Shock waves in polycrystalline iron: Plasticity and phase transitions
- Autores
- Gunkelmann, Nina; Bringa, Eduardo Marcial; Tramontina Videla, Diego Ramiro; Ruestes, Carlos Javier; Suggit, Mathew J.; Higginbotham, Andrew; Wark, Justin S.; Urbassek, Herbert M.
- Año de publicación
- 2014
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- At a pressure of around 13 GPa iron undergoes a structural phase transition from the bcc to the hexagonal close-packed phase. Atomistic simulations have provided important insights into this transition. However, while experiments in polycrystals show clear evidence that the α-ε transition is preceded by plasticity, simulations up to now could not detect any plastic activity occurring before the phase change. Here we study shock waves in polycrystalline Fe using an interatomic potential which incorporates the α-ε transition faithfully. Our simulations show that the phase transformation is preceded by dislocation generation at grain boundaries, giving a three-wave profile. The α-ε transformation pressure is much higher than the equilibrium transformation pressure but decreases slightly with increasing loading ramp time (decreasing strain rate). The transformed phase is mostly composed of hcp grains with large defect density. Simulated x-ray diffraction displays clear evidence for this hcp phase, with powder-diffraction-type patterns as they would be seen using current experimental setups.
Fil: Gunkelmann, Nina. University of Kaiserlautern; Alemania. Friedrich-Alexander-Universität; Alemania
Fil: Bringa, Eduardo Marcial. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina
Fil: Tramontina Videla, Diego Ramiro. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina
Fil: Ruestes, Carlos Javier. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina
Fil: Suggit, Mathew J.. University of Oxford. Department of Physics; Reino Unido
Fil: Higginbotham, Andrew. University of Oxford. Department of Physics; Reino Unido
Fil: Wark, Justin S.. University of Oxford. Department of Physics; Reino Unido
Fil: Urbassek, Herbert M.. University of Kaiserlautern; Alemania - Materia
-
Iron
Shock-Waves
Molecular Dynamics - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/32279
Ver los metadatos del registro completo
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Shock waves in polycrystalline iron: Plasticity and phase transitionsGunkelmann, NinaBringa, Eduardo MarcialTramontina Videla, Diego RamiroRuestes, Carlos JavierSuggit, Mathew J.Higginbotham, AndrewWark, Justin S.Urbassek, Herbert M.IronShock-WavesMolecular Dynamicshttps://purl.org/becyt/ford/2.10https://purl.org/becyt/ford/2At a pressure of around 13 GPa iron undergoes a structural phase transition from the bcc to the hexagonal close-packed phase. Atomistic simulations have provided important insights into this transition. However, while experiments in polycrystals show clear evidence that the α-ε transition is preceded by plasticity, simulations up to now could not detect any plastic activity occurring before the phase change. Here we study shock waves in polycrystalline Fe using an interatomic potential which incorporates the α-ε transition faithfully. Our simulations show that the phase transformation is preceded by dislocation generation at grain boundaries, giving a three-wave profile. The α-ε transformation pressure is much higher than the equilibrium transformation pressure but decreases slightly with increasing loading ramp time (decreasing strain rate). The transformed phase is mostly composed of hcp grains with large defect density. Simulated x-ray diffraction displays clear evidence for this hcp phase, with powder-diffraction-type patterns as they would be seen using current experimental setups.Fil: Gunkelmann, Nina. University of Kaiserlautern; Alemania. Friedrich-Alexander-Universität; AlemaniaFil: Bringa, Eduardo Marcial. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; ArgentinaFil: Tramontina Videla, Diego Ramiro. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; ArgentinaFil: Ruestes, Carlos Javier. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; ArgentinaFil: Suggit, Mathew J.. University of Oxford. Department of Physics; Reino UnidoFil: Higginbotham, Andrew. University of Oxford. Department of Physics; Reino UnidoFil: Wark, Justin S.. University of Oxford. Department of Physics; Reino UnidoFil: Urbassek, Herbert M.. University of Kaiserlautern; AlemaniaAmerican Physical Society2014-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/32279Gunkelmann, Nina; Bringa, Eduardo Marcial; Tramontina Videla, Diego Ramiro; Ruestes, Carlos Javier; Suggit, Mathew J.; et al.; Shock waves in polycrystalline iron: Plasticity and phase transitions; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 89; 14; 4-2014; 140102-1401021098-01212469-9969CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://journals.aps.org/prb/abstract/10.1103/PhysRevB.89.140102info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.89.140102info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:20:20Zoai:ri.conicet.gov.ar:11336/32279instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:20:21.016CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Shock waves in polycrystalline iron: Plasticity and phase transitions |
title |
Shock waves in polycrystalline iron: Plasticity and phase transitions |
spellingShingle |
Shock waves in polycrystalline iron: Plasticity and phase transitions Gunkelmann, Nina Iron Shock-Waves Molecular Dynamics |
