| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7896215 | Corrosion Science | 2013 | 8 Pages |
Abstract
Hot corrosion behaviour and related mechanism of an alumina-forming austenitic (AFA) stainless steel at 1173Â K in molten sodium sulphate were investigated. Compared with the Ni-based super-alloy K438, K417 and the commercial steel 316L, the current AFA steel exhibited a high hot-corrosion resistance with less internal sulphidation. It was found that a dense, continuous Al2O3 scale created at the early corrosion stage enabled formation of a compact Cr2O3 scale on it in the subsequent corrosion. Such dual layers effectively suppressed the sulphur penetration and protected the matrix from the hot corrosion.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Y.F. Yan, X.Q. Xu, D.Q. Zhou, H. Wang, Y. Wu, X.J. Liu, Z.P. Lu,