High pressure high temperature devitrification of Fe78B13Si9 metallic glass with simultaneous x-ray structural characterization

High pressure high temperature devitrification of Fe78B13Si9 metallic glass with simultaneous x-ray structural characterization

Changes in bulk crystallization behavior following devitrification at high pressure are investigated for a Fe78B13Si9 composition metallic glass using in-situ energy dispersive x-ray powder diffraction. Crystallization with time was evaluated for a series of measurements to a maximum pressure of 5.6...

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Veröffentlicht in:Journal of applied physics 2018-06, Vol.123 (21)
Hauptverfasser: Stemshorn, Andrew K., Vohra, Yogesh K., Smith, Spencer J.
Format: Artikel
Sprache:eng
Schlagworte:
Alloys
Amorphous materials
Applied physics
Chemical elements
Crystallization
Crystallography
Devitrification
Diffraction
Glassy dynamics
MATERIALS SCIENCE
Metal oxides
Metallic glasses
Precipitates
Scanning electron microscopy
Structural analysis
Transition metals
X ray powder diffraction
X-rays
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Zusammenfassung:Changes in bulk crystallization behavior following devitrification at high pressure are investigated for a Fe78B13Si9 composition metallic glass using in-situ energy dispersive x-ray powder diffraction. Crystallization with time was evaluated for a series of measurements to a maximum pressure of 5.63 ± 0.15 GPa for the Fe78B13Si9 glass. Pressure was found to strongly affect onset bulk crystallization temperature Tx. Crystallization at each pressure was found to progress in two stages. In the first stage, α-Fe precipitates and in the second Fe2B forms while α-Fe continues to crystallize. Complementary high pressure room temperature studies were conducted.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.5024941