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The Adherence of Nickel Oxide on Nickel During High-Temperature Oxidation

Published online by Cambridge University Press:  21 February 2011

Yung Y. Liu  and
K. Natesan
Yung Y. Liu
Affiliation:
Materials and Components Technology Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439
K. Natesan
Affiliation:
Materials and Components Technology Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439
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Abstract

A combined experimental/analytical study is being conducted to investigate the fundamental nature of adherence of oxide scales formed on metals during high-temperature oxidation. Isothermal oxidation experiments were conducted on high-purity nickel (Ni 270) specimens in air at temperatures of up to 1200°C. None of the experiments resulted in physical separation of nickel oxide scales from the nickel substrate, even though substantial amounts of porosity were found in scales close to the scale/matal interfaces. The results of numerical and analytical calculations of stresses in the NiO/Ni system suggest that metal and oxide plasticities play a role in the experimental observations.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 119: Symposium F – Adhesions in Solids , 1988 , 213
Copyright
Copyright © Materials Research Society 1988

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