Abstract
The magnetostriction constant λ s, Curie temperature T c and relaxation kinetics were obtained for a nearly non-magnetostrictive metallic glass (Co 0.784Cr 0.156Fe 0.06) 78B 22 produced at three different quenching rates. It was found that λ s decreases and T c increases with increasing quenching rate. This contrasts with the usual behaviour of metallic glasses. The kinetics of relaxation are also anomalous because the Curie temperature vs. annealing-time curve of as-quenched samples exhibits a minimum. The shape of these curves depends on the quenching rate; the differences can be explained by a model of chronium moments antiferro-magnetically coupled to iron or cobalt moments.
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