Preparation, structural, microstructural, mechanical and cytotoxic characterization of as-cast Ti-25Ta-Zr alloys
Autor(a) principal: | |
---|---|
Data de Publicação: | 2020 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s10856-019-6350-7 http://hdl.handle.net/11449/201481 |
Resumo: | Titanium alloys have been widely used as biomaterials, especially for orthopedic prostheses and dental implants, but these materials have Young's modulus almost three times greater than human cortical bones. Because of this, new alloys are being produced for the propose of decreasing Young's modulus to achieve a more balanced mechanical compatibility with the bone. In this paper, it is reported the development of Ti-25Ta alloys as a base material, in which was introduced zirconium, with concentration varying between 0 and 40 wt%, with the aim of biomedical applications. The alloys were prepared in an arc-melting furnace. The microstructural analysis was performed by x-ray diffraction as well as optical and scanning electron microscopy. Selected mechanical properties were analyzed by microhardness and Young’s modulus measurements, and cytotoxicity analysis by indirect test. X-ray measurements revealed the presence of α″ phase in the alloy without zirconium; α″ + β phases for alloys with 10, 20, and 30 wt% of zirconium, and β phase only for the alloy with 40 wt% of zirconium. These results were corroborated by the microscopy results. The hardness of the alloy was higher than that of cp-Ti due to the actions of zirconium and tantalum as hardening agents. The Young’s modulus decreases with high levels of zirconium due to the stabilization of the β phase. The cytotoxicity test showed that the extracts of studied alloys are not cytotoxic for osteoblast cells in short periods of culture. [Figure not available: see fulltext.]. |
id |
UNSP_0c580be9ab295f2e36fd54218ca35d03 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/201481 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Preparation, structural, microstructural, mechanical and cytotoxic characterization of as-cast Ti-25Ta-Zr alloysTitanium alloys have been widely used as biomaterials, especially for orthopedic prostheses and dental implants, but these materials have Young's modulus almost three times greater than human cortical bones. Because of this, new alloys are being produced for the propose of decreasing Young's modulus to achieve a more balanced mechanical compatibility with the bone. In this paper, it is reported the development of Ti-25Ta alloys as a base material, in which was introduced zirconium, with concentration varying between 0 and 40 wt%, with the aim of biomedical applications. The alloys were prepared in an arc-melting furnace. The microstructural analysis was performed by x-ray diffraction as well as optical and scanning electron microscopy. Selected mechanical properties were analyzed by microhardness and Young’s modulus measurements, and cytotoxicity analysis by indirect test. X-ray measurements revealed the presence of α″ phase in the alloy without zirconium; α″ + β phases for alloys with 10, 20, and 30 wt% of zirconium, and β phase only for the alloy with 40 wt% of zirconium. These results were corroborated by the microscopy results. The hardness of the alloy was higher than that of cp-Ti due to the actions of zirconium and tantalum as hardening agents. The Young’s modulus decreases with high levels of zirconium due to the stabilization of the β phase. The cytotoxicity test showed that the extracts of studied alloys are not cytotoxic for osteoblast cells in short periods of culture. [Figure not available: see fulltext.].Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)UNESP—Universidade Estadual Paulista Laboratório de Anelasticidade e BiomateriaisIBTN/Br—Institute of Biomaterials Tribocorrosion and Nanomedicine—Brazilian BranchIFSP—São Paulo Federal Institute of Education Science and TechnologyUNESP—Universidade Estadual Paulista Laboratório de Anelasticidade e BiomateriaisCNPq: 157.509/2015-0Universidade Estadual Paulista (Unesp)Tribocorrosion and Nanomedicine—Brazilian BranchScience and TechnologyKuroda, Pedro Akira Bazaglia [UNESP]de Freitas Quadros, Fernanda [UNESP]Sousa, Karolyne dos Santos Jorge [UNESP]Donato, Tatiani Ayako Goto [UNESP]de Araújo, Raul Oliveira [UNESP]Grandini, Carlos Roberto [UNESP]2020-12-12T02:33:38Z2020-12-12T02:33:38Z2020-02-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1007/s10856-019-6350-7Journal of Materials Science: Materials in Medicine, v. 31, n. 2, 2020.1573-48380957-4530http://hdl.handle.net/11449/20148110.1007/s10856-019-6350-72-s2.0-85078124038Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Materials Science: Materials in Medicineinfo:eu-repo/semantics/openAccess2024-04-25T17:40:00Zoai:repositorio.unesp.br:11449/201481Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:15:44.476534Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Preparation, structural, microstructural, mechanical and cytotoxic characterization of as-cast Ti-25Ta-Zr alloys |
