Defects and stresses in amorphous materials

A.V.Paustovsky, Yu.V.Gubin, Yu.A.Kunitsky*

I.N.Frantsevich Institute of Materials Science Problems, National Academy of Sciences of Ukraine, 3 Krzhizhanovsky St., 252601 Kyiv, Ukraine
*National Technical University, 252056 Kyiv, Ukraine

Received April 25, 1998

The physical model of stress development in amorphous alloys is considered. The matrix elastic energy Ualpha*beta(R) and that of the surface tension of structure inhomogeneities DELTA H are found to be similar in magnitude and to amount from 5 to 20 kJ/mol. The quenching stress level has been estimated and changes in sigmaij due to thermal factors found basing on the analysis of electron-microscopic images of amorphous alloys of different compositions using the coherent Fourier spectroscopy. Specific features of the kinetics and mechanism of the structural relaxation and crystallization of some amorphous alloys have been considered.

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