• DocumentCode
    1070995
  • Title

    Phase transformation and magnetic properties of nanocrystalline Fe 73.5Cu1Nb3Si22.5-xBx (x=6,9) alloys

  • Author

    Vázquez, M. ; Marin, p. ; Leccabue, F. ; Watts, B.E. ; Deriu, A. ; Negri, D. ; Bocelli, G.

  • Author_Institution
    Inst. de Ciencia de Mater., CSIC, Madrid, Spain
  • Volume
    29
  • Issue
    6
  • fYear
    1993
  • fDate
    11/1/1993 12:00:00 AM
  • Firstpage
    2685
  • Lastpage
    2687
  • Abstract
    The coercivity and phase transformations of Fe73.5Cu 1Nb3Si22.5-xBx nanocrystalline alloys as a function of temperature (540 and 620°C), annealing times (up to 240 min), and composition (x=6 and 9) are investigated by means of magnetic measurements, Mossbauer spectroscopy, and X-ray diffractometry. Nanocrystalline microstructure after annealing at 540°C gives rise to a softening of the material, while, after annealing at 620°C for short times, a magnetic hardening is observed before a significant increase in size of the α-Fe(Si) grains and the detection of a secondary Fe2B phase. The initial stages of Fe2B precipitation seem to be responsible for this magnetic hardening
  • Keywords
    Mossbauer effect; X-ray diffraction examination of materials; annealing; boron alloys; coercive force; copper alloys; crystallisation; ferromagnetic properties of substances; grain growth; iron alloys; magnetic properties of amorphous substances; melt spinning; metallic glasses; nanostructured materials; niobium alloys; precipitation; silicon alloys; 0 to 240 min; 540 to 620 C; Fe2B precipitation; Fe73.5Cu1Nb3Si22.5-xB x; Mossbauer spectroscopy; X-ray diffractometry; annealing temperature; annealing times; coercivity; composition dependence; magnetic hardening; magnetic properties; nanocrystalline; phase transformations; secondary crystallisation; softening; Annealing; Coercive force; Copper alloys; Iron alloys; Magnetic materials; Magnetic properties; Magnetic variables measurement; Niobium alloys; Silicon alloys; Temperature;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/20.280940
  • Filename
    280940
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1070995