Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7895389 | Corrosion Science | 2015 | 10 Pages |
Abstract
The oxidation of the Fe-5Cr-5Si and Fe-10Cr-5Si alloys has been examined under 1 and 10â20 atm O2 at 700 °C. In all cases the Cr additions improved the oxidation resistance of the Fe-5Si alloy by forming protective external scales rich in Cr- and Si-oxides, except for the oxidation of Fe-5Cr-5Si under the low oxygen pressure. Their scaling behavior has been interpreted using the kinetic diagrams of the Fe-Cr-Si system, predicted by calculating the critical concentrations of silicon and chromium needed to avoid their single or coupled internal oxidation on the basis of an extension of a criterion originally proposed by Wagner.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Q.Q. Guo, S. Liu, X.F. Wu, L.L. Liu, Y. Niu,