Medium-range order dictates local hardness in bulk metallic glasses

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Medium-range order dictates local hardness in bulk metallic glasses. / Nomoto, Keita; Ceguerra, Anna V.; Gammer, Christoph et al.
In: Materials today, Vol. 44.2021, No. April, 04.2021, p. 48-57.

Research output: Contribution to journalArticleResearchpeer-review

Harvard

Nomoto, K, Ceguerra, AV, Gammer, C, Li, B, Bilal, H, Hohenwarter, A, Gludovatz, B, Eckert, J, Ringer, SP & Kruzic, JJ 2021, 'Medium-range order dictates local hardness in bulk metallic glasses', Materials today, vol. 44.2021, no. April, pp. 48-57. https://doi.org/10.1016/j.mattod.2020.10.032

APA

Nomoto, K., Ceguerra, A. V., Gammer, C., Li, B., Bilal, H., Hohenwarter, A., Gludovatz, B., Eckert, J., Ringer, S. P., & Kruzic, J. J. (2021). Medium-range order dictates local hardness in bulk metallic glasses. Materials today, 44.2021(April), 48-57. https://doi.org/10.1016/j.mattod.2020.10.032

Vancouver

Nomoto K, Ceguerra AV, Gammer C, Li B, Bilal H, Hohenwarter A et al. Medium-range order dictates local hardness in bulk metallic glasses. Materials today. 2021 Apr;44.2021(April):48-57. Epub 2021 Jan 12. doi: 10.1016/j.mattod.2020.10.032

Author

Nomoto, Keita ; Ceguerra, Anna V. ; Gammer, Christoph et al. / Medium-range order dictates local hardness in bulk metallic glasses. In: Materials today. 2021 ; Vol. 44.2021, No. April. pp. 48-57.

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@article{294784fcd3bf4583a95b000d1aa0462f,
title = "Medium-range order dictates local hardness in bulk metallic glasses",
abstract = "Bulk metallic glasses (BMGs) are materials with outstanding strength and elastic properties that make them tantalizing for engineering applications, yet our poor understanding of how their amorphous atomic arrangements control their broader mechanical properties (hardness, wear, fracture, etc.) impedes our ability to apply materials science principles in their design. In this work, we uncover the hierarchical structure that exists in BMGs across the nano- to microscale by using nanobeam electron diffraction experiments. Our findings reveal that local hardness of microscale domains decreases with increasing size and volume fraction of atomic clusters with higher local medium range order (MRO). Furthermore, we propose a model of ductile phase softening that will enable the future design of BMGs by tuning the MRO size and distribution in the nanostructure.",
author = "Keita Nomoto and Ceguerra, {Anna V.} and Christoph Gammer and Bosong Li and Huma Bilal and Anton Hohenwarter and Bernd Gludovatz and J{\"u}rgen Eckert and Ringer, {Simon P.} and Kruzic, {Jamie J.}",
note = "Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",
year = "2021",
month = apr,
doi = "10.1016/j.mattod.2020.10.032",
language = "English",
volume = "44.2021",
pages = "48--57",
journal = "Materials today",
issn = "1369-7021",
publisher = "Elsevier",
number = "April",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Medium-range order dictates local hardness in bulk metallic glasses

AU - Nomoto, Keita

AU - Ceguerra, Anna V.

AU - Gammer, Christoph

AU - Li, Bosong

AU - Bilal, Huma

AU - Hohenwarter, Anton

AU - Gludovatz, Bernd

AU - Eckert, Jürgen

AU - Ringer, Simon P.

AU - Kruzic, Jamie J.

N1 - Publisher Copyright: © 2020 Elsevier Ltd

PY - 2021/4

Y1 - 2021/4

N2 - Bulk metallic glasses (BMGs) are materials with outstanding strength and elastic properties that make them tantalizing for engineering applications, yet our poor understanding of how their amorphous atomic arrangements control their broader mechanical properties (hardness, wear, fracture, etc.) impedes our ability to apply materials science principles in their design. In this work, we uncover the hierarchical structure that exists in BMGs across the nano- to microscale by using nanobeam electron diffraction experiments. Our findings reveal that local hardness of microscale domains decreases with increasing size and volume fraction of atomic clusters with higher local medium range order (MRO). Furthermore, we propose a model of ductile phase softening that will enable the future design of BMGs by tuning the MRO size and distribution in the nanostructure.

AB - Bulk metallic glasses (BMGs) are materials with outstanding strength and elastic properties that make them tantalizing for engineering applications, yet our poor understanding of how their amorphous atomic arrangements control their broader mechanical properties (hardness, wear, fracture, etc.) impedes our ability to apply materials science principles in their design. In this work, we uncover the hierarchical structure that exists in BMGs across the nano- to microscale by using nanobeam electron diffraction experiments. Our findings reveal that local hardness of microscale domains decreases with increasing size and volume fraction of atomic clusters with higher local medium range order (MRO). Furthermore, we propose a model of ductile phase softening that will enable the future design of BMGs by tuning the MRO size and distribution in the nanostructure.

UR - http://www.scopus.com/inward/record.url?scp=85099304796&partnerID=8YFLogxK

U2 - 10.1016/j.mattod.2020.10.032

DO - 10.1016/j.mattod.2020.10.032

M3 - Article

AN - SCOPUS:85099304796

VL - 44.2021

SP - 48

EP - 57

JO - Materials today

JF - Materials today

SN - 1369-7021

IS - April

ER -