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

Balachandran, Shanoob; Orava, Jiri; Köhler, Mathias; Breen, Andrew J.; Kaban, Ivan; Raabe, Dierk; Herbig, Michael

doi:10.1016/j.scriptamat.2019.04.014

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

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Balachandran, Shanoob
Materials Science of Mechanical Contacts, Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society;

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Köhler, Mathias
Atom Probe Tomography, Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society;

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Breen, Andrew J.
Atom Probe Tomography, Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society;

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Raabe, Dierk
Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society;

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Herbig, Michael
Materials Science of Mechanical Contacts, Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society;

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Citation

Balachandran, S., Orava, J., Köhler, M., Breen, A. J., Kaban, I., Raabe, D., et al. (2019). Elemental re-distribution inside shear bands revealed by correlative atom-probe tomography and electron microscopy in a deformed metallic glass. Scripta Materialia, 168, 14-18. doi:10.1016/j.scriptamat.2019.04.014.

Cite as: https://hdl.handle.net/21.11116/0000-0003-ACF1-B

Abstract

A density variation in shear bands visible by electron microscopy is correlated with compositionally altered locations measured by atom-probe tomography in plastically-deformed Al 85.6 Y 7.5 Fe 5.8 metallic-glass ribbons. Two compositionally distinct regions are identified along shear bands, one is Al-rich (~92 at.), the other is Al-depleted (~82.5 at.) and both regions show marginal concentration fluctuations of Y and Fe. The elemental re-distribution is observed within shear bands only, and no chemical exchange with the surrounding glassy matrix is observed. © 2019