Numerical prediction of residual stresses induced by multi-pass GTA welding of martensitic steel X10CrMoVNb9-1 - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2008

Numerical prediction of residual stresses induced by multi-pass GTA welding of martensitic steel X10CrMoVNb9-1

René Billardon
  • Fonction : Auteur
  • PersonId : 831641

Résumé

The nominal temperature in pressure vessels of future nuclear reactors -or so-called Very High Temperature Reactors using gas coolant at low ressure- should be around 450\degres C. Because of its microstructural stability at such a temperature, X10CrMoVNb9-1 martensitic steel -also known as ASTM A387 or T91 steel- is considered as a promising candidate material for these structures. Since, the Manufacturing process of such thick pressure vessels will most probably involve GTA multi-pass Welding, different studies are presently in progress in different Laboratories to develop reliable tools for the failure assessment of multi-pass weld joints in structures made of X10CrMoVNb9-1 martensitic steel. The work presented herein is part of a study the aim of which is to develop finite element simulations of TIG multi-pass welding to predict the residual stresses induced by the process in the vicinity of welded joints in thick structures made of X10CrMoVNb9-1 martensitic steel. Since the accuracy of such complex thermo-metallo-mechanical finite element analyses strongly depends on many inputs, experiments have been designed to valide the numerical tool that is currently in development.

Domaines

Matériaux
Fichier principal
Vignette du fichier
cfm07-en.pdf (1.21 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-00437212 , version 1 (30-11-2009)

Identifiants

  • HAL Id : hal-00437212 , version 1

Citer

Guilhem Roux, René Billardon. Numerical prediction of residual stresses induced by multi-pass GTA welding of martensitic steel X10CrMoVNb9-1. 18ème Congrès Français de Mécanique (Grenoble 2007), Aug 2007, France. pp.CFM2007-1198. ⟨hal-00437212⟩
269 Consultations
55 Téléchargements

Partager

Gmail Facebook X LinkedIn More