Back to Search
Start Over
Preparation and hot corrosion behaviour of Pt modified AlSiY coating on a Ni-based superalloy.
- Source :
-
Corrosion Science . Mar2016, Vol. 104, p162-172. 11p. - Publication Year :
- 2016
-
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-Al 2 O 3 to α-Al 2 O 3 in the initial stage, improved the scale adhesion and effectively suppressed the formation of internal oxides and internal sulphides. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0010938X
- Volume :
- 104
- Database :
- Academic Search Index
- Journal :
- Corrosion Science
- Publication Type :
- Academic Journal
- Accession number :
- 112678001
- Full Text :
- https://doi.org/10.1016/j.corsci.2015.12.007