In-situ observation of grain-boundary migration in Fe-3wt%Si bicrystals by synchrotron X-radiation topography

Katsushi Ichikawa, Toshiyuki Ueda, Sadahiro Tsurekawa, Yasunari Yoshitomi, Yukio Matsuo, Koichi Kawasaki, Hideharu Nakashima, Hideo Yoshinaga

Research output: Contribution to journalArticlepeer-review

Abstract

In order to examine the grain-boundary migration mechanism, two high purity Fe-3wt%Si bicrystals were produced. One has a (114)Σ9 coincidence boundary, and the other has a random boundary. In-situ observation of grain-boundary migration was conducted by synchrotron X-radiation dynamic topography. It was found that macroscopic grain-boundary migration was recognised at the temperature above 1170K. From the results of isothermal annealing(1270∼1320K), it was clarified that the mobility of Σ9 coincidence boundary was higher than that of the random boundary.

Original languageEnglish
Pages (from-to)13-16
Number of pages4
JournalTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
Volume82
Issue number6
Publication statusPublished - 1996

All Science Journal Classification (ASJC) codes

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

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