Open AccessStudy on structure relaxation of Zr5555Cu3030Al10 10Ni55bulk amorphous alloy
Author(s) -
Yi Liu,
Wu Zi-Fang,
Lin Liu,
Tao Zhang
Publication year - 2005
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.54.1679
Subject(s) - annealing (glass) , materials science , amorphous solid , enthalpy , alloy , amorphous metal , relaxation (psychology) , activation energy , density of states , synchrotron radiation , scattering , condensed matter physics , synchrotron , thermodynamics , crystallography , chemistry , optics , physics , metallurgy , psychology , social psychology
The structure relaxation of Zr5555Cu3030Al1010Ni55 bulk amorphous alloy annealed at 340℃ for different times have been investigated by synchrotron radiation small angle x-ray scattering and differential scanning calorimetr y. Annealing time dependence of electronic density fluctuation in the amorphous alloy and apparent activation energies for the enthalpy relaxation were presente d and discussed. The experimental results show that electronic density fluctuati ons increase first and then decrease with increasing annealing time, while the a pparent activation energy for the enthalpy relaxation exhibits an opposite chang e, i.e., decreases first and then increases. Both indicate the transformatio n from the liquid-like region to the solid-like region in amorphous alloy duri ng annealing.