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The influence of cryo-treatment is investigated according to some magnetic and thermal properties of Fe40Ni40Si6B14 glassy alloy. Saturation magnetization (MS), amorphous Curie temperature (TC am) heat capacity (Cp) and the width of crystallization exotherm peak were measured before and after the cryo-treatment. The treatment causes a very stable structural imprint in the investigated properties. Not all property changes are completely irreversible, however. The TC am exhibits a very slow, viscous reconstruction during subsequent isothermal or cyclic heat treatments. The heat capacity of cryo-treated samples increases compared to the nontreated ones. Due to the low temperature treatment the kinetic of crystallization changes also, which is manifested in the shift of half width of crystallization peak. The magnitude of the LN treatment induced effects depends on the whole thermal history of the sample.

The concentration dependence of saturation magnetostriction and saturation polarisation for amorphous Fe/sub 85-x/Pt/sub x/B/sub 15/ (x=0, 1, 3, 5) alloys were measured at room temperature. It was found that saturation magnetostriction in the series of glassy alloys increases with increasing Pt content. We suggest that this behaviour is connected with the perturbation of the Fe-B glassy matrix by the Pt atoms. The polarisation versus temperature scans support an exceptional role of Pt in the Fe-Pt-B amorphous alloy, too. >

Experimental results show that most of the physical properties of the metallic glass ribbons depend on the processing conditions. Here, the variation of Curie temperature will be investigated as a function of quenching conditions. Though these alterations are relatively small compared with the change obtained during structural relaxation, the quenched-in differences are conserved in the specimens even after high temperature annealing near the glass transition.