TY - JOUR
T1 - Nucleation of recrystallization in fine-grained materials
T2 - An extension of the Bailey-Hirsch criterion
AU - Favre, Julien
AU - Fabrègue, Damien
AU - Chiba, Akihiko
AU - Bréchet, Yves
N1 - Funding Information:
The authors acknowledge the Ministry of Education, Science and Culture of Japan and the Region Rhone-Alpes in France for their financial support. The work was performed within the framework of the Japanese-French joint laboratory ELyT lab.
PY - 2013/11/1
Y1 - 2013/11/1
N2 - A new criterion for nucleation in the case of dynamic recrystallization is proposed in order to include the contribution of the grain boundary energy stored in the microstructure in the energy balance. Due to the nucleation events, the total surface area of pre-existing grain boundaries decreases, leading to a nucleus size smaller than expected by conventional nucleation criteria. The new model provides a better prediction of the nucleus size during recrystallization of pure copper compared with the conventional nucleation criterion.
AB - A new criterion for nucleation in the case of dynamic recrystallization is proposed in order to include the contribution of the grain boundary energy stored in the microstructure in the energy balance. Due to the nucleation events, the total surface area of pre-existing grain boundaries decreases, leading to a nucleus size smaller than expected by conventional nucleation criteria. The new model provides a better prediction of the nucleus size during recrystallization of pure copper compared with the conventional nucleation criterion.
KW - Copper
KW - Dynamic recrystallization
KW - Nucleation
KW - Ultrafine grainedmicrostructure
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U2 - 10.1080/09500839.2013.833352
DO - 10.1080/09500839.2013.833352
M3 - Article
AN - SCOPUS:84885662944
SN - 0950-0839
VL - 93
SP - 631
EP - 639
JO - Philosophical Magazine Letters
JF - Philosophical Magazine Letters
IS - 11
ER -