Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1585185 | Materials Science and Engineering: A | 2006 | 6 Pages |
Abstract
In this work, the oxidation of Ni70Cr30 alloy has been produced at a temperature of 900 °C in air. The parabolic behaviour of oxidation was established ex situ and the corresponding kinetic constant was deduced. Microscopic observations have shown that chromia grain size does not exceed 1 μm. Raman spectroscopy was used to determine stresses in chromia (Cr2O3) layers. Stresses are found to be compressive and increase with the chromia thickness before reaching a “plateau” at −2.9 GPa. The stress relaxation phenomenon discussed here takes into account theoretical modelling that can be found in literature.
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Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
M. Kemdehoundja, J.F. Dinhut, J.L. Grosseau-Poussard, M. Jeannin,