Probing shear-band initiation in metallic glasses

D. Klaumünzer, A. Lazarev, R. Maaß, F. H. Dalla Torre, A. Vinogradov, J. F. Löffler

Research output: Contribution to journalArticlepeer-review


In situ acoustic emission monitoring is shown to capture the initiation of shear bands in metallic glasses. A model picture is inferred from stick-slip flow in granular media such that the origin of acoustic emission is attributed to a mechanism of structural dilatation. By employing a quantitative approach, the critical volume change associated with shear-band initiation in a metallic glass is estimated to be a few percent only. This result agrees with typical values of excess free volume found in the supercooled liquid regime near the glass transition temperature.

Original languageEnglish (US)
Article number185502
JournalPhysical review letters
Issue number18
StatePublished - Oct 25 2011
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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