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dc.contributor.author
Hofer, Juan Andres
dc.contributor.author
Ruestes, Carlos Javier
dc.contributor.author
Bringa, Eduardo Marcial
dc.contributor.author
Urbassek, Herbert M.
dc.date.available
2020-09-01T17:21:24Z
dc.date.issued
2020-01
dc.identifier.citation
Hofer, Juan Andres; Ruestes, Carlos Javier; Bringa, Eduardo Marcial; Urbassek, Herbert M.; Effect of subsurface voids on the nanoindentation of Fe crystals; IOP Publishing; Modelling And Simulation In Materials Science And Engineering; 28; 2; 1-2020; 1-18
dc.identifier.issn
0965-0393
dc.identifier.uri
http://hdl.handle.net/11336/112902
dc.description.abstract
Subsurface voids may strongly affect the response of materials to nanoindentation. We explore these effects for a bcc single-crystalline Fe sample using molecular dynamics simulation. Deformation occurs mainly by nucleation and propagation of dislocations. As dislocations impinge into the voids, these suffer a reduction in volume, consistent with mass transfer mechanisms. Our results show that voids act as highly efficient absorbers of dislocations, effectively limiting the extension of the plastic zone. Surprisingly, mechanical properties are marginally affected by the presence of voids in the range of sizes and spatial distributions tested, except for voids a few nanometers below the surface. Deformation twinning is observed as a transient effect in some cases; however, for voids close enough to the indentation area, no twinning was found.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
IOP Publishing
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
DISLOCATIONS
dc.subject
MOLECULAR DYNAMICS
dc.subject
NANOINDENTATION
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VOIDS
dc.subject.classification
Ingeniería de los Materiales
dc.subject.classification
Ingeniería de los Materiales
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
dc.title
Effect of subsurface voids on the nanoindentation of Fe crystals
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-06-30T14:16:58Z
dc.journal.volume
28
dc.journal.number
2
dc.journal.pagination
1-18
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Hofer, Juan Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina
dc.description.fil
Fil: Ruestes, Carlos Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Interdisciplinario de Ciencias Básicas. - Universidad Nacional de Cuyo. Instituto Interdisciplinario de Ciencias Básicas; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina
dc.description.fil
Fil: Bringa, Eduardo Marcial. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Universidad de Mendoza. Facultad de Ingeniería; Argentina. Universidad Mayor; Chile
dc.description.fil
Fil: Urbassek, Herbert M.. University Kaiserslautern; Alemania
dc.journal.title
Modelling And Simulation In Materials Science And Engineering
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.1088/1361-651X/ab6915/meta
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1088/1361-651X/ab6915
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