High-temperature oxidation of nickel-based alloys and estimation of the adhesion strength of resulting oxide layers
| Autor: | Djar Oquab, Elena Fedorova, S. A. Khudonogov, Daniel Monceau |
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| Přispěvatelé: | Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Siberian Federal University (RUSSIA) |
| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
Materials science
NiAl2O4 Matériaux Organic Chemistry Metallurgy Spinel Metals and Alloys Oxide chemistry.chemical_element Adhesion engineering.material Microstructure Isothermal process Adhesion Strength Surfaces Coatings and Films Nickel chemistry.chemical_compound Chemical engineering chemistry Residual stress Isothermal oxidation Materials Chemistry engineering Layer (electronics) Nickel-Based Alloys |
| Zdroj: | Protection of Metals and Physical Chemistry of Surfaces. |
| ISSN: | 2070-2051 |
| Popis: | The kinetics of isothermal oxidation (1100°C) of commercial nickel-based alloys with different content of sulfur (0.22–3.2 wt ppm) is studied. The adhesion strength in a metal/oxide system is estimated as a function of sulfur content and duration of high-temperature exposure. The scratch-test technique is proposed to quantitatively estimate the work of adhesion of resulting oxide films. It is found that the film microstructure is composed of an inner α-Al2O3 layer and an outer NiAl2O4 spinel layer, which are separated by discrete inclusions of TiO2. Residual stresses in the oxide film are experimentally determined by X-ray diffraction. spinel layer, which are separated by discrete inclusions of TiO2. Residual stresses in the oxide film are experimentally determined by X-ray diffraction |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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