Mechanical properties of thermally grown submicron oxide layers on a nickel-based superalloy

Joris Everaerts; Enrico Salvati; Hangyue Li; Wei Li; Alexander M. Korsunsky

doi:10.1016/j.corsci.2019.108388

Mechanical properties of thermally grown submicron oxide layers on a nickel-based superalloy

Joris Everaerts^*, Enrico Salvati, Hangyue Li, Wei Li, Alexander M. Korsunsky

^*Corresponding author for this work

Metallurgy and Materials

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

5 Citations (Scopus)

Abstract

Nickel-based superalloys are frequently used under operating conditions that lead to the formation of an oxide layer. In this study, the mechanical properties of such a submicron oxide scale formed on a nickel-based superalloy after oxidation at 650 °C were evaluated. Poisson's ratio and Young's modulus of the layered oxide structure were determined to be respectively 0.29, and 259 GPa. Depth-resolved residual stress profiling with nanoscale resolution showed large compressive residual stresses up to 3000 MPa in the oxide, with magnitude correlated to the oxide scale thickness. The relevance of the results to the crack initiation and growth behaviour is discussed.

Original language	English
Article number	108388
Journal	Corrosion Science
Volume	165
DOIs	https://doi.org/10.1016/j.corsci.2019.108388
Publication status	Published - 1 Apr 2020

Bibliographical note

Publisher Copyright:
© 2019 Elsevier Ltd

Keywords

(A) Nickel
(A) Superalloys
(B) FIB-DIC
(C) oxidation
(C) residual stress

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
General Materials Science

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title = "Mechanical properties of thermally grown submicron oxide layers on a nickel-based superalloy",

abstract = "Nickel-based superalloys are frequently used under operating conditions that lead to the formation of an oxide layer. In this study, the mechanical properties of such a submicron oxide scale formed on a nickel-based superalloy after oxidation at 650 °C were evaluated. Poisson's ratio and Young's modulus of the layered oxide structure were determined to be respectively 0.29, and 259 GPa. Depth-resolved residual stress profiling with nanoscale resolution showed large compressive residual stresses up to 3000 MPa in the oxide, with magnitude correlated to the oxide scale thickness. The relevance of the results to the crack initiation and growth behaviour is discussed.",

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T1 - Mechanical properties of thermally grown submicron oxide layers on a nickel-based superalloy

AU - Everaerts, Joris

AU - Salvati, Enrico

AU - Li, Hangyue

AU - Li, Wei

AU - Korsunsky, Alexander M.

PY - 2020/4/1

Y1 - 2020/4/1

N2 - Nickel-based superalloys are frequently used under operating conditions that lead to the formation of an oxide layer. In this study, the mechanical properties of such a submicron oxide scale formed on a nickel-based superalloy after oxidation at 650 °C were evaluated. Poisson's ratio and Young's modulus of the layered oxide structure were determined to be respectively 0.29, and 259 GPa. Depth-resolved residual stress profiling with nanoscale resolution showed large compressive residual stresses up to 3000 MPa in the oxide, with magnitude correlated to the oxide scale thickness. The relevance of the results to the crack initiation and growth behaviour is discussed.

AB - Nickel-based superalloys are frequently used under operating conditions that lead to the formation of an oxide layer. In this study, the mechanical properties of such a submicron oxide scale formed on a nickel-based superalloy after oxidation at 650 °C were evaluated. Poisson's ratio and Young's modulus of the layered oxide structure were determined to be respectively 0.29, and 259 GPa. Depth-resolved residual stress profiling with nanoscale resolution showed large compressive residual stresses up to 3000 MPa in the oxide, with magnitude correlated to the oxide scale thickness. The relevance of the results to the crack initiation and growth behaviour is discussed.

KW - (A) Nickel

KW - (A) Superalloys

KW - (B) FIB-DIC

KW - (C) oxidation

KW - (C) residual stress

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DO - 10.1016/j.corsci.2019.108388

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VL - 165

JO - Corrosion Science

JF - Corrosion Science

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ER -

Mechanical properties of thermally grown submicron oxide layers on a nickel-based superalloy

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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