Dynamic recrystallization of biomedical Co-Cr-W-Ni (L-605) alloy

Julien Favre, Akihiko Chiba, Yuichiro Koizumi, Damien Fabrègue, Eric Maire

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

Compression tests are carried out at high-temperature on Thermec-master Z, followed by gas quench. Microstructures after deformation are evaluated using SEM-EBSD. Significant grain refinement occurs by dynamic recrystallization for high temperature and low strain rate (T>1100°C, SR<0.1s-1), and at high strain rate (SR∼10s-1). Dynamic recrystallization is discontinuous and takes place from the grain boundaries, leading to a necklace structure. The nucleation mechanism is most likely to be bulging of grain boundaries. However, recrystallization occurs also by rotation of annealing twins. Thereafter the twin boundaries can bulge as well. The modeling of mechanical behavior gives a fair quantification of flow softening due to dynamic recrystallization indicating the progress of dynamic recrystallization with deformation.

本文言語English
ホスト出版物のタイトルTHERMEC 2011
出版社Trans Tech Publications Ltd
ページ472-477
ページ数6
ISBN(印刷版)9783037853030
DOI
出版ステータスPublished - 2012
イベント7th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC'2011 - Quebec City, QC, Canada
継続期間: 2011 8 12011 8 5

出版物シリーズ

名前Materials Science Forum
706-709
ISSN(印刷版)0255-5476
ISSN(電子版)1662-9752

Other

Other7th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC'2011
国/地域Canada
CityQuebec City, QC
Period11/8/111/8/5

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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