Influence of Calcium Acetate Concentration in Electrolyte on Tribocorrosion Behaviour of MAO Treated Titanium
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 t...
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MDPI AG
2021-12-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/11/12/1985 |
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| author | Luís Sousa Ana Rita Mendes Ana Maria Pires Pinto Fatih Toptan Alexandra Cruz Alves |
| author_facet | Luís Sousa Ana Rita Mendes Ana Maria Pires Pinto Fatih Toptan Alexandra Cruz Alves |
| author_sort | Luís Sousa |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-03-10T03:34:15Z |
| format | Article |
| id | doaj.art-79fc8b7cac6447acbe583f4be01189db |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T03:34:15Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-79fc8b7cac6447acbe583f4be01189db2023-11-23T09:33:52ZengMDPI AGMetals2075-47012021-12-011112198510.3390/met11121985Influence of Calcium Acetate Concentration in Electrolyte on Tribocorrosion Behaviour of MAO Treated TitaniumLuís Sousa0Ana Rita Mendes1Ana Maria Pires Pinto2Fatih Toptan3Alexandra Cruz Alves4CMEMS-UMinho—Center of MicroElectroMechanical Systems, Campus de Azurém, Universidade do Minho, 4800-058 Guimarães, PortugalCMEMS-UMinho—Center of MicroElectroMechanical Systems, Campus de Azurém, Universidade do Minho, 4800-058 Guimarães, PortugalCMEMS-UMinho—Center of MicroElectroMechanical Systems, Campus de Azurém, Universidade do Minho, 4800-058 Guimarães, PortugalCMEMS-UMinho—Center of MicroElectroMechanical Systems, Campus de Azurém, Universidade do Minho, 4800-058 Guimarães, PortugalCMEMS-UMinho—Center of MicroElectroMechanical Systems, Campus de Azurém, Universidade do Minho, 4800-058 Guimarães, PortugalTi-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.https://www.mdpi.com/2075-4701/11/12/1985titaniummicro-arc oxidationtribocorrosion |
| spellingShingle | Luís Sousa Ana Rita Mendes Ana Maria Pires Pinto Fatih Toptan Alexandra Cruz Alves Influence of Calcium Acetate Concentration in Electrolyte on Tribocorrosion Behaviour of MAO Treated Titanium Metals titanium micro-arc oxidation tribocorrosion |
| title | 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_short | 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 |
| topic | titanium micro-arc oxidation tribocorrosion |
| url | https://www.mdpi.com/2075-4701/11/12/1985 |
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