title_short |
Shock waves in polycrystalline iron: Plasticity and phase transitions |
title_full |
Shock waves in polycrystalline iron: Plasticity and phase transitions |
title_fullStr |
Shock waves in polycrystalline iron: Plasticity and phase transitions |
title_full_unstemmed |
Shock waves in polycrystalline iron: Plasticity and phase transitions |
title_sort |
Shock waves in polycrystalline iron: Plasticity and phase transitions |
dc.creator.none.fl_str_mv |
Gunkelmann, Nina Bringa, Eduardo Marcial Tramontina Videla, Diego Ramiro Ruestes, Carlos Javier Suggit, Mathew J. Higginbotham, Andrew Wark, Justin S. Urbassek, Herbert M. |
author |
Gunkelmann, Nina |
author_facet |
Gunkelmann, Nina Bringa, Eduardo Marcial Tramontina Videla, Diego Ramiro Ruestes, Carlos Javier Suggit, Mathew J. Higginbotham, Andrew Wark, Justin S. Urbassek, Herbert M. |
author_role |
author |
author2 |
Bringa, Eduardo Marcial Tramontina Videla, Diego Ramiro Ruestes, Carlos Javier Suggit, Mathew J. Higginbotham, Andrew Wark, Justin S. Urbassek, Herbert M. |
author2_role |
author author author author author author author |
dc.subject.none.fl_str_mv |
Iron Shock-Waves Molecular Dynamics |
topic |
Iron Shock-Waves Molecular Dynamics |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/2.10 https://purl.org/becyt/ford/2 |
dc.description.none.fl_txt_mv |
At a pressure of around 13 GPa iron undergoes a structural phase transition from the bcc to the hexagonal close-packed phase. Atomistic simulations have provided important insights into this transition. However, while experiments in polycrystals show clear evidence that the α-ε transition is preceded by plasticity, simulations up to now could not detect any plastic activity occurring before the phase change. Here we study shock waves in polycrystalline Fe using an interatomic potential which incorporates the α-ε transition faithfully. Our simulations show that the phase transformation is preceded by dislocation generation at grain boundaries, giving a three-wave profile. The α-ε transformation pressure is much higher than the equilibrium transformation pressure but decreases slightly with increasing loading ramp time (decreasing strain rate). The transformed phase is mostly composed of hcp grains with large defect density. Simulated x-ray diffraction displays clear evidence for this hcp phase, with powder-diffraction-type patterns as they would be seen using current experimental setups. Fil: Gunkelmann, Nina. University of Kaiserlautern; Alemania. Friedrich-Alexander-Universität; Alemania Fil: Bringa, Eduardo Marcial. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina Fil: Tramontina Videla, Diego Ramiro. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina Fil: Ruestes, Carlos Javier. Universidad Nacional de Cuyo. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina Fil: Suggit, Mathew J.. University of Oxford. Department of Physics; Reino Unido Fil: Higginbotham, Andrew. University of Oxford. Department of Physics; Reino Unido Fil: Wark, Justin S.. University of Oxford. Department of Physics; Reino Unido Fil: Urbassek, Herbert M.. University of Kaiserlautern; Alemania |
description |
At a pressure of around 13 GPa iron undergoes a structural phase transition from the bcc to the hexagonal close-packed phase. Atomistic simulations have provided important insights into this transition. However, while experiments in polycrystals show clear evidence that the α-ε transition is preceded by plasticity, simulations up to now could not detect any plastic activity occurring before the phase change. Here we study shock waves in polycrystalline Fe using an interatomic potential which incorporates the α-ε transition faithfully. Our simulations show that the phase transformation is preceded by dislocation generation at grain boundaries, giving a three-wave profile. The α-ε transformation pressure is much higher than the equilibrium transformation pressure but decreases slightly with increasing loading ramp time (decreasing strain rate). The transformed phase is mostly composed of hcp grains with large defect density. Simulated x-ray diffraction displays clear evidence for this hcp phase, with powder-diffraction-type patterns as they would be seen using current experimental setups. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-04 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/32279 Gunkelmann, Nina; Bringa, Eduardo Marcial; Tramontina Videla, Diego Ramiro; Ruestes, Carlos Javier; Suggit, Mathew J.; et al.; Shock waves in polycrystalline iron: Plasticity and phase transitions; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 89; 14; 4-2014; 140102-140102 1098-0121 2469-9969 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/32279 |
identifier_str_mv |
Gunkelmann, Nina; Bringa, Eduardo Marcial; Tramontina Videla, Diego Ramiro; Ruestes, Carlos Javier; Suggit, Mathew J.; et al.; Shock waves in polycrystalline iron: Plasticity and phase transitions; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 89; 14; 4-2014; 140102-140102 1098-0121 2469-9969 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://journals.aps.org/prb/abstract/10.1103/PhysRevB.89.140102 info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.89.140102 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
American Physical Society |
publisher.none.fl_str_mv |
American Physical Society |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844614182766379008 |
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13.070432 |