論文

査読有り
2013年

Static tensile deformation behavior of a lean duplex stainless steel studied by in situ neutron diffraction and synchrotron radiation white X-rays

ISIJ International
  • Noriyuki Tsuchida
  • ,
  • Taiji Kawahata
  • ,
  • Eiichiro Ishimaru
  • ,
  • Akihiko Takahashi
  • ,
  • Hiroshi Suzuki
  • ,
  • Takahisa Shobu

53
7
開始ページ
1260
終了ページ
1267
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.2355/isijinternational.53.1260

To investigate the tensile deformation behavior of a lean duplex stainless steel (S32101) from the viewpoints of plastic deformability among phases or grains, we performed static tensile tests, in situ neutron diffraction, and white x-ray diffraction experiments at room temperature. In the static tensile tests, the S32101 steel displayed a larger uniform elongation and a better tensile strength-uniform elongation balance than a commercial SUS329J4L duplex stainless steel. A larger uniform elongation of S32101 is associated with the macroscopic work hardening behavior that a work hardening rate higher than the flow stress can maintain up until high true strains. From the experimental results of synchrotron radiation white x-ray diffraction experiments, the hard phase of S32101 was changed from the ferrite (α ) phase to austenite (γ ) one during tensile deformation. This led to a larger stress partitioning between the phases at the latter stage of deformation. From the experimental results of in situ neutron diffraction, it was found that the stress partitioning of the γ phase in the S32101 was the largest among the present results. Therefore, the larger work hardening rate of S32101 can be explained by the large stress partitioning of the ã phase, that between ã and á phases and ã volume fraction. © 2013 ISIJ.

Web of Science ® 被引用回数 : 17

リンク情報
DOI
https://doi.org/10.2355/isijinternational.53.1260
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000322208600022&DestApp=WOS_CPL
ID情報
  • DOI : 10.2355/isijinternational.53.1260
  • ISSN : 0915-1559
  • SCOPUS ID : 84883240995
  • Web of Science ID : WOS:000322208600022

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