Elastic and dissipative properties of amorphous and nanocrystalline Mg-Ni-Y alloy

Y. M. Soifer, N. P. Kobelev, I. G. Brodova, A. N. Manukhin, E. Korin, L. Soifer

Research output: Contribution to journalConference articlepeer-review

3 Scopus citations

Abstract

The internal friction and Young's modulus of amorphous Mg84Ni12.5Y3.5 alloy obtained by the melt spinning technique have been measured by a vibrating reed method at frequency of 250 Hz at heating and cooling runs in the temperature range from 300 K to 625 K. The crystallization kinetics of the alloy was studied by the calorimetric methods (DSC and DTA). The structure of the samples was determined by the x-ray diffraction technique. The Young modulus measurements have revealed the irreversible multi-step changes (up to 50%) accompanied by the irreversible internal friction peaks. These changes were observed in the same temperature intervals where the anomalies of thermal properties were found out. The results obtained are explained by the structural rearrangement from amorphous to nanocrystalline state during the annealing.

Original languageEnglish
Pages (from-to)293-298
Number of pages6
JournalMaterials Research Society Symposium Proceedings
Volume554
StatePublished - 1 Dec 1999
EventProceedings of the 1998 MRS Fall Meeting - Symposium MM on'Bulk Metallic Glasses' - Boston, MA, USA
Duration: 1 Dec 19983 Dec 1998

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