Effect of the Processing Parameters on the Porosity and Mechanical Behavior of Titanium Samples with Bimodal Microstructure Produced via Hot Pressing

Commercially pure (c.p.) titanium grade IV with a bimodal microstructure is a promising material for biomedical implants. The influence of the processing parameters on the physical, microstructural, and mechanical properties was investigated. The bimodal microstructure was achieved from the blends o...

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Autores: Chávez-Vásconez, Ricardo, Lascano, Sheila, Sauceda, Sergio, Reyes-Valenzuela, Mauricio, Salvo, Christopher, Mangalaraja, Ramalinga Viswanathan, Gotor, F.J., Arévalo, Cristina, Torres, Yadir
Tipo de recurso: artículo
Fecha de publicación:2021
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/348559
Acceso en línea:http://hdl.handle.net/10261/348559
https://api.elsevier.com/content/abstract/scopus_id/85121682157
Access Level:acceso abierto
Palabra clave:Bimodal microstructure
Hot-pressing
Mechanical behavior
Mechanical milling
Porous titanium
Powder metallurgy
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spelling Effect of the Processing Parameters on the Porosity and Mechanical Behavior of Titanium Samples with Bimodal Microstructure Produced via Hot PressingChávez-Vásconez, RicardoLascano, SheilaSauceda, SergioReyes-Valenzuela, MauricioSalvo, ChristopherMangalaraja, Ramalinga ViswanathanGotor, F.J.Arévalo, CristinaTorres, YadirBimodal microstructureHot-pressingMechanical behaviorMechanical millingPorous titaniumPowder metallurgyCommercially pure (c.p.) titanium grade IV with a bimodal microstructure is a promising material for biomedical implants. The influence of the processing parameters on the physical, microstructural, and mechanical properties was investigated. The bimodal microstructure was achieved from the blends of powder particles with different sizes, while the porous structure was obtained using the space-holder technique (50 vol.% of ammonium bicarbonate). Mechanically milled powders (10 and 20 h) were mixed in 50 wt.% or 75 wt.% with c.p. titanium. Four different mixtures of powders were precompacted via uniaxial cold pressing at 400 MPa. Then, the specimens were sintered at 750 °C via hot pressing in an argon gas atmosphere. The presence of a bimodal microstructure, comprised of small-grain regions separated by coarse-grain ones, was confirmed by optical and scanning electron microscopies. The samples with a bimodal microstructure exhibited an increase in the porosity compared with the commercially available pure Ti. In addition, the hardness was increased while the Young's modulus was decreased in the specimens with 75 wt.% of the milled powders (20 h).This work was supported by the Agencia Nacional de Investigación y Desarrollo (ANID) of Chile government [grant number Fondecyt 11160865, and FONDEQUIP EQM130103 and EQM150101, and Scholarship Program/DOCTORADO/2021-21211274], and the Ministerio de Ciencia e Innovación of Spain under the grant PID2019-109371GB-I00.Peer reviewedMultidisciplinary Digital Publishing InstituteAgencia Nacional de Investigación y Desarrollo (Chile)Agencia Estatal de Investigación (España)Ministerio de Ciencia e Innovación (España)Gotor, Francisco José [0000-0002-8943-5291]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202420242021info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/348559https://api.elsevier.com/content/abstract/scopus_id/85121682157reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-109371GB-I00Materials (Basel, Switzerland)Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3485592026-05-22T06:33:51Z
dc.title.none.fl_str_mv Effect of the Processing Parameters on the Porosity and Mechanical Behavior of Titanium Samples with Bimodal Microstructure Produced via Hot Pressing
title Effect of the Processing Parameters on the Porosity and Mechanical Behavior of Titanium Samples with Bimodal Microstructure Produced via Hot Pressing
spellingShingle Effect of the Processing Parameters on the Porosity and Mechanical Behavior of Titanium Samples with Bimodal Microstructure Produced via Hot Pressing
Chávez-Vásconez, Ricardo
Bimodal microstructure
Hot-pressing
Mechanical behavior
Mechanical milling
Porous titanium
Powder metallurgy
title_short Effect of the Processing Parameters on the Porosity and Mechanical Behavior of Titanium Samples with Bimodal Microstructure Produced via Hot Pressing
title_full Effect of the Processing Parameters on the Porosity and Mechanical Behavior of Titanium Samples with Bimodal Microstructure Produced via Hot Pressing
title_fullStr Effect of the Processing Parameters on the Porosity and Mechanical Behavior of Titanium Samples with Bimodal Microstructure Produced via Hot Pressing
title_full_unstemmed Effect of the Processing Parameters on the Porosity and Mechanical Behavior of Titanium Samples with Bimodal Microstructure Produced via Hot Pressing
title_sort Effect of the Processing Parameters on the Porosity and Mechanical Behavior of Titanium Samples with Bimodal Microstructure Produced via Hot Pressing
dc.creator.none.fl_str_mv Chávez-Vásconez, Ricardo
Lascano, Sheila
Sauceda, Sergio
Reyes-Valenzuela, Mauricio
Salvo, Christopher
Mangalaraja, Ramalinga Viswanathan
Gotor, F.J.
Arévalo, Cristina
Torres, Yadir
author Chávez-Vásconez, Ricardo
author_facet Chávez-Vásconez, Ricardo
Lascano, Sheila
Sauceda, Sergio
Reyes-Valenzuela, Mauricio
Salvo, Christopher
Mangalaraja, Ramalinga Viswanathan
Gotor, F.J.
Arévalo, Cristina
Torres, Yadir
author_role author
author2 Lascano, Sheila
Sauceda, Sergio
Reyes-Valenzuela, Mauricio
Salvo, Christopher
Mangalaraja, Ramalinga Viswanathan
Gotor, F.J.
Arévalo, Cristina
Torres, Yadir
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Agencia Nacional de Investigación y Desarrollo (Chile)
Agencia Estatal de Investigación (España)
Ministerio de Ciencia e Innovación (España)
Gotor, Francisco José [0000-0002-8943-5291]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Bimodal microstructure
Hot-pressing
Mechanical behavior
Mechanical milling
Porous titanium
Powder metallurgy
topic Bimodal microstructure
Hot-pressing
Mechanical behavior
Mechanical milling
Porous titanium
Powder metallurgy
description Commercially pure (c.p.) titanium grade IV with a bimodal microstructure is a promising material for biomedical implants. The influence of the processing parameters on the physical, microstructural, and mechanical properties was investigated. The bimodal microstructure was achieved from the blends of powder particles with different sizes, while the porous structure was obtained using the space-holder technique (50 vol.% of ammonium bicarbonate). Mechanically milled powders (10 and 20 h) were mixed in 50 wt.% or 75 wt.% with c.p. titanium. Four different mixtures of powders were precompacted via uniaxial cold pressing at 400 MPa. Then, the specimens were sintered at 750 °C via hot pressing in an argon gas atmosphere. The presence of a bimodal microstructure, comprised of small-grain regions separated by coarse-grain ones, was confirmed by optical and scanning electron microscopies. The samples with a bimodal microstructure exhibited an increase in the porosity compared with the commercially available pure Ti. In addition, the hardness was increased while the Young's modulus was decreased in the specimens with 75 wt.% of the milled powders (20 h).
publishDate 2021
dc.date.none.fl_str_mv 2021
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/348559
https://api.elsevier.com/content/abstract/scopus_id/85121682157
url http://hdl.handle.net/10261/348559
https://api.elsevier.com/content/abstract/scopus_id/85121682157
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-109371GB-I00
Materials (Basel, Switzerland)
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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