Influence of minor alloying elements on the initial stages of oxidation of austenitic stainless steel materials
- 1 August 2008
- journal article
- research article
- Published by Wiley in Surface and Interface Analysis
- Vol. 40 (8) , 1149-1156
Abstract
Surface oxidation of Fe-19Cr-17Ni, Fe-19Cr-18Ni-1Al and TiC-enriched Fe-19Cr-18Ni-1Al alloys was investigated by photoelectron spectroscopy (PES). The experiments were conducted at 323 K in pure O2 (2.7 × 10−6 mbar). Composition and morphology of the nanoscale surface oxides were determined quantitatively by inelastic electron background analysis. Moreover, use of synchrotron radiation facilities were necessary to obtain improved sensitivity for studying minor alloying elements such as Al and Si. The results indicate oxygen-induced segregation of Al, which significantly hinders the oxidation of the major alloying elements Fe and Cr. Ti remains in its inert carbide form. The relative concentration of Fe within the oxide layer was found to increase with the oxide-layer thickness, indicating greater mobility of Fe relative to other alloying elements.Keywords
This publication has 25 references indexed in Scilit:
- Development and characterization of sol–gel silica–alumina composite coatings on AISI 316L for implant applicationsSurface and Coatings Technology, 2007
- Creep-Resistant, Al 2 O 3 -Forming Austenitic Stainless SteelsScience, 2007
- Transition Metal Oxides: Extra Thermodynamic Stability as Thin FilmsPhysical Review Letters, 2006
- Evaluation of mechanical properties and biological response of an alumina-forming Ni-free ferritic alloyBiomaterials, 2005
- An accurate semi‐empirical equation for sputtering yields I: for argon ionsSurface and Interface Analysis, 2005
- Stainless steel optimization from quantum mechanical calculationsNature Materials, 2002
- Growth of thin, crystalline oxide, nitride and oxynitride films on metal and metal alloy surfacesSurface Science Reports, 2000
- Calculations of electron inelastic mean free paths. V. Data for 14 organic compounds over the 50–2000 eV rangeSurface and Interface Analysis, 1994
- Films formed on well-defined stainless steel single-crystal surfaces in oxygen and water: studies of the (111) plane by LEED, Auger and XPSCorrosion Science, 1985
- The Composition of the Surface During Passivation of Stainless SteelsCorrosion, 1982