Reconstruction of parent austenite grain structure based on crystal orientation map of bainite with and without ausforming

Goro Miyamoto, Naomichi Iwata, Naoki Takayama, Tadashi Furuhara

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

By using a reconstruction program recently developed by the present authors, the parent austenite grain structure is reconstructed from the crystal orientation map of bainite structure. Local austenite orientation can be reconstructed from non-ausformed bainite structure with errors of 1.7° and 1.0° at spatial resolutions of 5 and 20 μm respectively. The angle of errors is further reduced to be less than 0.5° when an analysis area is extended to a whole austenite grain. Application of the reconstruction program to the bainite structure transformed from deformed austenite has clarified that the variation in grain shape and deformation texture of parent austenite can be well reconstructed.

Original languageEnglish
Pages (from-to)1174-1178
Number of pages5
JournalIsij International
Volume51
Issue number7
DOIs
Publication statusPublished - 2011 Jul 15

Keywords

  • Ausforming
  • Bainite
  • EBSD
  • Orientation relationship
  • Texture

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Reconstruction of parent austenite grain structure based on crystal orientation map of bainite with and without ausforming'. Together they form a unique fingerprint.

  • Cite this