In-situ Observations of R-Phase Transformation in a Ti_<50>Ni_<48>Fe_2 Alloy by Electron Microscopy

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The R-phase transformation in a Ti<SUB>50</SUB>Ni<SUB>48</SUB>Fe<SUB>2</SUB> alloy was studied by <I>in-situ</I> electron microscopy with double-tilt cooling stages and an energy-filter, and the controversial incommensurability in the early stage of the transformation was examined by using imaging plates, which have high sensitivity and are easy to access to computer analysis. As a result, the transformation was shown to proceed in the following way. The R-phase transformation starts at <I>R</I><SUB>s</SUB> point, where the electrical resistance starts to increase, from the B2 parent phase with weak diffuse scattering to the commensurate R-phase with a sharp interface. Thus, the transformation is a first order throughout, and the temperature hysteresis represents the two-phase region of the B2 parent and the commensurate R-phase.

収録刊行物

  • Materials transactions, JIM

    Materials transactions, JIM 39(7), 714-723, 1998-07

    社団法人 日本金属学会

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各種コード

  • NII論文ID(NAID)
    10003803123
  • NII書誌ID(NCID)
    AA10699969
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    09161821
  • NDL 記事登録ID
    4525768
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z53-J286
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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