Prediction of the scatter of toughness values in heat affected zones
The aim of this study has been to quantify the different factors of scatter and their influence on global toughness measurements. For this purpose, a probabilistic analysis, called local approach, has been used in cleavage fracture. Mechanical properties and local criteria of the different zones (base metal and heat affected zones) were measured. A validation attempt was made on a simple weld configuration. A brittle zone of well-controlled dimensions was then produced with an electron beam in order to be intercepted by the crack front. Finally, a multipass weld was studied. Results show that it is possible to obtain a realistic prediction of the fracture toughness with the local approach.
Bibliographic Reference: EUR 14958 FR (1994) 105 pp., FS, ECU 13.50
ISBN: ISBN 92-826-7342-1
Record Number: 199410399 / Last updated on: 1994-11-28
Original language: fr
Available languages: fr