New Structural Insight into Interface-Controlled α–σ Phase Transformation in Fe-Cr Alloys - Université de Lorraine Accéder directement au contenu
Article Dans Une Revue Quantum Beam Science Année : 2018

New Structural Insight into Interface-Controlled α–σ Phase Transformation in Fe-Cr Alloys

Résumé

Synchrotron Laue microdiffraction scanning is used for the ex situ study of the body-centered, cubic-to-tetragonal phase transformation that occurs in equiatomic polycrystalline Fe-Cr alloys at temperatures between 550 and 800 °C. Grain orientation and grain strains were scanned with a micron step resolution after annealing at 700 °C for 12 h. Further microstructural details on the early stage of the transformation, and more particularly on the cubic-to-tetragonal phase interface, were achieved. Only the α and ordered σ phases were detected. The crystallographic relationships at the interface between the two phases did not follow the predicted rules; this result is discussed in relation to the measured microstrains

Dates et versions

hal-01987657 , version 1 (21-01-2019)

Identifiants

Citer

Wael Al Khoury, Nobumichi Tamura, Guillaume Geandier, Philippe Goudeau. New Structural Insight into Interface-Controlled α–σ Phase Transformation in Fe-Cr Alloys. Quantum Beam Science, 2018, 2 (4), pp.27. ⟨10.3390/qubs2040027⟩. ⟨hal-01987657⟩
44 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More