Crystallization of Co75-xFexGe15B10 amorphous alloys

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 deg C and their microstructures wer...

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Veröffentlicht in:	Journal of thermal analysis and calorimetry 2004, Vol.75 (2), p.655-660
Hauptverfasser:	BARROSO, M. D. B, MELO, T. A. A, PRASAD, Shiva, GOMES, R. M, LIMA, I. C. E. S. G, SOUZA, A. G, LIMA, S. J. G
Format:	Artikel
Sprache:	eng
Schlagworte:	Cross-disciplinary physics: materials science rheology Exact sciences and technology Glasses (including metallic glasses) Materials science Physics Specific materials
Online-Zugang:	Volltext
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Zusammenfassung:	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 deg 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.
ISSN:	1388-6150
DOI:	10.1023/B:JTAN.0000027159.35556.57