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dc.contributor.author
Thürmer, Daniel
dc.contributor.author
Zhao, Shiteng
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Deluigi, Orlando Raul
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Stan, Camelia
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Alhafez, Iyad Alabd
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Urbassek, Herbert M.
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Meyers, Marc A.
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Bringa, Eduardo Marcial
dc.contributor.author
Gunkelmann, Nina
dc.date.available
2023-07-12T14:45:39Z
dc.date.issued
2022-02-25
dc.identifier.citation
Thürmer, Daniel; Zhao, Shiteng; Deluigi, Orlando Raul; Stan, Camelia; Alhafez, Iyad Alabd; et al.; Exceptionally high spallation strength for a high-entropy alloy demonstrated by experiments and simulations; Elsevier Science SA; Journal of Alloys and Compounds; 895; 25-2-2022; 1-8
dc.identifier.issn
0925-8388
dc.identifier.uri
http://hdl.handle.net/11336/203466
dc.description.abstract
High-entropy alloys are materials with an increasing number of technological applications. Amongst them, the Cantor alloy, FeMnCoCrNi, shows desirable mechanical properties at normal loading conditions. In this study we focus on the performance of the Cantor alloy at the ultra-high deformation rates of shock waves. We study shock-induced spallation using both experiments and atomistic simulations. Experimental loading is achieved using high power laser, with VISAR to obtain velocity profiles and spall strength, followed by transmission electron microscopy of the recovered samples. Molecular Dynamics (MD) simulations of shock-induced spallation are compared with experiments. Both experiments and simulations show a high spall strength which would be beneficial for certain applications, with experiments giving ~8 GPa at ~107s−1 and MD giving almost ~30 GPa at ~109s−1. The difference between experiments and simulations can be explained by the difference in strain rate. Post-mortem analysis of the experimental samples shows nanotwins near the spall plane, while MD simulations show a highly disordered region giving rise to void nucleation and spall during loading.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science SA
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
HIGH-ENTROPY ALLOYS
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MOLECULAR DYNAMICS
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SHOCK WAVES
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SPALLATION
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Otras Ciencias Físicas
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Exceptionally high spallation strength for a high-entropy alloy demonstrated by experiments and simulations
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-06-30T13:09:24Z
dc.journal.volume
895
dc.journal.pagination
1-8
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Thürmer, Daniel. Technische Universität Clausthal; Alemania
dc.description.fil
Fil: Zhao, Shiteng. University of California at Berkeley; Estados Unidos
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Fil: Deluigi, Orlando Raul. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina. Universidad de Mendoza; Argentina
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Fil: Stan, Camelia. Lawrence Livermore National Laboratory; Estados Unidos
dc.description.fil
Fil: Alhafez, Iyad Alabd. Technische Universität Kaiserslautern; Alemania
dc.description.fil
Fil: Urbassek, Herbert M.. Technische Universität Kaiserslautern; Alemania
dc.description.fil
Fil: Meyers, Marc A.. University of California at San Diego; Estados Unidos
dc.description.fil
Fil: Bringa, Eduardo Marcial. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina. Universidad de Mendoza; Argentina
dc.description.fil
Fil: Gunkelmann, Nina. Technische Universität Clausthal; Alemania
dc.journal.title
Journal of Alloys and Compounds
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0925838821039773
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.jallcom.2021.162567
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