The Oxidation behavior of ODS iron aluminides
Authors:
- 1 December 1996
- journal article
- corrosion science-and-technology
- Published by Wiley in Materials and Corrosion
- Vol. 47 (12) , 663-674
Abstract
Oxide‐dispersed Fe‐28at.% Al‐2%Cr alloys were produced by a powder metallurgy technique followed by hot extrusion. A variety of stable oxides were added to the base alloy to assess the effect of these dopants on the oxidation behavior at 1200°C in air and O2. An Al2O3 dispersion flattened the α‐Al2O3 scale, but produced none of the other reactive element effects and had an adverse influence on the long‐term oxidation behavior. A Y2O3 dispersion improved the alumina scale adhesion relative to a Zr alloy addition at 1200 and 1300°C. However, the Y2O3 dispersion was not as effective in improving scale adhesion in Fe3Al as it is in FeCrAl. This inferior performance is attributed to a larger amount of interfacial void formation on ODS Fe3Al.Keywords
This publication has 34 references indexed in Scilit:
- Study of the Reactive Element Effect in ODS Iron-Base Alumina FormersMaterials Science Forum, 1997
- High-Temperature Oxidation Life Characteristics of ODS-Fe3AlMaterials Science Forum, 1997
- Spallation of Oxide Scales from NiCrAlY Overlay CoatingsMaterials Science Forum, 1997
- Experimental observations in support of the dynamic-segregation theory to explain the reactive-element effectOxidation of Metals, 1996
- The prediction of breakaway oxidation for alumina forming ODS alloys using oxidation diagramsMaterials and Corrosion, 1994
- Stress relaxation of low pressure plasma-sprayed NiCrAlY alloysMaterials Science and Engineering: A, 1993
- Effect of addition of molybdenum or niobium on creep-rupture properties of Fe3AlJournal of Materials Research, 1992
- A review of recent developments in Fe3Al-based alloysJournal of Materials Research, 1991
- The influence of reactive elements on The degradation of commercial Fe‐23Cr‐5Al alloys at high temperaturesMaterials and Corrosion, 1990
- Improvements in high temperature oxidation resistance by additions of reactive elements or oxide dispersionsPhilosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1980