Strain-dependent shear-band structure in a Zr-based bulk metallic glass

被引：19

作者：

Liu, C. ^{[1
,2
]}

Ikeda, Y. ^{[1
,2
]}

Maass, R. ^{[1
,2
,3
]}

机构：

[1] Univ Illinois, Dept Mat Sci & Engn, 1304 W Green St, Urbana, IL 61801 USA

[2] Univ Illinois, Frederick Seitz Mat Res Lab, 1304 W Green St, Urbana, IL 61801 USA

[3] BAM Fed Inst Mat Res & Testing, Unter Eichen 87, D-12205 Berlin, Germany

来源：

SCRIPTA MATERIALIA | 2021年 / 190卷

关键词：

Metallic glass; Shear bands; Shear-band structure; Shear strain; Transmission electron microscopy; DEFORMATION; CAVITIES; DEFECTS;

D O I：

10.1016/j.scriptamat.2020.08.030

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

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. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：75 / 79

页数：5

共 29 条

[1] Shear band broadening in simulated glasses [J].

Alix-Williams, Darius D. ;

Falk, Michael L. .

PHYSICAL REVIEW E, 2018, 98 (05)

[2] Elemental re-distribution inside shear bands revealed by correlative atom-probe tomography and electron microscopy in a deformed metallic glass [J].

Balachandran, Shanoob ;

Orava, Jiri ;

Koehler, Mathias ;

Breen, Andrew J. ;

Kaban, Ivan ;

Raabe, Dierk ;

Herbig, Michael .

SCRIPTA MATERIALIA, 2019, 168 :14-18

[3] Shear bands in metallic glasses [J].

Greer, A. L. ;

Cheng, Y. Q. ;

Ma, E. .

MATERIALS SCIENCE & ENGINEERING R-REPORTS, 2013, 74 (04) :71-132

[4] Probing the Degree of Heterogeneity within a Shear Band of a Model Glass [J].

Hassani, Muhammad ;

Lagogianni, Alexandra E. ;

Varnik, Fathollah .

PHYSICAL REVIEW LETTERS, 2019, 123 (19)

[5] The influence of deformation on the medium-range order of a Zr-based bulk metallic glass characterized by variable resolution fluctuation electron microscopy [J].

Hilke, Sven ;

Roesner, Harald ;

Geissler, David ;

Gebert, Annett ;

Peterlechner, Martin ;

Wilde, Gerhard .

ACTA MATERIALIA, 2019, 171 :275-281

[6] Three-dimensional imaging of shear bands in bulk metallic glass composites [J].

Hunter, A. H. ;

Araullo-Peters, V. ;

Gibbons, M. ;

Restrepo, O. D. ;

Niezgoda, S. R. ;

Windl, W. ;

Flores, K. M. ;

Hofmann, D. C. ;

Marquis, E. A. .

JOURNAL OF MICROSCOPY, 2016, 264 (03) :304-310

[7] Mechanically-assisted nanocrystallization and defects in amorphous alloys: A high-resolution transmission electron microscopy study [J].

Jiang, WH ;

Atzmon, M .

SCRIPTA MATERIALIA, 2006, 54 (03) :333-336

[8] Temperature-dependent shear band dynamics in a Zr-based bulk metallic glass [J].

Klaumuenzer, David ;

Maass, Robert ;

Dalla Torre, Florian H. ;

Loeffler, Joerg F. .

APPLIED PHYSICS LETTERS, 2010, 96 (06)

[9] GROWTH OF SHEAR BANDS IN POLYSTYRENE [J].

KRAMER, EJ .

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 1975, 13 (03) :509-525

[10] Nanometre-scale defects in shear bands in a metallic glass [J].

Li, J ;

Spaepen, F ;

Hufnagel, TC .

PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 2002, 82 (13) :2623-2630

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