• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Fabrication of Fe- and Co-based metallic glasses and their high functional properties

Research Project

Project/Area Number 10305049
Research Category

Grant-in-Aid for Scientific Research (A).

Allocation TypeSingle-year Grants
Section一般
Research Field Structural/Functional materials
Research InstitutionTohoku University

Principal Investigator

INOUE Akihisa  Institute for Materials Research, Tohoku Univ., Professor, 金属材料研究所, 教授 (10108566)

Co-Investigator(Kenkyū-buntansha) ZHANG Tao  Institute for Materials Research, Tohoku Univ., Assoc.Prof., 金属材料研究所, 助教授 (70250818)
KAWAMURA Yoshihito  Engineering Department, Kumamoto Univ., Assoc.Prof., 工学部, 助教授 (30250814)
KIMURA Hisamichi  Institute for Materials Research, Tohoku Univ., Res.Assoc., 金属材料研究所, 助手 (00161571)
TAKEUCHI Akira  Institute for Materials Research, Tohoku Univ., Res.Assoc., 金属材料研究所, 助手 (40250815)
Project Period (FY) 1998 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥38,400,000 (Direct Cost: ¥38,400,000)
Fiscal Year 2000: ¥4,900,000 (Direct Cost: ¥4,900,000)
Fiscal Year 1999: ¥21,600,000 (Direct Cost: ¥21,600,000)
Fiscal Year 1998: ¥11,900,000 (Direct Cost: ¥11,900,000)
Keywordsmetallic glass / iron base alloy / cobalt base alloy / supercooled liquid region / soft magnetic properties / 過冷却液体 / パルク金属ガラス / 鉄基金属ガラス / コバルト基金属ガラス / 機械的性質
Research Abstract

In this fiscal year Fe-base metallic glasses with the large supercooled liquid region before crystallization reaching 100K were found. The maximum diameter of the metallic glasses reaches as large as 5 mm. In addition, large supercooled liquid region of maximum 88 K was found in Co-base metallic glasses. This enable us to fabricate bulk shape specimens with a maximum thickness of 5 mm. Furthermore, rodshaped metallic glasses were prepared with a flux treatment for the Fe-based multicomponent metallic glasses. This preparation method enable us to prepare bulk metallic glasses with maximum thickness of 4 mm even in a low cooling rate. The flux treatment method is effective for decreasing coercivity and increasing supercooled liquid region by 30 %. The glass-forming ability, the stability of supercooled liquid region and the soft magnetic properties increase effectively applying the flux method, by which molten alloy is cleaned, for Fe-based metallic glasses in addition to Pd-based metall … More ic glasses. Based on the findings, ring-shaped bulk metallic glasses with good soft magnetic properties were prepared. Basis research for application is under promoting. The deformed Fe- and Co based metallic glasses, utilizing viscous flow deformation in the supercooled liquid region before crystallization, shows as good soft magnetic properties as metallic glasses prepared by low cooling rate. Bulk metallic glasses were succeeded in preparing by powder consolidation undegrading soft magnetic properties, The consolidation method is found to be appropriate for the fabrication of bulk metallic glasses. Fe based metallic glasses containing lanthanide metals as small as 3 to 4 atomic percent shows supercooled liquid region of 50 K.The small addition increase the glass-forming ability, resulted in fabricating bulk shaped metallic glasses with a several millimeters thickness. Furthermore, metallic glasses subjected appropriate annealing are found to have mixture structure of remaingn metallic glasse with nanometer sized crystalline phase and have good hard magnetic These results attracts attention as a new process to make new permanent magnet bulk materials. Less

Report

(4 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • 1998 Annual Research Report
  • Research Products

    (37 results)

All Other

All Publications (37 results)

