A phase-field investigation of recrystallization boundary migration into heterogeneous deformation energy fields: Effects of dislocation boundary sharpness

R. Li*, V. Yadav, N. Moelans, Y. Zhang, D. Juul Jensen

*Corresponding author for this work

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Abstract

The migration of recrystallization boundaries into spatially varying deformation energy fields are simulated based on a two-dimensional phase-field model. The energy fields are chosen as idealized versions of deformation microstructures subdivided by two sets of intersecting geometrically necessary dislocation boundaries (GNBs), and effects of the sharpness of the GNBs are investigated. The simulations show that the shape of the recrystallizing grain as well as the recrystallization kinetics are considerably affected by the wall characteristics of the GNBs. Recrystallization occurs faster in the deformed matrix with “sharper” walls. The simulation results highlight the importance of the deformation microstructure characteristics on the recrystallization kinetics, and as the deformation microstructures depend on the initial grain orientations, the results also indicate tight relations between initial, deformation and recrystallization textures
Original languageEnglish
Article number012013
JournalI O P Conference Series: Materials Science and Engineering
Volume1121
Issue number1
Number of pages6
ISSN1757-8981
DOIs
Publication statusPublished - 2021
Event19th International Conference on Textures of Materials (ICOTOM 19) - Virtual conference
Duration: 1 Mar 20214 Mar 2021

Conference

Conference19th International Conference on Textures of Materials (ICOTOM 19)
LocationVirtual conference
Period01/03/202104/03/2021

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