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Effect of magnetic field on orientation of crystallographic domains during disorder-order transformation

Research Project

Project/Area Number 26820286
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Physical properties of metals/Metal-base materials
Research InstitutionKyushu University

Principal Investigator

Farjami Sahar  九州大学, 総合理工学研究科(研究院), 助教 (20588173)

Project Period (FY) 2014-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywords磁場 / 不規則‐規則変態 / 電子顕微鏡 / 不規則-規則相変態 / 熱処理 / 組織制御
Outline of Final Research Achievements

Selected formation of an ordered variant during disorder-order transformation in A1-L10 alloys has been found by ordering heat treatment under magnetic field. However, quantitative evaluation of nucleation ratio of ordered variants is complicated because of dynamical electron diffraction. In this study, Precession Electron Diffraction (PED) technique, which reduces effect of dynamical electron diffraction, has been applied in Fe-40at.%Pt alloy ordered under magnetic field and ratio of superlattice reflections have been evaluated quantitatively.

Report

(3 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • Research Products

    (3 results)

All 2016 2014

All Presentation (3 results)

  • [Presentation] プリセッション電子回折法によるL10合金における規則反射強度比の定量評価2016

    • Author(s)
      片ノ坂 聡人
    • Organizer
      日本顕微鏡学会
    • Place of Presentation
      仙台
    • Year and Date
      2016-06-14
    • Related Report
      2015 Annual Research Report
  • [Presentation] 磁場中熱処理を施したL10強磁性合金における優先核生成の定量評価2016

    • Author(s)
      片ノ坂 聡人
    • Organizer
      平成28年度合同学術講演会 日本金属学会九州支部・日本鉄鋼協会九州支部・軽金属学会九州支部
    • Place of Presentation
      熊本
    • Year and Date
      2016-06-11
    • Related Report
      2015 Annual Research Report
  • [Presentation] Electron Microscopy Study of Disorder-Order Transformation in Ferromagnetic Alloys under Magnetic Field2014

    • Author(s)
      S. Farjami, H. Akamine, M. Itakura, M. Nishida, T. Fukuda, and T. Kakeshita
    • Organizer
      Materials Research Society (MRS) Fall Meeting
    • Place of Presentation
      Boston, Massachusetts, USA
    • Year and Date
      2014-11-30 – 2014-12-05
    • Related Report
      2014 Research-status Report

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Published: 2014-04-04   Modified: 2017-05-10  

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