High-temperature oxidation of nickel-based alloys and estimation of the adhesion strength of resulting oxide layers |
| |
Authors: | E N Fedorova D Monceau D Oquab S A Khudonogov |
| |
Affiliation: | 1.Siberian Federal University,Krasnoyarsk,Russia;2.Institute Carnot, CIRIMAT INPT/UPS/CNRS,ENSIACET,Toulouse,France |
| |
Abstract: | 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. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|