Defects Detection in Welds Using Ultrasonic Analysis

Type : Publication
Auteur(s) :  Sonia Djili, Faiza Boukazouha, Rafik HALIMI, Ali BADIDI BOUDA
Année :  2006
Domaine : Physique
Revue : 13th International Congress on Sound and Vibration
Résumé en PDF :  (résumé en pdf)
Fulltext en PDF :  (.pdf)
Mots clés :  Non destructive testing, Ultrasonic Analysis, Weld

Résumé : 

In some austenitic stainless steel welds grains orientation cause deviation and splitting of the ultrasonic beam. It is especially true in the case of multipass welds when the remelting process after each pass causes complex solidification process. With these orientations we define a precise description of the heterogeneous and anisotropic material. Non destructive testing (NDT) is commonly used industrial method to evaluate the integrity ofindividual components. In service induced cracks such as fatigue and stress corrosioncracks can, if they are detected, be sized and monitored in order to postpone repairsor replacements.