title |
Preparation, structural, microstructural, mechanical and cytotoxic characterization of as-cast Ti-25Ta-Zr alloys |
spellingShingle |
Preparation, structural, microstructural, mechanical and cytotoxic characterization of as-cast Ti-25Ta-Zr alloys Kuroda, Pedro Akira Bazaglia [UNESP] |
title_short |
Preparation, structural, microstructural, mechanical and cytotoxic characterization of as-cast Ti-25Ta-Zr alloys |
title_full |
Preparation, structural, microstructural, mechanical and cytotoxic characterization of as-cast Ti-25Ta-Zr alloys |
title_fullStr |
Preparation, structural, microstructural, mechanical and cytotoxic characterization of as-cast Ti-25Ta-Zr alloys |
title_full_unstemmed |
Preparation, structural, microstructural, mechanical and cytotoxic characterization of as-cast Ti-25Ta-Zr alloys |
title_sort |
Preparation, structural, microstructural, mechanical and cytotoxic characterization of as-cast Ti-25Ta-Zr alloys |
author |
Kuroda, Pedro Akira Bazaglia [UNESP] |
author_facet |
Kuroda, Pedro Akira Bazaglia [UNESP] de Freitas Quadros, Fernanda [UNESP] Sousa, Karolyne dos Santos Jorge [UNESP] Donato, Tatiani Ayako Goto [UNESP] de Araújo, Raul Oliveira [UNESP] Grandini, Carlos Roberto [UNESP] |
author_role |
author |
author2 |
de Freitas Quadros, Fernanda [UNESP] Sousa, Karolyne dos Santos Jorge [UNESP] Donato, Tatiani Ayako Goto [UNESP] de Araújo, Raul Oliveira [UNESP] Grandini, Carlos Roberto [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Tribocorrosion and Nanomedicine—Brazilian Branch Science and Technology |
dc.contributor.author.fl_str_mv |
Kuroda, Pedro Akira Bazaglia [UNESP] de Freitas Quadros, Fernanda [UNESP] Sousa, Karolyne dos Santos Jorge [UNESP] Donato, Tatiani Ayako Goto [UNESP] de Araújo, Raul Oliveira [UNESP] Grandini, Carlos Roberto [UNESP] |
description |
Titanium alloys have been widely used as biomaterials, especially for orthopedic prostheses and dental implants, but these materials have Young's modulus almost three times greater than human cortical bones. Because of this, new alloys are being produced for the propose of decreasing Young's modulus to achieve a more balanced mechanical compatibility with the bone. In this paper, it is reported the development of Ti-25Ta alloys as a base material, in which was introduced zirconium, with concentration varying between 0 and 40 wt%, with the aim of biomedical applications. The alloys were prepared in an arc-melting furnace. The microstructural analysis was performed by x-ray diffraction as well as optical and scanning electron microscopy. Selected mechanical properties were analyzed by microhardness and Young’s modulus measurements, and cytotoxicity analysis by indirect test. X-ray measurements revealed the presence of α″ phase in the alloy without zirconium; α″ + β phases for alloys with 10, 20, and 30 wt% of zirconium, and β phase only for the alloy with 40 wt% of zirconium. These results were corroborated by the microscopy results. The hardness of the alloy was higher than that of cp-Ti due to the actions of zirconium and tantalum as hardening agents. The Young’s modulus decreases with high levels of zirconium due to the stabilization of the β phase. The cytotoxicity test showed that the extracts of studied alloys are not cytotoxic for osteoblast cells in short periods of culture. [Figure not available: see fulltext.]. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-12T02:33:38Z 2020-12-12T02:33:38Z 2020-02-01 |
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/10.1007/s10856-019-6350-7 Journal of Materials Science: Materials in Medicine, v. 31, n. 2, 2020. 1573-4838 0957-4530 http://hdl.handle.net/11449/201481 10.1007/s10856-019-6350-7 2-s2.0-85078124038 |
url |
http://dx.doi.org/10.1007/s10856-019-6350-7 http://hdl.handle.net/11449/201481 |
identifier_str_mv |
Journal of Materials Science: Materials in Medicine, v. 31, n. 2, 2020. 1573-4838 0957-4530 10.1007/s10856-019-6350-7 2-s2.0-85078124038 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Materials Science: Materials in Medicine |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus 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 |
|
_version_ |
1808129043392888832 |