[article]
| Titre : |
Internal surface protection of gas turbine blade by Si-aluminide coating |
| Type de document : |
texte imprimé |
| Auteurs : |
A. Firouzi, Auteur ; K. Shirvani, Auteur |
| Année de publication : |
2011 |
| Article en page(s) : |
pp. 681–686 |
| Note générale : |
Génie Mécanique |
| Langues : |
Anglais (eng) |
| Mots-clés : |
Aluminide coating Blade Cooling passages Silicon Slurry |
| Index. décimale : |
620.1 Essais des matériaux. Défauts des matériaux. Protection des matériaux |
| Résumé : |
A laboratory-scale slurry silicoaluminizing process has been developed to apply coating into cooling passageways of a first-stage gas turbine blade. Analytical techniques for characterizing the coatings comprised optical microscopy, SEM, EDS, and XRD. The results of metallographic examinations demonstrated that acceptable coatings had been formed in almost all of the passageways. The amounts of Al and Si in the topcoat were found to be in the ranges of 24–26 wt% and 4.5–6 wt%, respectively. The heat treated coating consisted largely of β-NiAl phase as the coating matrix with uniform distribution of
|
| DEWEY : |
620.1 |
| ISSN : |
0947-5117 |
| En ligne : |
http://onlinelibrary.wiley.com/doi/10.1002/maco.201005854/abstract |
in Materials and corrosion > Vol. 62 N° 7 (Juillet 2011) . - pp. 681–686
[article] Internal surface protection of gas turbine blade by Si-aluminide coating [texte imprimé] / A. Firouzi, Auteur ; K. Shirvani, Auteur . - 2011 . - pp. 681–686. Génie Mécanique Langues : Anglais ( eng) in Materials and corrosion > Vol. 62 N° 7 (Juillet 2011) . - pp. 681–686
| Mots-clés : |
Aluminide coating Blade Cooling passages Silicon Slurry |
| Index. décimale : |
620.1 Essais des matériaux. Défauts des matériaux. Protection des matériaux |
| Résumé : |
A laboratory-scale slurry silicoaluminizing process has been developed to apply coating into cooling passageways of a first-stage gas turbine blade. Analytical techniques for characterizing the coatings comprised optical microscopy, SEM, EDS, and XRD. The results of metallographic examinations demonstrated that acceptable coatings had been formed in almost all of the passageways. The amounts of Al and Si in the topcoat were found to be in the ranges of 24–26 wt% and 4.5–6 wt%, respectively. The heat treated coating consisted largely of β-NiAl phase as the coating matrix with uniform distribution of
|
| DEWEY : |
620.1 |
| ISSN : |
0947-5117 |
| En ligne : |
http://onlinelibrary.wiley.com/doi/10.1002/maco.201005854/abstract |
|
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