Author:
Micallef A.,Stiewe C.,Müller E.
Abstract
AbstractThe correlation of the electrical contact resistance measurement and microanalysis of the Field’s metal (FM)/Cr interface was used to determine the temperature-dependent reactions at the interface. Oxidation of Cr by oxygen contained in FM was identified through a sharp increase of the contact resistance around a certain temperature, above which the following resistance decrease was associated to a corrosion process. The corrosion–oxidation turning point was observed around 390 ± 1.7 °C. Cr saturation in FM combined with complete consumption of the oxygen contained in the FM induced a stabilization of the interface giving a specific contact resistance of about 30 µΩ·cm2.
Funder
DLR-DAAD scholarship
Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR)
Publisher
Springer Science and Business Media LLC