Continuous dynamic recrystallization during warm deformation of tempered lath martensite in a medium carbon steel

Un Hae Lee, Naoya Kamikawa, Goro Miyamoto, Tadashi Furuhara

研究成果: Conference contribution

5 被引用数 (Scopus)

抄録

To understand the mechanisms of accelerated dynamic recrystallization behavior during the warm deformation of martensites, the tempered lath martensite of 0.4C steel (Fe-0.399%C-1.96%Mn in mass %) was deformed at 650°C in compression to different reductions, and microstructural evolution was investigated. During the deformation, an initial lath martensite structure with a complicated morphology was gradually changed into more equiaxed structure. After 50% reduction and above, an equiaxed, fine grained structure mainly surrounded by high-angle boundaries was uniformly formed with dislocation substructures, where the dislocation density in the grains is relatively low. Since there was no significant boundary migration during this process, this microstructural evolution can be termed as continuous dynamic recrystallization.

本文言語English
ホスト出版物のタイトルMaterials Integration
出版社Trans Tech Publications Ltd
ページ124-127
ページ数4
ISBN(印刷版)9783037853764
DOI
出版ステータスPublished - 2012
イベントInt. Symposium of GCOE: Materials Integration, in Conjunction with the 2nd Int. Symposium on Advanced Synthesis and Processing Technology for Materials, ASPT 2011 and the 8th Materials Science School for Young Scientists, KINKEN-WAKATE 2011 - Sendai, Japan
継続期間: 2011 12 12011 12 2

出版物シリーズ

名前Key Engineering Materials
508
ISSN(印刷版)1013-9826
ISSN(電子版)1662-9795

Other

OtherInt. Symposium of GCOE: Materials Integration, in Conjunction with the 2nd Int. Symposium on Advanced Synthesis and Processing Technology for Materials, ASPT 2011 and the 8th Materials Science School for Young Scientists, KINKEN-WAKATE 2011
国/地域Japan
CitySendai
Period11/12/111/12/2

ASJC Scopus subject areas

  • 材料科学(全般)
  • 材料力学
  • 機械工学

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