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Isothermal Section of the B-Cr-Fe System at 873 K

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Abstract

An experimental study of the phase equilibria of the B-Cr-Fe ternary system at 873 K by means of x-ray diffraction and scanning electron microscopy has been carried out. Iron and chromium solid solutions, six chromium borides Cr2B, Cr5B3, CrB, Cr3B4, CrB2 and CrB4, two iron borides Fe2B and FeB, intermetallic σ phase, and β-rhombohedral B were identified in the B-Cr-Fe model alloys after long-term annealing (2160-2300 h). Solubilities of chromium in iron borides and iron in chromium borides were determined. No ternary phase was found in the system. Based on the experimental results, an isothermal section of the B-Cr-Fe system at 873 K was established.

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Acknowledgments

The authors are grateful to the Slovak Grant Agency VEGA (Project No. 2/0073/18) and the Slovak Research and Development Agency (Project No. APVV-15-0049) for financial support.

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Authors and Affiliations

  1. Institute of Materials Research, Slovak Academy of Sciences, Watsonova 47, 040 01, Kosice, Slovakia

    Viera Homolová, Lucia Čiripová & Ján Kepič

Authors
  1. Viera Homolová
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  2. Lucia Čiripová
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  3. Ján Kepič
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Correspondence to Viera Homolová.

Additional information

This invited article is part of a special issue of the Journal of Phase Equilibria and Diffusion in honor of Prof. Jan Vrestal’s 80th birthday. This special issue was organized by Prof. Andrew Watson, Coventry University, and Dr. Ales Kroupa, Institute of Physics of Materials, Brno, Czech Republic.

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Homolová, V., Čiripová, L. & Kepič, J. Isothermal Section of the B-Cr-Fe System at 873 K. J. Phase Equilib. Diffus. 40, 79–85 (2019). https://doi.org/10.1007/s11669-018-0701-9

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  • DOI: https://doi.org/10.1007/s11669-018-0701-9

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