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Crystallization of Co75-xFexGe15B10 amorphous alloys

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Abstract

The crystallization behavior of Co75-xFexGe15B10 (x=3.0, 4.6 and 6.0) amorphous alloys was monitored by differential thermal analysis and thermo-mechanical analysis. The crystallization process of the melt spun ribbons was interrupted at 450, 525, 650, 800 and 900°C and their microstructures were investigated by X-ray diffractometry. It was observed that the crystallization occurs in a sequential mode attributed to the formation of different types of precipitates. It was shown that the crystallization products change as a function of Fe content. After full crystallization, GeFe, Co3B, FeGe2 and Co2Ge compounds were found as well as a Co rich solid solution.

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Authors and Affiliations

  1. Instituto Centro de Ensino Tecnológico, CENTEC, Universidade Federal da Paraíba, Paraíba, Brazil

    M. D. B. Barroso

  2. Laboratório de Solidificaçăo Rápida, CT-DTM, Universidade Federal da Paraíba, Campus I, Cidade Universitária, 58059-900, Joăo Pessoa, Paraíba, Brazil

    T. A. A Melo, R. M. Gomes, I. C. E. S. G. Lima & S. J. G. Lima

  3. Departamento de Engenharia Química, CCT, Universidade Federal de Campina Grande, Campina Grande, PB, Brazil

    S. Prasad

  4. LTM, Departamento de Química, CCEN, Universidade Federal da Paraíba Campus I, 58059 - 900, Joăo Pessoa, PB, Brazil

    A. G. Souza

Authors
  1. M. D. B. Barroso
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  2. T. A. A Melo
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  3. S. Prasad
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  4. R. M. Gomes
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  5. I. C. E. S. G. Lima
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  6. A. G. Souza
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  7. S. J. G. Lima
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Barroso, M.D.B., Melo, T.A.A., Prasad, S. et al. Crystallization of Co75-xFexGe15B10 amorphous alloys. Journal of Thermal Analysis and Calorimetry 75, 655–660 (2004). https://doi.org/10.1023/B:JTAN.0000027159.35556.57

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  • DOI: https://doi.org/10.1023/B:JTAN.0000027159.35556.57

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