[en] In this investigation, the effect of an isothermal heat treatments at 300 °C on microstructure evolution and mechanical properties of the welded pipeline A970 duplex stainless steel have been studied by optical microscopy, scanning electron microscopy, energy dispersive spectroscopy analysis, X-ray diffraction, and hardness measurements. It was found that the fusion zone is different from the heat affected zone and also from the base metal. The quantity of the ferritic phase decreased in the melting zone and was partially restored after the heat treatment, which has an influence on the hardness of the melting zone.
Research center :
CRIM - Ingénierie des matériaux
Disciplines :
Materials science & engineering
Author, co-author :
Boumerzoug, Zakaria; Université de Biskra
Gheriani, Younes; Université de Biskra
Delaunois, Fabienne ; Université de Mons - UMONS > Faculté Polytechnique > Service de Métallurgie
Language :
English
Title :
Effect of Heat Treatment on Microstructural Evolution and Mechanical Properties of a Welded Pipeline A970 Duplex Stainless Steel
Publication date :
25 August 2022
Journal title :
Research & Development in Material science
ISSN :
2576-8840
Publisher :
Crimson Publishers, New York, United States
Volume :
17
Issue :
4
Pages :
1998-2003
Peer reviewed :
Peer reviewed
Research unit :
F601 - Métallurgie
Research institute :
R400 - Institut de Recherche en Science et Ingénierie des Matériaux
