An example of thermodynamical calculations applied to the study of the high temperature behaviour of Co-base superalloys strengthened by tantalum carbides - Archive ouverte HAL Accéder directement au contenu
Poster De Conférence Année : 2003

An example of thermodynamical calculations applied to the study of the high temperature behaviour of Co-base superalloys strengthened by tantalum carbides

Sylvain Michon
  • Fonction : Auteur
  • PersonId : 790739
  • IdRef : 115873139
Patrice Berthod
Lionel Aranda
Christophe Rapin
Renaud Podor
Pierre Steinmetz
  • Fonction : Auteur
  • PersonId : 1255517
  • IdRef : 070477876

Résumé

Cobalt-base superalloys are currently used as bulk materials for parts of aeronautic turbines. These latter support mechanical and thermal constraints. As the lifetime of these parts is limited, the aim of this work is to elaborate new alloys with higher solidus temperature and mechanical resistance. The best way to speed up development of new materials is thanks to thermodynamic simulations (Thermo-Calc), which will propose solutions to choose the microstructure and the alloy elaboration process. In our research fields, thermodynamic simulations allow: * the prediction of the equilibrium phases - to better select the chemical composition in order to obtained the desired phases (natures and quantities) - to prevent the risk of apparition of undesirable phases (s phase, TCP phases….) * the selection of highest refractory materials - to select an alloy with the solidus temperature as far as possible of the working temperature. * the evaluation of local melting temperature - to predict a possible minimizing of surface mechanical properties induced by the oxidation phenomena.

Domaines

Chimie Matériaux
Fichier principal
Vignette du fichier
008 POSTER Calphadxxxii2003LaMalbaie SM PB LA CR RP PS.pdf (1.01 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-04079345 , version 1 (24-04-2023)

Licence

Paternité - Pas d'utilisation commerciale - Pas de modification

Identifiants

  • HAL Id : hal-04079345 , version 1

Citer

Sylvain Michon, Patrice Berthod, Lionel Aranda, Christophe Rapin, Renaud Podor, et al.. An example of thermodynamical calculations applied to the study of the high temperature behaviour of Co-base superalloys strengthened by tantalum carbides. Calphad XXXII, May 2003, La Malbaie, Canada. ⟨hal-04079345⟩
1 Consultations
0 Téléchargements

Partager

Gmail Facebook X LinkedIn More