Oxidation kinetics of microcrystalline Ni-11.5Cr-4.5Co-0.5Al superalloy sheet fabricated by Electron Beam Physical Vapor Deposition at 800 °C

Gang Zeng; Mingwei Li; Jiecai Han; Xiaodong He; Wenzheng Li

doi:10.1016/j.matlet.2007.05.036

Oxidation kinetics of microcrystalline Ni-11.5Cr-4.5Co-0.5Al superalloy sheet fabricated by Electron Beam Physical Vapor Deposition at 800 °C

Gang Zeng^*
, Mingwei Li
, Jiecai Han
, Xiaodong He
, Wenzheng Li

^*Corresponding author for this work

School of Astronautics

Harbin Institute of Technology
Harbin Institute of Technology
China Aviation Industry Corporation

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

13 Scopus citations

Abstract

Isothermal oxidation of microcrystalline Ni-11.5Cr-4.5Co-0.5Al superalloy sheet fabricated by Electron Beam Physical Vapor Deposition (EB-PVD) at 800 °C in air was investigated. The oxidation kinetics of microcrystalline Ni-11.5Cr-4.5Co-0.5Al superalloy sheet followed a parabolic power law at initial oxidation stage, and cubic power law for long oxidation terms. The fine oxide grains could be formed on microcrystalline superalloy surface. Taking the short circuit diffusion through grain boundaries into account, an oxidation kinetic with cubic power law was derived. The excellent results in agreement with the experimental data were obtained.

Original language	English
Pages (from-to)	289-292
Number of pages	4
Journal	Materials Letters
Volume	62
Issue number	2
DOIs	https://doi.org/10.1016/j.matlet.2007.05.036
State	Published - 31 Jan 2008

Keywords

Cubic power law
Microcrystalline alloy
Oxidation kinetics

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10.1016/j.matlet.2007.05.036

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title = "Oxidation kinetics of microcrystalline Ni-11.5Cr-4.5Co-0.5Al superalloy sheet fabricated by Electron Beam Physical Vapor Deposition at 800 °C",

abstract = "Isothermal oxidation of microcrystalline Ni-11.5Cr-4.5Co-0.5Al superalloy sheet fabricated by Electron Beam Physical Vapor Deposition (EB-PVD) at 800 °C in air was investigated. The oxidation kinetics of microcrystalline Ni-11.5Cr-4.5Co-0.5Al superalloy sheet followed a parabolic power law at initial oxidation stage, and cubic power law for long oxidation terms. The fine oxide grains could be formed on microcrystalline superalloy surface. Taking the short circuit diffusion through grain boundaries into account, an oxidation kinetic with cubic power law was derived. The excellent results in agreement with the experimental data were obtained.",

keywords = "Cubic power law, Microcrystalline alloy, Oxidation kinetics",

author = "Gang Zeng and Mingwei Li and Jiecai Han and Xiaodong He and Wenzheng Li",

year = "2008",

month = jan,

day = "31",

doi = "10.1016/j.matlet.2007.05.036",

language = "英语",

volume = "62",

pages = "289--292",

journal = "Materials Letters",

issn = "0167-577X",

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}

TY - JOUR

T1 - Oxidation kinetics of microcrystalline Ni-11.5Cr-4.5Co-0.5Al superalloy sheet fabricated by Electron Beam Physical Vapor Deposition at 800 °C

AU - Zeng, Gang

AU - Li, Mingwei

AU - Han, Jiecai

AU - He, Xiaodong

AU - Li, Wenzheng

PY - 2008/1/31

Y1 - 2008/1/31

N2 - Isothermal oxidation of microcrystalline Ni-11.5Cr-4.5Co-0.5Al superalloy sheet fabricated by Electron Beam Physical Vapor Deposition (EB-PVD) at 800 °C in air was investigated. The oxidation kinetics of microcrystalline Ni-11.5Cr-4.5Co-0.5Al superalloy sheet followed a parabolic power law at initial oxidation stage, and cubic power law for long oxidation terms. The fine oxide grains could be formed on microcrystalline superalloy surface. Taking the short circuit diffusion through grain boundaries into account, an oxidation kinetic with cubic power law was derived. The excellent results in agreement with the experimental data were obtained.

AB - Isothermal oxidation of microcrystalline Ni-11.5Cr-4.5Co-0.5Al superalloy sheet fabricated by Electron Beam Physical Vapor Deposition (EB-PVD) at 800 °C in air was investigated. The oxidation kinetics of microcrystalline Ni-11.5Cr-4.5Co-0.5Al superalloy sheet followed a parabolic power law at initial oxidation stage, and cubic power law for long oxidation terms. The fine oxide grains could be formed on microcrystalline superalloy surface. Taking the short circuit diffusion through grain boundaries into account, an oxidation kinetic with cubic power law was derived. The excellent results in agreement with the experimental data were obtained.

KW - Cubic power law

KW - Microcrystalline alloy

KW - Oxidation kinetics

UR - https://www.scopus.com/pages/publications/36248966220

U2 - 10.1016/j.matlet.2007.05.036

DO - 10.1016/j.matlet.2007.05.036

M3 - 文章

AN - SCOPUS:36248966220

SN - 0167-577X

VL - 62

SP - 289

EP - 292

JO - Materials Letters

JF - Materials Letters

IS - 2

ER -

Oxidation kinetics of microcrystalline Ni-11.5Cr-4.5Co-0.5Al superalloy sheet fabricated by Electron Beam Physical Vapor Deposition at 800 °C

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Keywords

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