Fast relaxation in metallic glasses studied by measurements of the internal friction at high frequencies

Autor:	Afonin, G. V., Qiao, J. C., Makarov, A. S., Kobelev, N. P., Khonik, V. A.
Rok vydání:	2024
Předmět:	Condensed Matter - Disordered Systems and Neural Networks
Druh dokumentu:	Working Paper
Popis:	We performed high-frequency (0.4 to 1.7 MHz) measurements of the internal friction (IF) on 14 bulk metallic glasses (MGs). It is found that 12 of these MGs display relaxation IF peaks at temperatures T= 400-500 K, which are weakly affected by heat treatment within the amorphous state. The corresponding relaxation time is about 0.3 microseconds. This fast relaxation is reported for the first time in the literature. The apparent activation enthalpy for 4 MGs is determined. Comment: 15 pages, 4 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2404.17948 Zobrazit plný text záznamu View this record from Arxiv