Stress relaxation under tension by accompanyed current in ultrafine-grain titanium
The article studies the effect of stress relaxation caused by strain stops and pulsed current on the tensile deformation behavior of Grade 4 ultrafine-grained titanium. The samples were deformed in the following modes: without current; continuously with current; with periodic current supply, periodi...
| Main Authors: | , |
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| Format: | Article |
| Language: | Russian |
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Tver State University
2023-12-01
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| Series: | Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов |
| Subjects: | |
| Online Access: | https://physchemaspects.ru/2023/doi-10-26456-pcascnn-2023-15-135/?lang=en |
| _version_ | 1797427837998727168 |
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| author | O.E. Korolkov V.V. Stolyarov |
| author_facet | O.E. Korolkov V.V. Stolyarov |
| author_sort | O.E. Korolkov |
| collection | DOAJ |
| description | The article studies the effect of stress relaxation caused by strain stops and pulsed current on the tensile deformation behavior of Grade 4 ultrafine-grained titanium. The samples were deformed in the following modes: without current; continuously with current; with periodic current supply, periodic current supply during stops of strain. The microhardness of the working zone of the tested specimens was studied. Fracture studies of the failure zone were carried out. It is shown that, as a result of the continuous introduction of current during tension, the flow stresses decrease, and the elongation to failure increases. Periodic introduction of current, accompanied by strain stops, leads to a maximum increase in the relative elongation to failure due to stress relaxation. The relaxation effect of the pulsed current is manifested in a decrease in microhardness and the transition of the fracture type from a dimple-cup fracture to a predominantly dimple fracture. |
| first_indexed | 2024-03-09T08:49:36Z |
| format | Article |
| id | doaj.art-08fd7cd87eb94e69a3dfa66c1e24e2bd |
| institution | Directory Open Access Journal |
| issn | 2226-4442 2658-4360 |
| language | Russian |
| last_indexed | 2024-03-09T08:49:36Z |
| publishDate | 2023-12-01 |
| publisher | Tver State University |
| record_format | Article |
| series | Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов |
| spelling | doaj.art-08fd7cd87eb94e69a3dfa66c1e24e2bd2023-12-02T14:32:58ZrusTver State UniversityФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов2226-44422658-43602023-12-011513514710.26456/pcascnn/2023.15.135Stress relaxation under tension by accompanyed current in ultrafine-grain titaniumO.E. Korolkov0V.V. Stolyarov1Mechanical Engineering Research Institute of RAS, Moscow, RussiaMechanical Engineering Research Institute of RAS, Moscow, RussiaThe article studies the effect of stress relaxation caused by strain stops and pulsed current on the tensile deformation behavior of Grade 4 ultrafine-grained titanium. The samples were deformed in the following modes: without current; continuously with current; with periodic current supply, periodic current supply during stops of strain. The microhardness of the working zone of the tested specimens was studied. Fracture studies of the failure zone were carried out. It is shown that, as a result of the continuous introduction of current during tension, the flow stresses decrease, and the elongation to failure increases. Periodic introduction of current, accompanied by strain stops, leads to a maximum increase in the relative elongation to failure due to stress relaxation. The relaxation effect of the pulsed current is manifested in a decrease in microhardness and the transition of the fracture type from a dimple-cup fracture to a predominantly dimple fracture.https://physchemaspects.ru/2023/doi-10-26456-pcascnn-2023-15-135/?lang=enstress relaxationtensiontitaniumnanostructureelectroplastic effectpulsed currentmicrohardnessfractography |
| spellingShingle | O.E. Korolkov V.V. Stolyarov Stress relaxation under tension by accompanyed current in ultrafine-grain titanium Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов stress relaxation tension titanium nanostructure electroplastic effect pulsed current microhardness fractography |
| title | Stress relaxation under tension by accompanyed current in ultrafine-grain titanium |
| title_full | Stress relaxation under tension by accompanyed current in ultrafine-grain titanium |
| title_fullStr | Stress relaxation under tension by accompanyed current in ultrafine-grain titanium |
| title_full_unstemmed | Stress relaxation under tension by accompanyed current in ultrafine-grain titanium |
| title_short | Stress relaxation under tension by accompanyed current in ultrafine-grain titanium |
| title_sort | stress relaxation under tension by accompanyed current in ultrafine grain titanium |
| topic | stress relaxation tension titanium nanostructure electroplastic effect pulsed current microhardness fractography |
| url | https://physchemaspects.ru/2023/doi-10-26456-pcascnn-2023-15-135/?lang=en |
| work_keys_str_mv | AT oekorolkov stressrelaxationundertensionbyaccompanyedcurrentinultrafinegraintitanium AT vvstolyarov stressrelaxationundertensionbyaccompanyedcurrentinultrafinegraintitanium |