Open AccessOn the crystallization kinetics and micro-structural transformations of Fe40Ni38B18Mo4 alloys
Author(s) -
Hysen Thomas,
Senoy Thomas,
R.V. Ramanujan,
M. R. Anantharaman
Publication year - 2007
Publication title -
journal of materials science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.813
H-Index - 177
eISSN - 1573-4803
pISSN - 0022-2461
DOI - 10.1007/s10853-007-2154-0
Subject(s) - metglas , crystallization , materials science , amorphous metal , activation energy , annealing (glass) , thermodynamics , kinetics , solid mechanics , metallurgy , chemistry , composite material , physics , alloy , quantum mechanics
Activation energy for crystallization (E c) is a pertinent parameter that decides the application potential of many metallic glasses and is proportional to the crystallization temperature. Higher crystallization temperatures are desirable for soft magnetic applications, while lower values for data storage purposes. In this investigation, from the heating rate dependence of peak crystallization temperature T p, the E c values have been evaluated by three different methods for metglas 2826 MB (Fe40Ni38B18Mo4) accurately. The E c values are correlated with the morphological changes, and the structural evolution associated with annealing temperatures is discussed.
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