  • [Publications] A.Inoue: "Stabilization of Metallic Supercooled Liquid and Bulk Amorphous Alloys"Acta.Mater.. 279-306 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] A.Inoue: "Ferromagnetic Bulk Glassy Alloys with Useful Engineering Properties"Mater.Sci.Forum. 343-346. 81-90 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] A.Inoue: "Ferromagnetic Bulk Glassy Alloys"J.Magn.Magn.Mater.. 215-216. 264-252 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] A.Inoue: "Bulk Amorphous FC20(Fe-C-Si) Alloys with Small Amounts of B and Their Crystallized Structure and Mechanical Properties"Acta.Mater.. 48. 1383-1395 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] A.Inoue: "High-Frequency Permeability Character stics of Fe-and Co-based Amorphous Alloys with High B Concentrations"IEEE Trans.Magn.. 35・5. 3355-3357 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] A.Inoue: "Stabilization of Supercooled Liquid and Bulk Glassy Alloys in Ferrous and Non-ferrous Systems"J.Non-Cryst.Solids. 250-252. 552-559 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] A.Inoue,A.Takeuchi and T.Zhang: "Microstructure and Properties of Materials (Volume 2,Chapter 5:Synthesis and Soft Magnetic Properties of Fe-Based Bulk Amorphous Alloys)"World Scientific Printers, Singapore. 436 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] A.Inoue: "Amorphous Nanocrystalline Materials"Springer-Verlag New York Inc.. 240 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] A.Inoue: "Stabilization of Metallic Supercooled Liquid and Bulk Amorphous Alloys"Acta.Mater. 48. 279-306 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] A.Inoue: "Ferromagnetic Bulk Glassy Alloys with Useful Engineering Properties"Mater.Sci.Forum. 343-346. 81-90 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] A.Inoue: "Ferromagnetic Bulk Glassy Alloys"J.Magn.Magn.Mater. 215-216. 264-252 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] A.Inoue: "Bulk Amorphous FC20 (Fe-C-Si) Alloys with Small Amounts of B and Their Crystallized Structure and Mechanical Properties"Acta.Mater.. 48. 1383-1395 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] A.Inoue: "High-Frequency Permeability Characteristics of Fe-and Co-based Amorphous Alloys with High B Concentrations"IEEE Trans.Magn.. 35 5. 3355-3357 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] A.Inoue: "Stabilization of Supercooled Liquid and Bulk Glassy Alloys in Ferrous and Nonferrous Systems"J.Non-Cryst.Solids. 250-252. 552-559 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] A.Inoue: "Microstructure and Properties of Materials (Volume 2, Chapter 5 : Synthesis and Soft Magnetic Properties of Fe-Based Bulk Amorphous Alloys"World Scientific Printers, Singapore. 436 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] A.Inoue: "Amorphous Nanocrystalline Materials"Springer-Verlag New York Inc.. 240 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] A.Inoue: "Stabilization of Metallic Supercooled Liquid and Bulk Amorphous Alloys"Acta.Mater.. 48. 279-306 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] A.Inoue: "Ferromagnetic Bulk Glassy Alloys with Useful Engineering Properties"Mater.Sci.Forum. 343-346. 81-90 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] A.Inoue: "Ferromagnetic Bulk Glassy Alloys"J.Magn.Magn.Mater.. 215-216. 246-252 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] A.Inoue: "Bulk Amorphous FC20 (Fe-C-Si) Alloys with Small Amounts of B and Their Crystallized Structure and Mechanical Properties"Acta.Mater.. 48. 1383-1395 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] A.Inoue: "High-Frequency Permeability Characteristics of Fe-and Co-based Amorphous Alloys with High B Concentrations"IEEE Trans.Magn.. 35・5. 3355-3357 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] A.Inoue: "Stabilization of Supercooled Liquid and Bulk Glassy Alloys in Ferrous and Non-ferrous Systems"J.Non-Cryst.Solids. 250-252. 552-559 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] A.Inoue,A.Takeuchi and T.Zhang: "Microstructure and Properties of Materials (Volume 2,Chapter 5:Synthesis and Soft Magnetic Properties of Fe-Based Bulk Amorphous"World Scientific Printers,Singapore. 436 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] A.Inoue: "Amorphous Nanocrystalline Materials"Springer-Verlag New York Inc.. 240 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] A.Inoue: "New Fe-based amorphous alloys with large magnetostriction and wide supercooled liquid region before crystallization"J. Appl. Phys.. 85・8. 4491-4493 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] X.M.Wang: "Bulk Amorphous FC20 (Fe-C-Si) Cast Iron with Small Addition of B"Mater. Trans., JIM. 40・7. 634-642 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] T.Itoi: "High-frequency permeability of (Fe,Co,Ni)_<62>Nb_8B_<30> amorphous alloys with a wide supercooled liquid region"Appl. Phys. Lett.. 74・17. 2510-2512 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] A.Inoue: "Bulk Amorphous Alloys"Non-Equilibrium Processing of Materials. 375-414 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] A.Inoue: "Synthesis and Properities of Feromagnetic Bulk Amorphous Alloys"Mat. Res. Soc. Symp. Proc.. 554. 251-262 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] A.Inoue: "High-Frequency Permeability Characteristics of Fe-and Co-based Amorphous Alloys with High B Concentrations"IEEE Transactions on Magneics. 35・5. 3355-3357 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] A.Inoue: "Bulk Amorphous Alloys-Practical Caracteristics and Applications-"Trans Tech Publications. 148 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] A.Inoue et al.: "Wide Supercooled Liquid Region and Soft Magnetic Properties of Fe_<56>CO_7Ni_7Zr_<0-10>Nb(or Ta)_<0-10>B_<20> Amorphous Alloys" Journal of Applied Physics. 83・4. 1967-1974 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] A.Inoue et al.: "Ferrous and Nonferrous Bulk Amorphous Alloys" Materials Science Forum. 269-272. 855-864 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] A.Inoue and A.Makino: "Preparation and Soft Magnetic Properties of Fe-based Bulk Amorphous Alloys" Jouranl of Physics. IV. 3-10 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] A.Inoue et al.: "Ferromagnetic Bulk Amorphous Alloys" Metallurgical and Material Transactions. 29A. 1779-1793 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] H.Koshiba and A.Inoue: "Effects of Additional Elemens(M=Transition Metal) on the Thermal Stability and Soft Magnetic Properties in Fe-Co-Ni-Zr-M-B Amorthous Alloys with Wide Supercooled Liquid Range" Advanced Materials and Processing(PRICM3). 1023-1028 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] A.Inoue et al.: "Ferromagnetic Co-Fe-Zr-B Amorphous Alloys with Glass Transition and Good High-Frequency Permeability" Applied Physics Letter. 73. 744-746 (1998)

    • Related Report
      1998 Annual Research Report

URL: 

Published: 1998-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi