Prediction of structure change of austenite of low carbon steels

Jun ichi Wakita, Manabu Takahashi, Junji Haji, Osamu Kawano, Kazuyoshi Esaka

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Dynamic and static recrystallization behavior of γ grains of low carbon steels have been studied by means of hot working simulator. The obtained results are the following. Dynamic recrystallization is initiated after some critical degree of deformation εc which decreases as the temperature increases and the initial grain size becomes finer. Dynamically recrystallized fraction increases as increasing the strain, the strain rate and the temperature. On the other hand, statically recrystallized grain size becomes finer with decreasing the initial grain size and with increasing the strain, and statically recrystallized fraction increases markedly after deformation as increasing the temperature and the strain. On the basis of these results, a prediction model of γ structure changes after deformation is developed and its availability in the case of hot mill rolling was certified.

Original languageEnglish
Pages (from-to)617-622
Number of pages6
JournalTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
Volume82
Issue number7
DOIs
Publication statusPublished - 1996
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry

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