Diverse scaling behavior of the Ni-20Cr alloy

Anwar Ul-Hamid

doi:10.1016/S0254-0584(02)00448-0

Diverse scaling behavior of the Ni-20Cr alloy

Anwar Ul-Hamid^*

^*Corresponding author for this work

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85 Scopus citations

Abstract

A study was undertaken to investigate the isothermal oxidation behavior of the Ni-20Cr binary alloy at 750 and 1000 °C. The samples were exposed in air for 6 and 50 h. The oxide phases formed on the alloy were α-Cr₂O₃, NiCr₂O₄ and NiO. Microstructural examination of the alloy perpendicular to the plane of oxidation revealed co-lateral formation of diverse scale configuration at its surface. The thickness of the scale formed on the alloy surface varied from 1.5 to 18 μm. The protection imparted was due mainly to α-Cr₂O₃; however, various regions of the alloy surface constituted predominantly of NiCr₂O₄.

Original language	English
Pages (from-to)	135-142
Number of pages	8
Journal	Materials Chemistry and Physics
Volume	80
Issue number	1
DOIs	https://doi.org/10.1016/S0254-0584(02)00448-0
State	Published - 29 Apr 2003

Keywords

Microstructure
Ni-Cr
Oxidation
TEM

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics

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10.1016/S0254-0584(02)00448-0

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abstract = "A study was undertaken to investigate the isothermal oxidation behavior of the Ni-20Cr binary alloy at 750 and 1000 °C. The samples were exposed in air for 6 and 50 h. The oxide phases formed on the alloy were α-Cr2O3, NiCr2O4 and NiO. Microstructural examination of the alloy perpendicular to the plane of oxidation revealed co-lateral formation of diverse scale configuration at its surface. The thickness of the scale formed on the alloy surface varied from 1.5 to 18 μm. The protection imparted was due mainly to α-Cr2O3; however, various regions of the alloy surface constituted predominantly of NiCr2O4.",

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N2 - A study was undertaken to investigate the isothermal oxidation behavior of the Ni-20Cr binary alloy at 750 and 1000 °C. The samples were exposed in air for 6 and 50 h. The oxide phases formed on the alloy were α-Cr2O3, NiCr2O4 and NiO. Microstructural examination of the alloy perpendicular to the plane of oxidation revealed co-lateral formation of diverse scale configuration at its surface. The thickness of the scale formed on the alloy surface varied from 1.5 to 18 μm. The protection imparted was due mainly to α-Cr2O3; however, various regions of the alloy surface constituted predominantly of NiCr2O4.

AB - A study was undertaken to investigate the isothermal oxidation behavior of the Ni-20Cr binary alloy at 750 and 1000 °C. The samples were exposed in air for 6 and 50 h. The oxide phases formed on the alloy were α-Cr2O3, NiCr2O4 and NiO. Microstructural examination of the alloy perpendicular to the plane of oxidation revealed co-lateral formation of diverse scale configuration at its surface. The thickness of the scale formed on the alloy surface varied from 1.5 to 18 μm. The protection imparted was due mainly to α-Cr2O3; however, various regions of the alloy surface constituted predominantly of NiCr2O4.

KW - Microstructure

KW - Ni-Cr

KW - Oxidation

KW - TEM

UR - https://www.scopus.com/pages/publications/0037472167

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DO - 10.1016/S0254-0584(02)00448-0

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SN - 0254-0584

VL - 80

SP - 135

EP - 142

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

IS - 1

ER -

Diverse scaling behavior of the Ni-20Cr alloy

Abstract

Keywords

ASJC Scopus subject areas

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