Journal of Physical Studies 17(2), Article 2701 [5 pages] (2013) DOI: https://doi.org/10.30970/jps.17.2701 THE STUDIES OF PROCESSES STABILIZING STRUCTURE AND PROPERTIES OF METALLIC GLASSES UNDER EXTERNAL INFLUENCES V. I. Lysov, T. L.Tsaregradskaya, O. V. Turkov, G. V. Saenko Kyiv Taras Shevchenko National University, 64, Volodymyrska St., UA--01033, Kyiv, Ukraine

The experiments aimed at revealing the impact of thermal treatment (annealing, thermal cycling, cryogenic treatment) on the thermal stability range of amorphous alloys using a highly sensitive dilatometric technique have been conducted. The observed increase of the thermal stability range can be explained by the fact that the thermal treatment of amorphous alloys leads to an essential shift of the phase equlibrium in the heterogeneous system: amorphous matrix -- ‟frozen-in” crystallization centers. During thermal treatment, destruction and fragmentation occur in the ‟frozen-in” crystallization centers present in the original samples. The proposed method of thermal treatment allows to produce alloys in the nanocrystalline state, which is confirmed by the results of X-ray diffraction experiments.

PACS number(s): 74.70.Ad, 64.75.+g

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