加热速率对逆转变奥氏体微观组织的影响

Translated title of the contribution: Effects of heating rate on microstructure of reverted austenite

Xian Guang Zhang, Goro Miyamoto, Tadashi Furuhara

Research output: Contribution to journalArticlepeer-review

Abstract

In order to investigate the effects of heating rate on the reverted austenite structure,the microstructures after partial or complete reversion was studied by thermal dilatometer and Electron backscatter diffraction (EBSD). It was found that high heating rate promotes the formation of globular austenite,while low heating rate favors the formation of acicular austenite. Meanwhile,higher heating rate leads to finer austenite structures after reversion. High heating rate makes the nucleation and growth of the reverted austenite occurred at high temperatures,at which the growth of the globular austenite is substitutional alloying elements partitioning-less and grows very fast. Therefore,high heating rate enhances the formation of globular austenite.

Translated title of the contributionEffects of heating rate on microstructure of reverted austenite
Original languageChinese (Traditional)
Pages (from-to)83-89
Number of pages7
JournalKang T'ieh/Iron and Steel
Volume54
Issue number2
DOIs
Publication statusPublished - 2019 Feb 1

Keywords

  • Austenite
  • Heating rate
  • Morphology
  • Reversion

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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