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Reversible structural relaxation in Fe‐Ni‐B‐Si metallic glasses
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5.The thermal effects of structural relaxation are clearly distinguished from crystallization and the Curie transition. occurs well above the temperature studied and the Curie transition has a characteristic signal over about 10 K.
6.Inoue et al. (Ref. 2) state that the reversible effect is decreased by preannealing, in direct contradiction with our findings. We believe that the reason for this, as will be discussed below in detail, is that their preannealing is carried out at such high temperature that some crystallization was inevitable.
7.In contrast to its behavior with composition, the reversible effect increases slightly with annealing temperature after the appearance of crystallization. It reaches its maximum when is between 30 and 80 K higher than the value which first induces some crystallization. Clearly, the enhanced kinetics at the higher temperature more than offset the decrease due to crystallization.
8.A second maximum of at annealing temperatures close to has been reported in Ref. 2. Repeating these measurements, we find that what was measured was crystallization enthalpy, and the results have nothing to do with reversible processes.
9.R. O. Suzuki and P. H. Shingu, in Liquid and Amorphous Metals V, edited by C. N. J. Wagner and W. L. Johnson (North‐Holland, Amsterdam, 1984), p. 1003.
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12.H. Kronmüller and N. Moser, in Rapidly Quenched Metals V, edited by S. Steeb and H. Warlimont (North‐Holland, Amsterdam, 1985), p. 603.
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16.H. Q. Guo, H. Kronmüller, N. Moser, and A. Hofmann, Scr. Metall. 20, 185 (1986).
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