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dc.contributor.author
Alabd Alhafez, Iyad
dc.contributor.author
Ruestes, Carlos Javier
dc.contributor.author
Urbassek, Herbert M.
dc.date.available
2019-11-08T22:21:54Z
dc.date.issued
2018-03
dc.identifier.citation
Alabd Alhafez, Iyad; Ruestes, Carlos Javier; Urbassek, Herbert M.; Size of the Plastic Zone Produced by Nanoscratching; Springer/Plenum Publishers; Tribology Letters; 66; 1; 3-2018; 1-12
dc.identifier.issn
1023-8883
dc.identifier.uri
http://hdl.handle.net/11336/88393
dc.description.abstract
Nanoscratching of ductile materials creates plastic zones surrounding the scratch groove. We approximate the geometry of these zones by a semicylinder with its axis oriented along the scratch direction. The radius and the length of the cylinder, as well as the length of the dislocations in the network created quantify the plasticity generated. Using molecular dynamics simulations, we characterize the plastic zones in six metals with fcc, bcc, and hcp crystal structures. We find that the plastic zone sizes after scratch are comparable to those after indent. Due to dislocation reactions, the dislocation networks simplify, reducing the total length of dislocations. As a consequence, the average dislocation density in the plastic zone stays roughly constant. Individually, we find exceptions from this simple picture. Fcc metals show strong plastic activity, which even increases during scratch. The hcp metals on the other side show the least plastic activity. Here the plasticity may be strongly reduced during scratch and particularly during tip withdrawal.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer/Plenum Publishers
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
DISLOCATIONS
dc.subject
MOLECULAR DYNAMICS
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NANOINDENTATION
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PLASTICITY
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SCRATCHING
dc.subject.classification
Ingeniería de los Materiales
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Ingeniería de los Materiales
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INGENIERÍAS Y TECNOLOGÍAS
dc.title
Size of the Plastic Zone Produced by Nanoscratching
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-10-23T21:39:50Z
dc.identifier.eissn
1573-2711
dc.journal.volume
66
dc.journal.number
1
dc.journal.pagination
1-12
dc.journal.pais
Estados Unidos
dc.description.fil
Fil: Alabd Alhafez, Iyad. University Kaiserslautern; Alemania
dc.description.fil
Fil: Ruestes, Carlos Javier. Universidad Nacional de Cuyo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina
dc.description.fil
Fil: Urbassek, Herbert M.. University Kaiserslautern; Alemania
dc.journal.title
Tribology Letters
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s11249-017-0967-9
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs11249-017-0967-9
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