Mechanism of reversible rearrangement of variants under magnetic field in Fe3Pt

• Project/Area Number: 18360331
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Structural/Functional materials
• Research Institution: Osaka University
• Principal Investigator: FUKUDA Takashi Osaka University, 大学院・工学研究科, 准教授 (50228912)
• Co-Investigator(Kenkyū-buntansha): KAKESHITA Tomoyuki 大阪大学, 大学院・工学研究科, 教授 (90127209) ; TERAI Tomoyuki 大阪大学, 大学院・工学研究科, 助教 (20346183)
• Project Period (FY): 2006 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥18,140,000 (Direct Cost: ¥14,600,000、Indirect Cost: ¥3,540,000); Fiscal Year 2008: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000); Fiscal Year 2007: ¥12,740,000 (Direct Cost: ¥9,800,000、Indirect Cost: ¥2,940,000); Fiscal Year 2006: ¥2,800,000 (Direct Cost: ¥2,800,000)
• Keywords: 形状記憶合金 / アクチュエータ / 巨大磁歪 / 結晶磁気異方性 / 双晶変形 / 強磁性形状記憶合金 / バリアント再配列 / 規則度 / 磁歪 / マルテンサイト変態 / インバー合金 / 弾性定数 / ヤーンテラー効果 / 磁区 / 機械的性質

Research Abstract

強磁性形状記憶合金Fe3Ptは、そのFCTマルテンサイト状態においてバリアント再配列にともなう可逆的な巨大磁場誘起歪を示すことを申請者らは見出した。本研究では、Fe3Ptにおいて可逆的な磁場によるバリアント再配列が可能となる理由を調査した。その結果、磁場下において結晶磁気異方性による磁気的なせん断応力が発生し、その値が双晶変形に必要な応力より大きくなることによりバリアント再配列が実現することを確認した。また、双晶変形応力の小さなFCTマルテンサイトがFe3Ptにおいて出現するのは、Fe3Ptがバンドヤーンテラー効果を示すためであることを見出した

