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Pressure effect on crystallization of metallic glass Fe72P11C6Al5B4Ga2 alloy with wide supercooled liquid region

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9 Author(s)
Jiang, J.Z. ; Department of Physics, Building 307, Technical University of Denmark, DK-2800 Lyngby, Denmark ; Olsen, J.S. ; Gerward, L. ; Abdali, S.
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The effect of pressure on the crystallization behavior of metallic glass Fe72P11C6Al5B4Ga2 alloy with a wide supercooled liquid region has been investigated by in situ high-pressure and high-temperature x-ray diffraction measurements using synchrotron radiation. In the pressure range from 0 to 2.4 GPa, the crystallization temperature, Tx, increases with pressure, p, having a slope of 30 K/GPa while a minimum in Tx was detected in the range from 2.4 to 3.9 GPa. With a further increase of p, Tx is independent of p. The Tx vs p behavior can be qualitatively explained by the suppression of atomic mobility and changes of the Gibbs free energy of various phases with pressure. © 2000 American Institute of Physics.

Published in:
Journal of Applied Physics  (Volume:87 ,  Issue: 5 )

Date of Publication: Mar 2000

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