On Temperature Rise Within the Shear Bands in Bulk Metallic Glasses

A. I. Bazlov*, A. Yu Churyumov, M. Buchet, D. V. Louzguine-Luzgin

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

Room temperature deformation process in a bulk metallic glassy sample was studied by using a hydraulic thermomechanical simulator. The temperature rise during each separate shear band propagation event was measured with a high data acquisition frequency by a thermocouple welded to the sample. Calculation showed that when propagation of the well developed shear bands takes place along the entire sample the temperature inside the shear band should be close to the glass-transition temperature. It was also possible to resolve the temporal stress distribution and a double-stage character of stress drops was also observed. The obtained results are compared with the literature data obtained by infrared camera measurements and the results of finite elements modeling.

Original languageEnglish
Pages (from-to)481-488
Number of pages8
JournalMetals and Materials International
Volume24
Issue number3
DOIs
Publication statusPublished - 1 May 2018
Externally publishedYes

Keywords

  • Computer simulations
  • Deformation
  • Metallic glasses
  • Shear bands
  • Temperature rise

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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