Research Products

• [Journal Article] Influence of magnetocrystalline anisotropy on martensitic transformation under magnetic field of single-crystalline Ni_2MnGa (2009)
  • Author(s): T. Fukuda, H. Maeda, M. Yasui and T. Kakeshita
  • Journal Title: Scr. Mater 60 Pages: 261-263
  • Peer Reviewed
• [Journal Article] Influence of magnetocrystalline anisotropy on martensitic transformation under magnetic field of single crystalline Ni_2MnGa (2009)
  • Author(s): T. Fukuda, H. Maeda, M. Yasui, T. Kakeshita
  • Journal Title: Scripta Materialia 60 Pages: 261-263
  • Peer Reviewed
• [Journal Article] Effect of magnetic field on martensite to intermediate phase transformation in Ni_2MnGa (2008)
  • Author(s): T. Fukuda and T. Kakeshita
  • Journal Title: Advanced Materials Research 52 Pages: 199-203
  • Peer Reviewed
• [Journal Article] Temperature dependence of rearrangement of martensite variants by magnetic fiel in 10M, 14M and 2M martensites of Ni-Mn-Ga alloys (2008)
  • Author(s): N. Okamoto, T. Fukuda and T. Kakeshita
  • Journal Title: Mater. Sci. Eng. A 481-482 Pages: 306-309
  • Peer Reviewed
• [Journal Article] Microstructure and transformation temperature in alloys with a large magnetocrystalline anisotropy under external fields (2008)
  • Author(s): T. Kakeshita, J-H. Kim and T. Fukuda
  • Journal Title: Mater. Sci. Eng. A 481-482 Pages: 40-48
  • Peer Reviewed
• [Journal Article] Giant magnetic field induced strain in ferromagnetic shape memory alloys and it condition (2008)
  • Author(s): T. Fukuda and T. Kakeshita
  • Journal Title: Materials Science and Techinology 24 Pages: 890-895
  • Peer Reviewed
• [Journal Article] Selected formation of a vairiant in L1_0-type CoPt realized by ordering heat treatment under magnetic field (2008)
  • Author(s): S. Farjami, M. Yasui, T. Fukuda, T. Kakeshita
  • Journal Title: Scr. Mater 58 Pages: 811-814
  • Peer Reviewed
• [Journal Article] Difference between the R-phase and the commensurate phase in iron-doped Ti-Ni shape memory alloys (2008)
  • Author(s): M-S. Choi, T. Yamamoto, T. Fukuda, T. Kakeshita, E. Taguchi and H. Mori
  • Journal Title: Philos. Mag 88 Pages: 2449-2460
  • Peer Reviewed
• [Journal Article] Acoustic emission in the fcc-fct martensitic transition of Fe68.8Pd31.2 (2008)
  • Author(s): E. Bonnot, L. Manosa, A. Planes, D. S. Parra, E. Vives, B. Ludwig, C. Strothkaemper, T. Fukuda and T. Kakeshita
  • Journal Title: Phys. Rev. B 78 Pages: 184103-184103
  • Peer Reviewed
• [Journal Article] Giant magnetic field induced strain in ferromagnetic shape memory alloys and its condition (2008)
  • Author(s): T. Fukuda, T. Kakeshita
  • Journal Title: Materials Science and Technology 24 Pages: 890-895
  • Peer Reviewed
• [Journal Article] Difference between the R-phase and the commensurate phase in iron-doped Ti-Ni shape memory alloys (2008)
  • Author(s): M-S. Choi, T. Yamamoto, T. Fukuda, et. al.
  • Journal Title: Philosophical Magazine 88 Pages: 2449-2460
  • Peer Reviewed
• [Journal Article] Effect of magnetic field on martensitic transformation temperature in Ni_2MnGa with single variant and multi-variant states (2007)
  • Author(s): T. Fukuda, J-H Kim, T. Kakeshita
  • Journal Title: Mater. Sci. Forum 539-543 Pages: 3243-3248
  • Peer Reviewed
• [Journal Article] Control of microstructure driven by magnetic field in ferromagnetic intermetallics (2007)
  • Author(s): T. Kakeshita and T. Fukuda
  • Journal Title: Mater. Res. Soc. Symp. Proc 980 Pages: 121-129
  • Peer Reviewed
• [Journal Article] Onset magnetic field for rearrangement of martensite variants in Ni_2MnGa (2007)
  • Author(s): T. Fukuda, N. Okamoto, T. Kakeshita
  • Journal Title: Mater. Sci. Forum 561-565 Pages: 1109-1112
  • Peer Reviewed
• [Journal Article] Effect of magnetic field on ・-・ transformation in Fe-Rh alloys (2007)
