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[(Fe0.5Co0.5)0.75B0.20Si0.05]96Nb4 Metallic Glasses with Small Cu Additions

  • Symposium: Bulk Metallic Glasses VII
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Abstract

Recently, (Fe-Co)-B-Si-Nb bulk metallic glasses (BMGs) were produced. Such BMGs exhibit high glass-forming ability (GFA) as well as good mechanical and magnetic properties. These alloys combine the advantages of functional and structural materials. The soft magnetic properties can be enhanced by nanocrystallization. To force the nanocrystallization, small content of Cu was added to the starting composition. In this article, {[(Fe0.5Co0.5)0.75Si0.05B0.20]0.96Nb0.04}100–x Cu x glassy alloys (x = 1, 2, and 3) were chosen for investigation. The GFA and the thermal stability of these alloys were evaluated. The effects of crystallization during heat-treatment processes on the phase evolution and the magnetic properties, including M s , H c , and T c , in these alloys were investigated. The phase analyses were done with the help of the X-ray diffraction patterns recorded in situ by using the synchrotron radiation in transmission configuration.

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Acknowledgments

The authors thank B. Bartusch, S. Donath, M. Frey, and H. Schulze for technical help and S. Pauly and U. Siegel for stimulating discussions. This work was partially supported by the EU research and training network on Ductile BMG Composites (Grant No. MRTN-CT-2003-504692) and partially by the German Science Foundation (DFG Grant No. STO 873/2-1). One of the authors (RL) acknowledges the financial support received from A. von Humboldt association.

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Authors and Affiliations

  1. Institute for Complex Materials, IFW Dresden, D-01171, Dresden, Germany

    M. Stoica (Scientific Researcher), R. Li (Humboldt Fellow) & J. Eckert (Professor and Director)

  2. Institute for Metallic Materials, IFW Dresden, D-01171, Dresden, Germany

    S. Roth (Senior Researcher)

  3. Department of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, 100191, Beijing, P.R. China

    R. Li (Humboldt Fellow)

  4. Institute of Materials Science, TU Dresden, D-10162, Dresden, Germany

    J. Eckert (Professor and Director)

  5. European Synchrotron Radiation Facility (ESRF), Genoble, F-38042, France

    G. Vaughan (Senior Researcher)

  6. SIMaP-CNRS, INP Grenoble, St-Martin-d’Hères, F38402, France

    A. R. Yavari (Professor and Senior Researcher)

Authors
  1. M. Stoica
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  2. R. Li
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  3. S. Roth
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  4. J. Eckert
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  6. A. R. Yavari
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Corresponding author

Correspondence to M. Stoica.

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Manuscript submitted April 29, 2010.

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Stoica, M., Li, R., Roth, S. et al. [(Fe0.5Co0.5)0.75B0.20Si0.05]96Nb4 Metallic Glasses with Small Cu Additions. Metall Mater Trans A 42, 1476–1480 (2011). https://doi.org/10.1007/s11661-010-0435-8

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  • DOI: https://doi.org/10.1007/s11661-010-0435-8

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