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Metal Activated Recrystallization and Creep of Tungsten Fibres

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Sintering’85

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Abstract

A study has been made of the recrystallization of W-wire, activated by coatings of Ni, Pt and Fe, and of the diffusivity of these metals in the W grain boundaries. The recrystallization is activated significantly by Ni and Pt but much less so by Fe. The effective grain boundary diffusion of the former two in W is also significantly faster than that of Fe. For all three metals the diffusion is faster in a recrystallizing grain structure than in stationary, recrystallized grain boundaries. The active metals form a distinct grain-boundary layer, about 2 nm thick, behind the advancing recrystallization front. The slow diffusion and non-activity of Fe seems to be associated with the existence of the stable intermetallic phase Fe7W6. Above 1910 K, the dissociation temperature of this coumpound, Fe behaves as an activator.

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Author information

Authors and Affiliations

  1. Research Institute for Technical Physics of the Hungarian Academy of Sciences, Budapest, Hungary

    L. Kozma

  2. Institut für Werkstoffwissenschaften, Max-Planck-Institut für Metallforschung, Stuttgart, Germany

    E.-Th. Henig

  3. Volvo Flygmotor AB, Trollhättan, Sweden

    R. Warren

Authors
  1. L. Kozma
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  2. E.-Th. Henig
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  3. R. Warren
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Editor information

Editors and Affiliations

  1. University of Notre Dome, Notre Dame, Indiana, USA

    G. C. Kuczynski

  2. Institute of Technical Sciences, Serbian Academy of Sciences and Arts, Belgrade, Yugoslavia

    D. P. Uskoković

  3. North Carolina State University, Raleigh, North Carolina, USA

    Hayne Palmour III

  4. Serbian Academy of Science and Arts, Belgrade, Yugoslavia

    M. M. Ristić

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© 1987 Plenum Press, New York

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Kozma, L., Henig, ET., Warren, R. (1987). Metal Activated Recrystallization and Creep of Tungsten Fibres. In: Kuczynski, G.C., Uskoković, D.P., Palmour, H., Ristić, M.M. (eds) Sintering’85. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-2851-3_15

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  • DOI: https://doi.org/10.1007/978-1-4613-2851-3_15

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4612-9799-4

  • Online ISBN: 978-1-4613-2851-3

  • eBook Packages: Springer Book Archive

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