Innovative plasma spray coating of HA-Ti-MgO composite on Ti6Al4V alloy for enhanced performance
Abstract In this study, an innovative hydroxyapatite–titanium–magnesium oxide composite coating was successfully fabricated on Ti6Al4V alloy using plasma spraying to enhance its mechanical and corrosion performance for biomedical applications. Granulation of nano-sized HA powder (~100 ± 20 nm) produ...
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| Format: | Article |
| Language: | English |
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Springer
2025-07-01
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| Series: | Journal of Materials Science: Materials in Medicine |
| Online Access: | https://doi.org/10.1007/s10856-025-06920-4 |
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| author | Negin Nadian Salman Nourouzi Hamed Jamshidi Aval |
| author_facet | Negin Nadian Salman Nourouzi Hamed Jamshidi Aval |
| author_sort | Negin Nadian |
| collection | DOAJ |
| description | Abstract In this study, an innovative hydroxyapatite–titanium–magnesium oxide composite coating was successfully fabricated on Ti6Al4V alloy using plasma spraying to enhance its mechanical and corrosion performance for biomedical applications. Granulation of nano-sized HA powder (~100 ± 20 nm) produced spherical agglomerates in the range of 5–20 µm, ensuring suitable flowability for uniform coating deposition. SEM analyses confirmed dense and crack-minimized layers for both pure HA (~105 µm thick) and composite (~98 µm thick) coatings. XRD revealed the formation of additional CaTiO3 and MgO phases in the composite, strengthening interfacial bonding. The composite coating exhibited a significant improvement in adhesion strength, reaching 29.2 ± 3.4 MPa, compared to 6.9 ± 0.6 MPa for pure HA. Vickers hardness also increased from 431.3 ± 5.8 HV (HA) to 537.9 ± 1.9 HV (composite coating), outperforming the uncoated Ti6Al4V substrate (360.8 ± 1.7 HV). Electrochemical tests showed that the composite coating achieved a lower corrosion current density (9.72 × 10−8 A/cm2) and higher polarization resistance (41.2 kΩ·cm2) than the HA-only coating (1.19 × 10−6 A/cm2, 28.9 kΩ·cm2), indicating enhanced corrosion resistance. |
| format | Article |
| id | doaj-art-bd046bbfca4e4f59b1d10df9dacc3405 |
| institution | DOAJ |
| issn | 1573-4838 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Springer |
| record_format | Article |
| series | Journal of Materials Science: Materials in Medicine |
| spelling | doaj-art-bd046bbfca4e4f59b1d10df9dacc34052025-08-20T03:04:16ZengSpringerJournal of Materials Science: Materials in Medicine1573-48382025-07-013611910.1007/s10856-025-06920-4Innovative plasma spray coating of HA-Ti-MgO composite on Ti6Al4V alloy for enhanced performanceNegin Nadian0Salman Nourouzi1Hamed Jamshidi Aval2Department of Materials Engineering, Babol Noshirvani University of TechnologyDepartment of Materials Engineering, Babol Noshirvani University of TechnologyDepartment of Materials Engineering, Babol Noshirvani University of TechnologyAbstract In this study, an innovative hydroxyapatite–titanium–magnesium oxide composite coating was successfully fabricated on Ti6Al4V alloy using plasma spraying to enhance its mechanical and corrosion performance for biomedical applications. Granulation of nano-sized HA powder (~100 ± 20 nm) produced spherical agglomerates in the range of 5–20 µm, ensuring suitable flowability for uniform coating deposition. SEM analyses confirmed dense and crack-minimized layers for both pure HA (~105 µm thick) and composite (~98 µm thick) coatings. XRD revealed the formation of additional CaTiO3 and MgO phases in the composite, strengthening interfacial bonding. The composite coating exhibited a significant improvement in adhesion strength, reaching 29.2 ± 3.4 MPa, compared to 6.9 ± 0.6 MPa for pure HA. Vickers hardness also increased from 431.3 ± 5.8 HV (HA) to 537.9 ± 1.9 HV (composite coating), outperforming the uncoated Ti6Al4V substrate (360.8 ± 1.7 HV). Electrochemical tests showed that the composite coating achieved a lower corrosion current density (9.72 × 10−8 A/cm2) and higher polarization resistance (41.2 kΩ·cm2) than the HA-only coating (1.19 × 10−6 A/cm2, 28.9 kΩ·cm2), indicating enhanced corrosion resistance.https://doi.org/10.1007/s10856-025-06920-4 |
| spellingShingle | Negin Nadian Salman Nourouzi Hamed Jamshidi Aval Innovative plasma spray coating of HA-Ti-MgO composite on Ti6Al4V alloy for enhanced performance Journal of Materials Science: Materials in Medicine |
| title | Innovative plasma spray coating of HA-Ti-MgO composite on Ti6Al4V alloy for enhanced performance |
| title_full | Innovative plasma spray coating of HA-Ti-MgO composite on Ti6Al4V alloy for enhanced performance |
| title_fullStr | Innovative plasma spray coating of HA-Ti-MgO composite on Ti6Al4V alloy for enhanced performance |
| title_full_unstemmed | Innovative plasma spray coating of HA-Ti-MgO composite on Ti6Al4V alloy for enhanced performance |
| title_short | Innovative plasma spray coating of HA-Ti-MgO composite on Ti6Al4V alloy for enhanced performance |
| title_sort | innovative plasma spray coating of ha ti mgo composite on ti6al4v alloy for enhanced performance |
| url | https://doi.org/10.1007/s10856-025-06920-4 |
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