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Electrochemical corrosion behavior and mechanical properties of Ti-Ag biomedical alloys obtained by two powder metallurgy processing routes

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Electrochemical corrosion behavior and mechanical properties of Ti-Ag biomedical alloys obtained by two powder metallurgy processing routes

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dc.contributor.author Zambrano Carrullo, J. C. es_ES
dc.contributor.author Dalmau-Borrás, Alba es_ES
dc.contributor.author Amigó, Vicente es_ES
dc.contributor.author Navarro-Laboulais, J. es_ES
dc.contributor.author Pereira Falcón, C. es_ES
dc.date.accessioned 2021-07-29T03:31:04Z
dc.date.available 2021-07-29T03:31:04Z
dc.date.issued 2020-12 es_ES
dc.identifier.issn 1751-6161 es_ES
dc.identifier.uri http://hdl.handle.net/10251/170779
dc.description.abstract [EN] Titanium is frequently used as a biomaterial and the importance of Ti-Ag alloys has increased thanks to the antibacterial behavior of silver. In this study, Ti-Ag alloys (5, 10 and 15 wt% Ag) were obtained by two different powder metallurgy routes: blended elemental (BE) and mechanical alloying (MA). The influence of the powder mixture methodology on both microstructure and electrochemical behavior was analyzed. Powders were com-pacted at 600 and 900 MPa, respectively, and sintered at high vacuum for 3 h at 950 degrees C. The obtained Ti-Ag alloys were microstructurally characterized by Scanning Electron Microscopy (SEM), Energy Dispersive X-Ray Spectroscopy (EDS) and X-Ray Diffraction (XRD), and mechanically tested by hardness and bending tests. Electrochemical tests were run using a three-electrode cell in an artificial Fusayama saliva solution. Open-Circuit Potential (OCP), polarization curves, potentiostatic tests and Electrochemical Impedance Spectroscopy (EIS) techniques were employed to evaluate the corrosion resistance of the studied Ti-Ag alloys. The initial characteristics of powders before sintering and after blend/alloying modified the electrochemical behavior of the Ti-Ag-sintered alloys and were determined. The samples obtained with the BE powders better resisted corrosion than the MA samples, and this behavior was directly related to the quantity and distribution of intermetallic Ti2Ag. A large quantity of intermetallics present on both the edge and inside grains reduced the corrosion resistance of TiAg alloys. es_ES
dc.description.sponsorship The authors wish to thank the Generalitat Valenciana for support through PROMETEO 2016/040. Alba Dalmau acknowledges the Generalitat Valenciana for her grant (APOSTD/2017/051), the European Commission via FEDER funds to purchase equipment for research purposes in ISIRYM and the Ministry of Science, Innovation and Universities for the project RTI2018-097810-B-I00. Finally, they thank the Microscopy Service at Universitat Politecnica de Valencia in Spain. es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof Journal of the Mechanical Behavior of Biomedical Materials es_ES
dc.rights Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) es_ES
dc.subject Ti-Ag es_ES
dc.subject Powder metallurgy es_ES
dc.subject Mechanical alloying es_ES
dc.subject Corrosion es_ES
dc.subject Biomaterial es_ES
dc.subject.classification INGENIERIA QUIMICA es_ES
dc.subject.classification CIENCIA DE LOS MATERIALES E INGENIERIA METALURGICA es_ES
dc.title Electrochemical corrosion behavior and mechanical properties of Ti-Ag biomedical alloys obtained by two powder metallurgy processing routes es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.jmbbm.2020.104063 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/GVA//APOSTD%2F2017%2F051/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/GVA//PROMETEO%2F2016%2F040/ES/DESARROLLO DE ALEACIONES DE TITANIO Y MATERIALES CERAMICOS AVANZADOS PARA APLICACIONES BIOMEDICAS/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-097810-B-I00/ES/BIOCOMPATIBILIDAD DE NUEVAS ALEACIONES PULVIMETALURGICAS DE TITANIO OBTENIDAS POR TECNOLOGIAS AVANZADAS/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Mecánica y de Materiales - Departament d'Enginyeria Mecànica i de Materials es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto de Tecnología de Materiales - Institut de Tecnologia de Materials es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Química y Nuclear - Departament d'Enginyeria Química i Nuclear es_ES
dc.description.bibliographicCitation Zambrano Carrullo, JC.; Dalmau-Borrás, A.; Amigó, V.; Navarro-Laboulais, J.; Pereira Falcón, C. (2020). Electrochemical corrosion behavior and mechanical properties of Ti-Ag biomedical alloys obtained by two powder metallurgy processing routes. Journal of the Mechanical Behavior of Biomedical Materials. 112:1-10. https://doi.org/10.1016/j.jmbbm.2020.104063 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1016/j.jmbbm.2020.104063 es_ES
dc.description.upvformatpinicio 1 es_ES
dc.description.upvformatpfin 10 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 112 es_ES
dc.identifier.pmid 32911226 es_ES
dc.relation.pasarela S\417648 es_ES
dc.contributor.funder GENERALITAT VALENCIANA es_ES
dc.contributor.funder Agencia Estatal de Investigación es_ES
dc.contributor.funder European Regional Development Fund es_ES
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