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| Titre: | Analysis of a Directionally Solidified (DS) GTD-111 Turbine Blade Failure |
| Auteur(s): | Sabri, Khier
Gaceb, Mohamed
Si-Chaib, Mohamed Ouali |
| Mots-clés: | (DS) GTD-111 superalloy
Erosion
Pitting corrosion
Needle r-phase
c0- Ni3 (Al, Ti) precipitates |
| Date de publication: | 2020 |
| Editeur: | Springer |
| Collection/Numéro: | Journal of Failure Analysis and Prevention;Vol. 20 (2020);pp. 1162–1174 |
| Résumé: | The purpose of this paper is to clarify the impact of pitting corrosion and erosion on the directionally solidified (DS) GTD-111 turbine blade behavior. Moreover, the pitting corrosion and oxidation phenomena engendered inside cooling channels of the turbine blade are utterly highlighted. Other features such as the η (Ni3, Ti) platelets nucleation, needle σ-phase precipitation at the interface NiPtAl/(DS) GTD-111 substrate are exhibited as well. Finally, the different microstructural changes in (NiPtAl) coating strata against hot corrosion, oxidation and interaction with (DS) GTD-111 substrate are revealed and argued. |
| URI/URL: | https://doi.org/10.1007/s11668-020-00920-y
https://link.springer.com/article/10.1007/s11668-020-00920-y
http://dlibrary.univ-boumerdes.dz:8080/handle/123456789/7028 |
| Collection(s) : | Publications Internationales
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