Size effects of friction in pure titanium
The article is devoted to an experimental study of the tribological behavior without lubrication of commercial pure titanium under specific conditions close to fretting, which differs from traditional tests by the small amplitude and frequency of indenter movement. Tribological characteristics: wea...
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| Format: | Article |
| Language: | Russian |
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Tver State University
2024-12-01
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| Series: | Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов |
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| Online Access: | https://physchemaspects.ru/2024/doi-10-26456-pcascnn-2024-16-729/?lang=en |
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| _version_ | 1850058889044688896 |
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| author | V.V. Stolyarov |
| author_facet | V.V. Stolyarov |
| author_sort | V.V. Stolyarov |
| collection | DOAJ |
| description | The article is devoted to an experimental study of the tribological behavior without lubrication of commercial pure titanium under specific conditions close to fretting, which differs from traditional tests by the small amplitude and frequency of indenter movement. Tribological characteristics: wear and the friction coefficient at room and elevated temperatures of Grade 4 titanium are compared in the ultrafine-grained (grain size dg = 0,45 μm) and coarse-grained state (dg = 45 μm). It has been shown that at room temperature, reducing the grain size by two orders of magnitude increases wear and the friction coefficient. Reducing the displacement amplitude from 300 to 50 μm brings the friction conditions closer to fretting and reduces both wear and friction coefficient. An increase in temperature from room temperature to 350°C transforms the traditional type of wear into the formation of an oxide film and reduces the friction coefficient. The boundary conditions for the occurrence of fretting and their applicability to nanostructures are discussed. |
| format | Article |
| id | doaj-art-7fa9510e03df4dc5ba9065d95db18356 |
| institution | DOAJ |
| issn | 2226-4442 2658-4360 |
| language | Russian |
| publishDate | 2024-12-01 |
| publisher | Tver State University |
| record_format | Article |
| series | Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов |
| spelling | doaj-art-7fa9510e03df4dc5ba9065d95db183562025-08-20T02:51:02ZrusTver State UniversityФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов2226-44422658-43602024-12-011672973710.26456/pcascnn/2024.16.729Size effects of friction in pure titaniumV.V. Stolyarov0Mechanical Engineering Research Institute of the RAS The article is devoted to an experimental study of the tribological behavior without lubrication of commercial pure titanium under specific conditions close to fretting, which differs from traditional tests by the small amplitude and frequency of indenter movement. Tribological characteristics: wear and the friction coefficient at room and elevated temperatures of Grade 4 titanium are compared in the ultrafine-grained (grain size dg = 0,45 μm) and coarse-grained state (dg = 45 μm). It has been shown that at room temperature, reducing the grain size by two orders of magnitude increases wear and the friction coefficient. Reducing the displacement amplitude from 300 to 50 μm brings the friction conditions closer to fretting and reduces both wear and friction coefficient. An increase in temperature from room temperature to 350°C transforms the traditional type of wear into the formation of an oxide film and reduces the friction coefficient. The boundary conditions for the occurrence of fretting and their applicability to nanostructures are discussed. https://physchemaspects.ru/2024/doi-10-26456-pcascnn-2024-16-729/?lang=entitaniumultrafine-grained structurewearfrictionfretting |
| spellingShingle | V.V. Stolyarov Size effects of friction in pure titanium Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов titanium ultrafine-grained structure wear friction fretting |
| title | Size effects of friction in pure titanium |
| title_full | Size effects of friction in pure titanium |
| title_fullStr | Size effects of friction in pure titanium |
| title_full_unstemmed | Size effects of friction in pure titanium |
| title_short | Size effects of friction in pure titanium |
| title_sort | size effects of friction in pure titanium |
| topic | titanium ultrafine-grained structure wear friction fretting |
| url | https://physchemaspects.ru/2024/doi-10-26456-pcascnn-2024-16-729/?lang=en |
| work_keys_str_mv | AT vvstolyarov sizeeffectsoffrictioninpuretitanium |