Выпуски

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2012

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том 10 / 

выпуск 3

 



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В. І. Лисов, Т. Л. Цареградська, О. В. Турков, Г. В. Саєнко
«Вплив термічного та пластичного оброблення на температурно-часову стабільність аморфних стопів»
437–446 (2012)

PACS numbers: 61.43.Dq, 64.75.Nx, 81.05.Bx, 81.30.Mh, 81.40.Vw, 81.70.Bt

The results of investigation of influence of the isothermal annealing, thermocycling, and pressure treatment on temperature–temporal stability of amorphous alloys are presented. As shown, the thermocycling (three cycles of heating to the temperature T???Tk???50 К with the subsequent cooling to the room temperature) increases the temperature of intensive-crystallization beginning, Tk, by 15–20 К. The isothermal annealing during 1 hour at temperature T???Tk???50 К extends the interval of thermal stability up on 20–60 К, and pressure treatment up to 225 MPa extends it up on 20 К. Enhance of thermal stability of amorphous alloys under influence of heat treatment and pressure treatment can be explained by downsizing of the ‘freeze-in’ centres of crystallization appearing in an amorphous phase and forming of the nanostructural state.

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