Influence of calcium acetate concentration in electrolyte on tribocorrosion behaviour of MAO treated titanium

Detalhes bibliográficos
Autor(a) principal: Sousa, Luís
Data de Publicação: 2021
Outros Autores: Mendes, Ana Rita, Pinto, A. M. P., Toptan, Fatih, Alves, Alexandra Manuela Vieira Cruz Pinto
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: https://hdl.handle.net/1822/77704
Resumo: Ti-based materials are widely used for dental and orthopaedic implant applications due to their adequate mechanical properties, corrosion behaviour and biocompatibility. However, these materials are biologically inert and display poor wear resistance. In one of the most studied processes that aims to overcome these drawbacks, Ti surfaces are often covered by anodic oxide films with the incorporation of bioactive agents such as Ca and P. Although there are several works on the tribocorrosion behaviour of MAO-treated Ti surfaces, the influence of electrolyte composition on the corrosion kinetics under sliding is yet to be fully understood. In the present work, anodic oxide films were produced on cp-Ti surfaces with different calcium acetate concentrations in the electrolyte. Tribocorrosion behaviour was investigated by reciprocating sliding tests performed in 8 g/L NaCl solution at body temperature, under potentiostatic conditions. The results showed that higher concentrations of calcium acetate had a detrimental effect on tribocorrosion kinetics, however, they resulted in less mechanical damage due to alterations in the topography and structure of the MAO layer.
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spelling Influence of calcium acetate concentration in electrolyte on tribocorrosion behaviour of MAO treated titaniumTitaniumMicro-arc oxidationTribocorrosionScience & TechnologyTi-based materials are widely used for dental and orthopaedic implant applications due to their adequate mechanical properties, corrosion behaviour and biocompatibility. However, these materials are biologically inert and display poor wear resistance. In one of the most studied processes that aims to overcome these drawbacks, Ti surfaces are often covered by anodic oxide films with the incorporation of bioactive agents such as Ca and P. Although there are several works on the tribocorrosion behaviour of MAO-treated Ti surfaces, the influence of electrolyte composition on the corrosion kinetics under sliding is yet to be fully understood. In the present work, anodic oxide films were produced on cp-Ti surfaces with different calcium acetate concentrations in the electrolyte. Tribocorrosion behaviour was investigated by reciprocating sliding tests performed in 8 g/L NaCl solution at body temperature, under potentiostatic conditions. The results showed that higher concentrations of calcium acetate had a detrimental effect on tribocorrosion kinetics, however, they resulted in less mechanical damage due to alterations in the topography and structure of the MAO layer.This work was supported by Portuguese Foundation for Science and Technology (FCT), Portugal, under UIDB/04436/2020 project. L. Sousa was grateful for the PhD grant through NORTE08-5369-FSE-000051 project.Multidisciplinary Digital Publishing Institute (MDPI)Universidade do MinhoSousa, LuísMendes, Ana RitaPinto, A. M. P.Toptan, FatihAlves, Alexandra Manuela Vieira Cruz Pinto2021-12-092021-12-09T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/1822/77704engSousa, L.; Mendes, A.R.; Pinto, A.M.P.; Toptan, F.; Alves, A.C. Influence of Calcium Acetate Concentration in Electrolyte on Tribocorrosion Behaviour of MAO Treated Titanium. Metals 2021, 11, 1985. https://doi.org/10.3390/met111219852075-470110.3390/met111219851985https://www.mdpi.com/2075-4701/11/12/1985info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:10:49Zoai:repositorium.sdum.uminho.pt:1822/77704Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:02:30.097859Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Influence of calcium acetate concentration in electrolyte on tribocorrosion behaviour of MAO treated titanium
title Influence of calcium acetate concentration in electrolyte on tribocorrosion behaviour of MAO treated titanium
spellingShingle Influence of calcium acetate concentration in electrolyte on tribocorrosion behaviour of MAO treated titanium
Sousa, Luís
Titanium
Micro-arc oxidation
Tribocorrosion
Science & Technology
title_short Influence of calcium acetate concentration in electrolyte on tribocorrosion behaviour of MAO treated titanium
title_full Influence of calcium acetate concentration in electrolyte on tribocorrosion behaviour of MAO treated titanium
title_fullStr Influence of calcium acetate concentration in electrolyte on tribocorrosion behaviour of MAO treated titanium
title_full_unstemmed Influence of calcium acetate concentration in electrolyte on tribocorrosion behaviour of MAO treated titanium
title_sort Influence of calcium acetate concentration in electrolyte on tribocorrosion behaviour of MAO treated titanium
author Sousa, Luís
author_facet Sousa, Luís
Mendes, Ana Rita
Pinto, A. M. P.
Toptan, Fatih
Alves, Alexandra Manuela Vieira Cruz Pinto
author_role author
author2 Mendes, Ana Rita
Pinto, A. M. P.
Toptan, Fatih
Alves, Alexandra Manuela Vieira Cruz Pinto
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Sousa, Luís
Mendes, Ana Rita
Pinto, A. M. P.
Toptan, Fatih
Alves, Alexandra Manuela Vieira Cruz Pinto
dc.subject.por.fl_str_mv Titanium
Micro-arc oxidation
Tribocorrosion
Science & Technology
topic Titanium
Micro-arc oxidation
Tribocorrosion
Science & Technology
description Ti-based materials are widely used for dental and orthopaedic implant applications due to their adequate mechanical properties, corrosion behaviour and biocompatibility. However, these materials are biologically inert and display poor wear resistance. In one of the most studied processes that aims to overcome these drawbacks, Ti surfaces are often covered by anodic oxide films with the incorporation of bioactive agents such as Ca and P. Although there are several works on the tribocorrosion behaviour of MAO-treated Ti surfaces, the influence of electrolyte composition on the corrosion kinetics under sliding is yet to be fully understood. In the present work, anodic oxide films were produced on cp-Ti surfaces with different calcium acetate concentrations in the electrolyte. Tribocorrosion behaviour was investigated by reciprocating sliding tests performed in 8 g/L NaCl solution at body temperature, under potentiostatic conditions. The results showed that higher concentrations of calcium acetate had a detrimental effect on tribocorrosion kinetics, however, they resulted in less mechanical damage due to alterations in the topography and structure of the MAO layer.
publishDate 2021
dc.date.none.fl_str_mv 2021-12-09
2021-12-09T00:00:00Z
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 https://hdl.handle.net/1822/77704
url https://hdl.handle.net/1822/77704
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Sousa, L.; Mendes, A.R.; Pinto, A.M.P.; Toptan, F.; Alves, A.C. Influence of Calcium Acetate Concentration in Electrolyte on Tribocorrosion Behaviour of MAO Treated Titanium. Metals 2021, 11, 1985. https://doi.org/10.3390/met11121985
2075-4701
10.3390/met11121985
1985
https://www.mdpi.com/2075-4701/11/12/1985
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute (MDPI)
publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute (MDPI)
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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