Analysis of recrystallization behavior of hot-deformed austenite reconstructed from EBSD orientation maps of lath martensite

Manabu Kubota, Kohsaku Ushioda, Goro Miyamoto, Tadashi Furuhara

研究成果: Conference contribution

抄録

The recrystallization behavior of hot-deformed austenite of 0.55% C low alloy steels at 900, 850 and 800ºC was investigated by a conventional double-hit compression test and a new method which reconstructs the parent austenite orientation map from an EBSD (electron backscattering diffraction) orientation map of daughter lath martensite. The new method can clearly reconstruct the parent austenite structure at high temperature from the daughter lath martensite structure and we can obtain the information on crystal orientation of the work-hardened austenite. It was revealed that recrystallization of austenite at 800 °C is significantly retarded by the addition of 0.1% V. The strong texture of <110> parallel to the compression direction develops just after the hot-deformation, but this texture becomes weaker as the recrystallization progresses. By applying the reconstruction method, it becomes possible to evaluate various phenomena related to the hot-deformation of austenite.

本文言語English
ホスト出版物のタイトルTHERMEC 2016
編集者Christof Sommitsch, Mihail Ionescu, Brajendra Mishra, Brajendra Mishra, Ernst Kozeschnik, T. Chandra
出版社Trans Tech Publications Ltd
ページ2389-2394
ページ数6
ISBN(印刷版)9783035711295
DOI
出版ステータスPublished - 2017
イベント9th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC 2016 - Graz, Austria
継続期間: 2016 5 292016 6 3

出版物シリーズ

名前Materials Science Forum
879
ISSN(印刷版)0255-5476
ISSN(電子版)1662-9752

Other

Other9th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC 2016
国/地域Austria
CityGraz
Period16/5/2916/6/3

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

フィンガープリント

「Analysis of recrystallization behavior of hot-deformed austenite reconstructed from EBSD orientation maps of lath martensite」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル