The effect of various oxide dispersions on the phase composition and morphology of Al2O3 scales grown on β-NiAl

B. A. Pint; M. Treska; L. W. Hobbs

doi:10.1007/BF01682369

The effect of various oxide dispersions on the phase composition and morphology of Al₂O₃ scales grown on β-NiAl

B. A. Pint, M. Treska, L. W. Hobbs

Materials Science and Technology Div

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

187 Scopus citations

Abstract

A series of oxide-dispersed Q-NiAl alloys were oxidized in order to explore the effect of various cation dopants on the θ-α phase transformation in the Al₂O₃ scale and the effect of phase composition on the scale microstructure. Larger ions such as Y, Zr, La, and Hf appeared to slow the θ- to α,-Al₂O₃, phase transformation, while a smaller ion, Ti, appeared to accelerate the transformation.

Original language	English
Pages (from-to)	1-20
Number of pages	20
Journal	Oxidation of Metals
Volume	47
Issue number	1-2
DOIs	https://doi.org/10.1007/BF01682369
State	Published - 1997

Keywords

Oxide dispersion
Phase transformation
Reactive elements
β-NiAl

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title = "The effect of various oxide dispersions on the phase composition and morphology of Al2O3 scales grown on β-NiAl",

abstract = "A series of oxide-dispersed Q-NiAl alloys were oxidized in order to explore the effect of various cation dopants on the θ-α phase transformation in the Al2O3 scale and the effect of phase composition on the scale microstructure. Larger ions such as Y, Zr, La, and Hf appeared to slow the θ- to α,-Al2O3, phase transformation, while a smaller ion, Ti, appeared to accelerate the transformation.",

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AU - Pint, B. A.

AU - Treska, M.

AU - Hobbs, L. W.

PY - 1997

Y1 - 1997

N2 - A series of oxide-dispersed Q-NiAl alloys were oxidized in order to explore the effect of various cation dopants on the θ-α phase transformation in the Al2O3 scale and the effect of phase composition on the scale microstructure. Larger ions such as Y, Zr, La, and Hf appeared to slow the θ- to α,-Al2O3, phase transformation, while a smaller ion, Ti, appeared to accelerate the transformation.

AB - A series of oxide-dispersed Q-NiAl alloys were oxidized in order to explore the effect of various cation dopants on the θ-α phase transformation in the Al2O3 scale and the effect of phase composition on the scale microstructure. Larger ions such as Y, Zr, La, and Hf appeared to slow the θ- to α,-Al2O3, phase transformation, while a smaller ion, Ti, appeared to accelerate the transformation.

KW - Oxide dispersion

KW - Phase transformation

KW - Reactive elements

KW - β-NiAl

UR - http://www.scopus.com/inward/record.url?scp=59349100088&partnerID=8YFLogxK

U2 - 10.1007/BF01682369

DO - 10.1007/BF01682369

M3 - Article

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JO - Oxidation of Metals

JF - Oxidation of Metals

IS - 1-2

ER -

The effect of various oxide dispersions on the phase composition and morphology of Al₂O₃ scales grown on β-NiAl

Abstract

Keywords

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