Microstructure characterization and hardness distribution of 13Cr4Ni multipass weld metal

Abstract : Multipass welding is a common method for fabrication and repairs of large industrial steel parts. In the hydroelectric industry these parts are commonly made with 13Cr4Ni steels that present outstanding performances. In this research the microstructures and crystallographic textures of a multipass weld have been studied. The microstructure was found to be complex and heterogeneous, consisting of several regions affected by adjacent weld passes. The study showed that austenite parent grains modification happened in areas close to the subsequent weld passes. However, parallel and low angle interface laths were observed inside martensite sub-blocks over different regions. The hardness profile was explained by overlaying the simple three regions heat affected zone. In some regions a tempering heat treatment effect was observed while in some other regions a double-quenching has happened.
Type de document :
Article dans une revue
Materials Characterization, Elsevier, 2016, 111, pp.128-136. 〈10.1016/j.matchar.2015.11.022〉
Liste complète des métadonnées

https://hal.univ-lorraine.fr/hal-01515199
Contributeur : Lem3 Ul <>
Soumis le : jeudi 27 avril 2017 - 09:59:03
Dernière modification le : lundi 19 mars 2018 - 22:38:02

Identifiants

Collections

Citation

Mohsen Mokhtabad Amrei, Hossein Monajati, Denis Thibault, Yves Verreman, Lionel Germain, et al.. Microstructure characterization and hardness distribution of 13Cr4Ni multipass weld metal. Materials Characterization, Elsevier, 2016, 111, pp.128-136. 〈10.1016/j.matchar.2015.11.022〉. 〈hal-01515199〉

Partager

Métriques

Consultations de la notice

83