Internal friction and elastic modulus change associated with structural relaxation and crystallization in amorphous Mg-Ni-Y alloys

Y. M. Soifer, N. P. Kobelev, E. Korin, L. Soifer, D. Mogilyanskii, A. Bettelheim

Research output: Contribution to journalConference articlepeer-review

Abstract

Mechanical spectroscopy technique has been applied to investigation of structural relaxation and crystallization of Mg-Ni-Y amorphous alloys of different composition. The composition of the alloys was varied due to change of yttrium concentration from 0 to 7 at.%. The internal friction (IF) and Young's modulus have been measured by a vibrating reed method at frequency of ∼200 Hz at heating and cooling runs in the temperature range from 300K to 650K. Crystallization kinetic studies of the alloys by DSC and XRD showed that the transition from amorphous to crystalline state in the Mg-Ni-Y alloys has gone through several stages with origination of intermediate phase. If spectra and Young's modulus of the alloys have been analyzed and the effect of yttrium content on the stability of intermediate phase was investigated.

Original languageEnglish
Pages (from-to)L11.3.1-L11.3.6
JournalMaterials Research Society Symposium Proceedings
Volume644
StatePublished - 1 Dec 2001
Externally publishedYes
EventSupercooled Liquid, Bulk Glassy and Nanocrystalline states of Alloys - Boston, MA, United States
Duration: 27 Nov 200030 Nov 2000

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