| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7894805 | Corrosion Science | 2016 | 11 Pages |
Abstract
A Pt modified AlSiY coating was prepared on a Ni-based superalloy DD5 by electroplating and arc ion plating (AIP). The outer layer of the coating was mainly composed of β-(Ni,Pt)Al with dispersed CoWSi. The hot corrosion behaviour of Pt modified AlSiY coating at 900 °C was investigated. Compared to AlSiY coating, the Pt modified AlSiY coating provided improved hot corrosion resistance. The addition of Pt in AlSiY coating accelerated the phase transformation from θ-Al2O3 to α-Al2O3 in the initial stage, improved the scale adhesion and effectively suppressed the formation of internal oxides and internal sulphides.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
R.D. Liu, S.M. Jiang, H.J. Yu, J. Gong, C. Sun,