A phase-field simulation of nucleation from subgrain and grain growth in static recrystallization

研究成果: Conference contribution

4 被引用数 (Scopus)

抄録

A new recrystallization phase-field method is proposed, in which the three stages of recrystallization phenomena, i.e., recovery, nucleation and nucleus growth are sequentially taken into account in a computation. From the information of subgrain patterns and crystal orientations in a polycrystal that are obtained by a dislocation-crystal plasticity FE analysis based on a reaction-diffusion model, subgrain groups surrounded by high angle boundary are found out. Next, subgrains in the group are coalesced into a nucleus by rotation of crystal orientation and migration of subgrain boundaries through a phase-field simulation. Then a computation of nucleus growth is performed also using the phase-field method on account of an autonomic incubation period of nucleation, in which stored dislocation energy assumes a role of driving force. It is shown that the present method can numerically reproduce the three stages of recrystallization as a sequence of computational procedure.

本文言語English
ホスト出版物のタイトルMaterials Science Forum - Nanomaterials by Severe Plastic Deformation 4 - 4th International Conference on Nanomaterials by Severe Plastic Deformation
出版社Trans Tech Publications Ltd
ページ1045-1050
ページ数6
ISBN(電子版)978-0-87849-360-9
DOI
出版ステータスPublished - 2008
イベント4th International Conference on Nanomaterials by Severe Plastic Deformation - Goslar, Germany
継続期間: 2008 8 182008 8 22

出版物シリーズ

名前Materials Science Forum
584-586 PART 2
ISSN(印刷版)0255-5476
ISSN(電子版)1662-9752

Other

Other4th International Conference on Nanomaterials by Severe Plastic Deformation
国/地域Germany
CityGoslar
Period08/8/1808/8/22

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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