Characterization of the oxide-metal interface at the surface of a stainless steel

Abstract
The alloy-oxide interface from 20 at.% Cr-25 at.% Ni-1 at.% Nb stabilized steel oxidized at 850°C in CO2/l% CO has been examined on both sides using scanning Auger electron spectroscopy. The interface which was exposed using a sputter ion-plating technique consists of a silicon-rich chromium sesquioxide. When the oxide separates it does so at this interface within the silicon-rich layer.