論文

査読有り
2020年5月

Influence of carbon concentration and magnetic transition on the austenite lattice parameter of 30Mn-C steel

MATERIALS CHARACTERIZATION
  • Y. Tomota
  • ,
  • T. Murakami
  • ,
  • Y. X. Wang
  • ,
  • T. Ohmura
  • ,
  • S. Harjo
  • ,
  • Y. H. Su
  • ,
  • T. Shinohara

163
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.matchar.2020.110243
出版者・発行元
ELSEVIER SCIENCE INC

In this study, the effects of carbon concentration and magnetic transition on the austenite lattice parameter of Fe-30Mn-xC alloys were assessed. A linear relationship was obtained between the carbon content and the lattice parameter determined by neutron diffraction and neutron Bragg-edge transmission imaging for austenitic steels bearing 0.007-1.20 mass% C. The results obtained through both methods showed good agreement. In addition, carbon partitioning was evaluated in artificially piled-up discs with different carbon contents in order to develop a new technique for advanced multi-phase steels. The analysis of asymmetry and broadening of the diffraction line profile revealed that the carbon partitioning could be determined. In addition, the Neel temperature was determined by in situ neutron diffraction upon heating and cooling with magnetic diffraction peaks and the change in the lattice parameter with temperature being monitored. The temperature dependence of the austenite lattice parameter was found to become smaller below the Neel temperature. In conclusion, the results presented herein expand the current knowledge on the properties of high Mn austenite.

リンク情報
DOI
https://doi.org/10.1016/j.matchar.2020.110243
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000551341700004&DestApp=WOS_CPL
Scopus
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85081401216&origin=inward
Scopus Citedby
https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85081401216&origin=inward
ID情報
  • DOI : 10.1016/j.matchar.2020.110243
  • ISSN : 1044-5803
  • eISSN : 1873-4189
  • SCOPUS ID : 85081401216
  • Web of Science ID : WOS:000551341700004

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