Laser Surface Modification in Ti-xNb-yMo Alloys Prepared by Powder Metallurgy
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.3390/met11020367 http://hdl.handle.net/11449/210076 |
Resumo: | 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 degrees 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 degrees 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 degrees 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 beta, with a low alpha-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. |
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Laser Surface Modification in Ti-xNb-yMo Alloys Prepared by Powder Metallurgypowder metallurgytitaniumniobiummolybdenumlaser surface modificationlaser meltingThe 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 degrees 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 degrees 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 degrees 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 beta, with a low alpha-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.Ministerio de Economia y Competitividad de EspanaFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)FEDERUniv Politecn Valencia, Inst Tecnol Mat, Valencia 46022, SpainSao Paulo State Univ, Sch Vet Med & Anim Sci, Dept Vet Surg & Anim Reprod, Regenerat Med Lab, BR-18618681 Botucatu, SP, BrazilUniv A Coruna, Dept Ingn Ind 2, Ferrol 15471, SpainSao Paulo State Univ, Sch Vet Med & Anim Sci, Dept Vet Surg & Anim Reprod, Regenerat Med Lab, BR-18618681 Botucatu, SP, BrazilMinisterio de Economia y Competitividad de Espana: RTI2018-097810-B-I00Ministerio de Economia y Competitividad de Espana: RTI2018-096472-B-I00FAPESP: 2019/24237-6MdpiUniv Politecn ValenciaUniversidade Estadual Paulista (Unesp)Univ A CorunaTendero, InmaculadaRossi, Mariana Correa [UNESP]Viera, MauricioAmado, Jose ManuelTobar, Maria JoseVicente, AngelYanez, ArmandoAmigo, Vicente2021-06-25T12:38:59Z2021-06-25T12:38:59Z2021-02-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article20http://dx.doi.org/10.3390/met11020367Metals. Basel: Mdpi, v. 11, n. 2, 20 p., 2021.http://hdl.handle.net/11449/21007610.3390/met11020367WOS:000622779000001Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMetalsinfo:eu-repo/semantics/openAccess2024-09-09T14:01:30Zoai:repositorio.unesp.br:11449/210076Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462024-09-09T14:01:30Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Laser Surface Modification in Ti-xNb-yMo Alloys Prepared by Powder Metallurgy |
title |
Laser Surface Modification in Ti-xNb-yMo Alloys Prepared by Powder Metallurgy |
spellingShingle |
Laser Surface Modification in Ti-xNb-yMo Alloys Prepared by Powder Metallurgy Tendero, Inmaculada powder metallurgy titanium niobium molybdenum laser surface modification laser melting |
title_short |
Laser Surface Modification in Ti-xNb-yMo Alloys Prepared by Powder Metallurgy |
title_full |
Laser Surface Modification in Ti-xNb-yMo Alloys Prepared by Powder Metallurgy |
title_fullStr |
Laser Surface Modification in Ti-xNb-yMo Alloys Prepared by Powder Metallurgy |
title_full_unstemmed |
Laser Surface Modification in Ti-xNb-yMo Alloys Prepared by Powder Metallurgy |
title_sort |
Laser Surface Modification in Ti-xNb-yMo Alloys Prepared by Powder Metallurgy |
author |
Tendero, Inmaculada |
author_facet |
Tendero, Inmaculada Rossi, Mariana Correa [UNESP] Viera, Mauricio Amado, Jose Manuel Tobar, Maria Jose Vicente, Angel Yanez, Armando Amigo, Vicente |
author_role |
author |
author2 |
Rossi, Mariana Correa [UNESP] Viera, Mauricio Amado, Jose Manuel Tobar, Maria Jose Vicente, Angel Yanez, Armando Amigo, Vicente |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Univ Politecn Valencia Universidade Estadual Paulista (Unesp) Univ A Coruna |
dc.contributor.author.fl_str_mv |
Tendero, Inmaculada Rossi, Mariana Correa [UNESP] Viera, Mauricio Amado, Jose Manuel Tobar, Maria Jose Vicente, Angel Yanez, Armando Amigo, Vicente |
dc.subject.por.fl_str_mv |
powder metallurgy titanium niobium molybdenum laser surface modification laser melting |
topic |
powder metallurgy titanium niobium molybdenum laser surface modification laser melting |
description |
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 degrees 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 degrees 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 degrees 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 beta, with a low alpha-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. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-25T12:38:59Z 2021-06-25T12:38:59Z 2021-02-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.3390/met11020367 Metals. Basel: Mdpi, v. 11, n. 2, 20 p., 2021. http://hdl.handle.net/11449/210076 10.3390/met11020367 WOS:000622779000001 |
url |
http://dx.doi.org/10.3390/met11020367 http://hdl.handle.net/11449/210076 |
identifier_str_mv |
Metals. Basel: Mdpi, v. 11, n. 2, 20 p., 2021. 10.3390/met11020367 WOS:000622779000001 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Metals |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
20 |
dc.publisher.none.fl_str_mv |
Mdpi |
publisher.none.fl_str_mv |
Mdpi |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
repositoriounesp@unesp.br |
_version_ |
1810021328096329728 |