  • Author(s): S. Farjami, M. Yuge, T. Fukuda, T. Terai and T. Kakeshita
  • Journal Title: Mater. Trans 48 Pages: 2821-2825
  • Peer Reviewed
• [Journal Article] Direct observation of field-induced variant transformation in Fe_3Pt using pulsed magnetic field x-ray diffraction (2007)
  • Author(s): Ouyang, ZW, et. al.
  • Journal Title: Journal of Applied Physics 102 Pages: 113917-113917
  • Peer Reviewed
• [Journal Article] Magnetic-Field-Induced Strain of Shape-Memory Alloy Fe_3Pt studied by a Capacitance Method in a Pulsed Magnetic Field (2007)
  • Author(s): Sakon, T, et. al.
  • Journal Title: Japanese Journal of Applied Physics 46 Pages: 146-151
  • Peer Reviewed
• [Journal Article] 強磁性形状記憶合金における巨大磁場誘起歪とその発生機構 (2007)
  • Author(s): 福田隆 et.al.
  • Journal Title: まぐね 2 Pages: 226-231
• [Journal Article] Magnetic-Field-Induced Strain of Shape-Memory Alloy Fe_3Pt studied by a Capacitance Method in a Pulsed Magnetic Field (2007)
  • Author(s): T.Sakon, A.Takaha, K.Obara, K.Dejima, H.Nojiri, M.Motokawa, T.Fukuda, T.Kakeshita
  • Journal Title: Japanese Journal of Applied Physics, 46 (2007) 146-151 46巻 Pages: 146-151
  • NAID: 10018704651
• [Journal Article] Effect of magnetic field on martensitic transformation temperature in Ni_2MnGa with single variant and multi-variant states (2007)
  • Author(s): T.Fukuda, J-h.Kim, T.Kakeshita
  • Journal Title: Materials Science Forum 539-543巻 Pages: 3243-3248
• [Journal Article] Ni_2MnGaならびにFe_3Ptにおける磁場誘起歪と変態温度の磁場依存性 (2006)
  • Author(s): 掛下知行, 福田隆
  • Journal Title: 金属 76巻・7号 Pages: 792-797
• [Journal Article] Influence of temperature on rearrangement of martensite variants by magnetic field in Fe_3Pt (2006)
  • Author(s): T.Sakamoto, T.Fukuda, T.Kakeshita
  • Journal Title: Materials Science and Engineering A 438-440巻 Pages: 1036-1040
• [Journal Article] Magnetocrystalline anisotropy constant and twinning stress in martensite phase of Ni-Mn-Ga (2006)
  • Author(s): N.Okamoto, T.Fukuda, T.Kakeshita, T.Takeuchi
  • Journal Title: Materials Science and Engineering A 438-440巻 Pages: 948-951
• [Journal Article] Ni-Mn-Ga系合金の巨大磁場誘起ひずみ (2006)
  • Author(s): 福田隆, 岡本成朗, 掛下知行, 竹内徹也
  • Journal Title: 金属 76巻・4号 Pages: 390-394
• [Presentation] Fe3Ptマルテンサイトの結晶磁気異方性と磁場による双晶変形機構 (2008)
  • Author(s): 関田さやか, 福田隆, 掛下知行
  • Organizer: 日本金属学会2008年秋期(143回)大会
  • Place of Presentation: 熊本大学黒髪キャンパス
  • Year and Date: 2008-09-23
• [Presentation] Control of Crystallographic Domain by Magnetic Field in Ferromagnetic Shape Memory Alloys and Antiferromagnetic CoO (2008)
  • Author(s): T. Kakeshita, T. Terai and T. Fukuda
  • Organizer: ICOMAT'08
  • Place of Presentation: Santa-Fe
  • Year and Date: 2008-07-01
• [Presentation] Fe3Ptマルテンサイトの結晶磁気異方性と磁場によるバリアント再配列機構(講演番号766) (2008)
  • Author(s): 関田さやか、福田隆、掛下知行
  • Organizer: 日本金属学会2008秋季講演大会
• [Presentation] 強磁性形状記憶合金の磁場による双晶変形条件(講演番号S4.38) (2008)
  • Author(s): 掛下知行、福田隆
  • Organizer: 日本金属学会2008年春季(142回)大会
• [Presentation] Fe_3Pt の電子状態とFCTマルテンサイト変態(講演番号277) (2008)
  • Author(s): 山本琢也、福田隆、掛下知行
  • Organizer: 金属学会2008年春季(142回)大会
• [Presentation] Effects of Magnetic Field and Uniaxial Stress on Twinning Plane Movement and Martensitic Transformation in Some Ferromagnetic Shape Memory Alloys (2007)
  • Author(s): T. Fukuda, et. al.
  • Organizer: MRS 2007 Fall Meeting
  • Place of Presentation: ボストン(米国)
  • Year and Date: 2007-11-26
• [Presentation] 磁場による強磁性形状記憶合金の組織・機能制御 (2007)
  • Author(s): 掛下知行、福田隆
  • Organizer: 日本鉄鋼協会2007秋季大会討35
• [Presentation] パルス磁場下における形状記憶合金Fe_3Ptの磁場誘起歪み(講演番号761) (2007)
  • Author(s): 左近拓男、小玉靖、野尻浩之、福田隆、掛下知行
  • Organizer: 日本金属学会2007春季大会(140回千葉)
• [Presentation] Magnetic-Field-Induced Strain of Fe-based Ferromagnetic Shape-Memory Alloy in a Pulsed Magnetic Field(BB5.5)
  • Author(s): T. Sakon, T. Fukuda and T. Kakeshita
  • Organizer: MRS 2007 Fall meeting