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Laser Surface Modification in Ti-xNb-yMo Alloys Prepared by Powder Metallurgy
dc.contributor.author | Tendero, Inmaculada | |
dc.contributor.author | Rossi, Mariana | |
dc.contributor.author | Viera, Mauricio | |
dc.contributor.author | Amado, José | |
dc.contributor.author | Tobar, M.J. | |
dc.contributor.author | Vicente-Escuder, Ángel | |
dc.contributor.author | Yáñez, Armando | |
dc.contributor.author | Amigó, Vicente | |
dc.date.accessioned | 2021-04-07T17:30:25Z | |
dc.date.available | 2021-04-07T17:30:25Z | |
dc.date.issued | 2021-02 | |
dc.identifier.citation | Tendero, I.; Rossi, M.C.; Viera, M.; Amado, J.M.; Tobar, M.J.; Vicente, Á.; Yañez, A.; Amigó, V. Laser Surface Modification in Ti-xNb-yMo Alloys Prepared by Powder Metallurgy. Metals 2021, 11, 367. https://doi.org/10.3390/met11020367 | |
dc.identifier.issn | 2075-4701 | |
dc.identifier.uri | http://hdl.handle.net/2183/27690 | |
dc.description.abstract | [Abstract] The main objective was to study the effect of surface modification by laser on Ti-Nb-Mo powder metallurgical alloys to improve their mechano-chemical behavior and their application as a biomedical implant. The used powder mixtures were produced in an inert atmosphere. Uniaxial compaction took place at 600 MPa with high-vacuum sintering at 1250 °C for 3 h. The specimens for the three-point flexure test were prepared and their mechanical properties determined. Microstructural characterization was performed by scanning electron microscopy (SEM) and X-ray diffraction (XRD) to obtain the distribution of phases, porosity, size, and shape of the grains of each alloy. Corrosion behavior was evaluated by electrochemical tests using an artificial saliva electrolyte modified from Fusayama at 37 °C. Chemical characterization was completed by analyzing the ionic release by Inductively coupled plasma atomic emission spectroscopy (ICP-EOS) after immersion for 730 h in Fusayama solution modified with NaF at 37 °C to simulate a 20-year life span based on a daily 2-min cycle of three toothbrushes. Corrosion behavior confirmed promising possibilities for the biomedicine field. The surface porosity of the samples not submitted to surface treatment deteriorated properties against corrosion and ion release. The obtained phase was β, with a low α”-martensite percentage. The maximum resistance to bending was greater after surface fusion. Plastic deformations were above 7% under some conditions. Microhardness came close to 300 HV in heat-affected zone (HAZ) and 350 HV in fusion zone (FZ) (under the determined condition. The elastic modulus lowered by around 10%. The corrosion rate was lower in Ti-27Nb-8Mo and Ti-35Nb-6Mo. Niobium release was significant, but below the physiological limit. | es_ES |
dc.description.sponsorship | The authors thank the Ministerio de Economía y Competitividad de España for Research Project RTI2018-097810-B-I00 and the Ministerio de Economía y Competitividad de España for Research Project RTI2018-096472-B-I00. The European Commission thanks to FEDER and the São Paulo State Research Support Foundation (FAPESP) [Grant: 2019/24237-6]. | es_ES |
dc.description.sponsorship | Fundação de Amparo à Pesquisa do Estado de São Paulo; 2019/24237-6 | |
dc.language.iso | eng | es_ES |
dc.publisher | MDPI | es_ES |
dc.relation | 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 | |
dc.relation | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-096472-B-I00/ES/ESTABLECIMIENTO DE UNA METODOLOGIA PARA LA OBTENCION DE MATERIALES CON GRADIENTE DE CONCENTRACION BIDIMENSIONAL MEDIANTE LA DEPOSICION DIRECTA DE MATERIALES CON LASER | |
dc.relation.uri | https://doi.org/10.3390/met11020367 | es_ES |
dc.rights | Atribución 4.0 Internacional (CC BY 4.0) | es_ES |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | * |
dc.subject | Metalurgia de los polvos | es_ES |
dc.subject | Titanio | es_ES |
dc.subject | Deposición por laser pulsado | es_ES |
dc.subject | Molibdeno | es_ES |
dc.subject | Niobio | es_ES |
dc.subject | Láser - Aplicaciones industriales | es_ES |
dc.subject | Láseres en cirugía | es_ES |
dc.subject | Powder metallurgy | |
dc.subject | Titanium | |
dc.subject | Niobium | |
dc.subject | Molybdenum | |
dc.subject | Laser surface modification | |
dc.subject | Laser melting | |
dc.title | Laser Surface Modification in Ti-xNb-yMo Alloys Prepared by Powder Metallurgy | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.access | info:eu-repo/semantics/openAccess | es_ES |
UDC.journalTitle | Metals | es_ES |
UDC.volume | 11 | es_ES |
UDC.issue | 2 | es_ES |
dc.identifier.doi | 10.3390/met11020367 |
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