Wear Resistance of Ti–6Al–4V Alloy Ball Heads for Use in Implants
The effect of thermohydrogen treatment and vacuum ion–plasma nitriding on the determination of the volume and surface structure of ball heads made of Ti–6Al–4V alloy was studied. It was found that the submicrocrystalline structure formed in the head during thermohydrogen treatment makes it possible...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-11-01
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| Series: | Journal of Functional Biomaterials |
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| Online Access: | https://www.mdpi.com/2079-4983/12/4/65 |
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| author | Svetlana Skvortsova Aleksei Orlov Georgii Valyano Victor Spektor Natalia Mamontova |
| author_facet | Svetlana Skvortsova Aleksei Orlov Georgii Valyano Victor Spektor Natalia Mamontova |
| author_sort | Svetlana Skvortsova |
| collection | DOAJ |
| description | The effect of thermohydrogen treatment and vacuum ion–plasma nitriding on the determination of the volume and surface structure of ball heads made of Ti–6Al–4V alloy was studied. It was found that the submicrocrystalline structure formed in the head during thermohydrogen treatment makes it possible to achieve hardness values of 39–41 units HRC and a surface roughness of 0.02 μm. It was shown that the creation of a modified layer consisting of ε (TiN) and δ (Ti<sub>2</sub>N) titanium nitrides on the surface of a ball head and the solid interstitial solution of nitrogen in α-titanium makes it possible to completely eliminate material wear when testing for friction on ultra-high-molecular-weight polyethylene. The equivalent analysis was also conducted with a ball head that had been implanted in a human body for 12 years. It was found that the change in the color of the head, from slightly golden after nitriding to metallic, is due to the formation of an oxynitride nanoscale layer on the surface. It was shown that in contrast with films made of titanium oxide, the film developed in this study has high wear resistance. |
| first_indexed | 2024-03-10T03:49:58Z |
| format | Article |
| id | doaj.art-a66d5c5cd90346ee98f732697bf1a221 |
| institution | Directory Open Access Journal |
| issn | 2079-4983 |
| language | English |
| last_indexed | 2024-03-10T03:49:58Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Functional Biomaterials |
| spelling | doaj.art-a66d5c5cd90346ee98f732697bf1a2212023-11-23T08:59:56ZengMDPI AGJournal of Functional Biomaterials2079-49832021-11-011246510.3390/jfb12040065Wear Resistance of Ti–6Al–4V Alloy Ball Heads for Use in ImplantsSvetlana Skvortsova0Aleksei Orlov1Georgii Valyano2Victor Spektor3Natalia Mamontova4Moscow Aviation Institute, National Research University, 4, Volokolamskoe Highway, 125993 Moscow, RussiaMoscow Aviation Institute, National Research University, 4, Volokolamskoe Highway, 125993 Moscow, RussiaJoint Institute for High Temperatures of Russian Academy of Sciences (JIHT), 13 Bd.2, Izhorskaya Str., 125412 Moscow, RussiaMoscow Aviation Institute, National Research University, 4, Volokolamskoe Highway, 125993 Moscow, RussiaMoscow Aviation Institute, National Research University, 4, Volokolamskoe Highway, 125993 Moscow, RussiaThe effect of thermohydrogen treatment and vacuum ion–plasma nitriding on the determination of the volume and surface structure of ball heads made of Ti–6Al–4V alloy was studied. It was found that the submicrocrystalline structure formed in the head during thermohydrogen treatment makes it possible to achieve hardness values of 39–41 units HRC and a surface roughness of 0.02 μm. It was shown that the creation of a modified layer consisting of ε (TiN) and δ (Ti<sub>2</sub>N) titanium nitrides on the surface of a ball head and the solid interstitial solution of nitrogen in α-titanium makes it possible to completely eliminate material wear when testing for friction on ultra-high-molecular-weight polyethylene. The equivalent analysis was also conducted with a ball head that had been implanted in a human body for 12 years. It was found that the change in the color of the head, from slightly golden after nitriding to metallic, is due to the formation of an oxynitride nanoscale layer on the surface. It was shown that in contrast with films made of titanium oxide, the film developed in this study has high wear resistance.https://www.mdpi.com/2079-4983/12/4/65titanium alloyball headhip joint endoprosthesismodified surfacevacuum ion–plasma nitridingmicrohardness |
| spellingShingle | Svetlana Skvortsova Aleksei Orlov Georgii Valyano Victor Spektor Natalia Mamontova Wear Resistance of Ti–6Al–4V Alloy Ball Heads for Use in Implants Journal of Functional Biomaterials titanium alloy ball head hip joint endoprosthesis modified surface vacuum ion–plasma nitriding microhardness |
| title | Wear Resistance of Ti–6Al–4V Alloy Ball Heads for Use in Implants |
| title_full | Wear Resistance of Ti–6Al–4V Alloy Ball Heads for Use in Implants |
| title_fullStr | Wear Resistance of Ti–6Al–4V Alloy Ball Heads for Use in Implants |
| title_full_unstemmed | Wear Resistance of Ti–6Al–4V Alloy Ball Heads for Use in Implants |
| title_short | Wear Resistance of Ti–6Al–4V Alloy Ball Heads for Use in Implants |
| title_sort | wear resistance of ti 6al 4v alloy ball heads for use in implants |
| topic | titanium alloy ball head hip joint endoprosthesis modified surface vacuum ion–plasma nitriding microhardness |
| url | https://www.mdpi.com/2079-4983/12/4/65 |
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