Strain-dependent shear-band structure in a Zr-based bulk metallic glass. (1st January 2021)

• Record Type: Journal Article
• Authors: Liu, C.; Ikeda, Y.; Maaß, R.
• Is Part Of: Scripta materialia. Number 190(2021)
• Page Start: 75
• Page End: 79
• Publication Date: 2021-01-01
• Subjects: Metallic glass -- Shear bands -- Shear-band structure -- Shear strain -- Transmission electron microscopy; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2020.08.030
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: This work presents strong evidence for structural damage accumulation as a function of shear strain admitted by shear bands in a Zr-based bulk metallic glass. Analyzing the shear-band structure of shear-band segments that experienced shear strains covering four orders of magnitude with high-angle annular dark field transmission electron microscopy (HAADF-STEM) reveals strongly scattered data with on overall trend of increasing local volume dilatation with increasing shear strain. Locally, however, a variety of trends is observed, which underlines the strong heterogeneity of structural damage in shear bands in metallic glasses. Graphical abstract: Image, graphical abstract