)2Si, b(Hf, Ti, Si), and a(Hf, Ti, Si). Microstructural and microchemical evidence provided a clear definition of the Hf-Ti-Si liquidus surface at the metal-rich end and indicated the existence of the invariant reaction:.",

keywords = "Hf-Ti-Si, Liquidus projection, Nb-silicide composites, Phase equilibria, Solidification",

author = "Bewlay, {Bernard P.} and Jackson, {Melvin R.} and Ying Yang and {Austin Chang}, Y.",

year = "2007",

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language = "English",

volume = "98",

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journal = "Zeitschrift fuer Metallkunde/Materials Research and Advanced Techniques",

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T1 - Liquid-solid phase equilibria in metal-rich Hf-Ti-Si alloys

AU - Bewlay, Bernard P.

AU - Jackson, Melvin R.

AU - Yang, Ying

AU - Austin Chang, Y.

PY - 2007/2

Y1 - 2007/2

N2 - A range of metal-rich Hf-Ti-Si alloys with Si concentrations up to 35.0 at.% was directionally solidified. Liquid - solid phase equilibria in these alloys have been investigated using scanning electron microscopy, X-ray diffraction, and electron beam microprobe analysis. Four phases were identified: (Hf, Ti)5Si3, Hf(Ti)2Si, b(Hf, Ti, Si), and a(Hf, Ti, Si). Microstructural and microchemical evidence provided a clear definition of the Hf-Ti-Si liquidus surface at the metal-rich end and indicated the existence of the invariant reaction:.

AB - A range of metal-rich Hf-Ti-Si alloys with Si concentrations up to 35.0 at.% was directionally solidified. Liquid - solid phase equilibria in these alloys have been investigated using scanning electron microscopy, X-ray diffraction, and electron beam microprobe analysis. Four phases were identified: (Hf, Ti)5Si3, Hf(Ti)2Si, b(Hf, Ti, Si), and a(Hf, Ti, Si). Microstructural and microchemical evidence provided a clear definition of the Hf-Ti-Si liquidus surface at the metal-rich end and indicated the existence of the invariant reaction:.

KW - Hf-Ti-Si

KW - Liquidus projection

KW - Nb-silicide composites

KW - Phase equilibria

KW - Solidification

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M3 - Article

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SN - 0044-3093

VL - 98

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EP - 106

JO - Zeitschrift fuer Metallkunde/Materials Research and Advanced Techniques

JF - Zeitschrift fuer Metallkunde/Materials Research and Advanced Techniques

IS - 2

ER -

Liquid-solid phase equilibria in metal-rich Hf-Ti-Si alloys

Abstract

Keywords

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