G. V. Afonin, J. C. Qiao, A. S. Makarov, N. P. Kobelev, V. A. Khonik
{"title":"Fast relaxation in metallic glasses studied by measurements of the internal friction at high frequencies","authors":"G. V. Afonin, J. C. Qiao, A. S. Makarov, N. P. Kobelev, V. A. Khonik","doi":"arxiv-2404.17948","DOIUrl":null,"url":null,"abstract":"We performed high-frequency (0.4 to 1.7 MHz) measurements of the internal\nfriction (IF) on 14 bulk metallic glasses (MGs). It is found that 12 of these\nMGs display relaxation IF peaks at temperatures T= 400-500 K, which are weakly\naffected by heat treatment within the amorphous state. The corresponding\nrelaxation time is about 0.3 microseconds. This fast relaxation is reported for\nthe first time in the literature. The apparent activation enthalpy for 4 MGs is\ndetermined.","PeriodicalId":501066,"journal":{"name":"arXiv - PHYS - Disordered Systems and Neural Networks","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - PHYS - Disordered Systems and Neural Networks","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2404.17948","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
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.
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