Hydrogen Effect on the Evolution of the Structural-Phase State and Superplastic Properties of Ultrafine-Grained Ti-Al-V-Mo Alloy; Physical Mesomechanics; Vol. 25, iss. 5
| Parent link: | Physical Mesomechanics Vol. 25, iss. 5.— 2022.— [P. 413-423] |
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| Autor corporatiu: | |
| Altres autors: | , , , |
| Sumari: | Title screen The formation of ultrafine-grained structures is a well-known method of decreasing the temperature and/or increasing the strain rate to provide superplasticity in titanium alloys. Under certain conditions, dissolved hydrogen can produce a plasticizing effect on titanium alloys, showing up as a decrease in their stress and/or an increase in their ultimate strain. Here we study the effect of 0.3 wt % of dissolved hydrogen on the structure, phase state, and superplastic properties of an ultrafine-grained (α + β) Ti-Al-V-Mo system (VT16 alloy) at a temperature of 823-923 K. The ultrafine-grained structure of Ti-Al-V-Mo (VT16 alloy) and Ti-Al-V-Mo-0.3 wt % H (VT16-H alloy) results from severe plastic deformation via uniaxial compression with a change in the strain axis and in the temperature from 1023 to 823 K. In the temperature range used, the presence of hydrogen in the solid solution of VT16 alloy decreases its superplastic properties. During deformation, hydrogen is redistributed in the bulk of the material by elastic stress fields and is accumulated in the most stressed regions, leading to plastic strain localization and to a decrease in the strain to fracture. The release of hydrogen from VT16-H alloy during deformation activates its β → α transformation and associated diffusion redistribution of its alloying elements, contributing to the accommodation of grain boundary sliding and to the increase in the strain to fracture. Режим доступа: по договору с организацией-держателем ресурса |
| Idioma: | anglès |
| Publicat: |
2022
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| Matèries: | |
| Accés en línia: | https://doi.org/10.1134/S1029959922050046 |
| Format: | Electrònic Capítol de llibre |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=668770 |
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| 200 | 1 | |a Hydrogen Effect on the Evolution of the Structural-Phase State and Superplastic Properties of Ultrafine-Grained Ti-Al-V-Mo Alloy |d Влияние водорода на эволюцию структурно-фазового состояния и сверхпластические свойства ультрамелкозернистого сплава системы Ti-Al-V-Мо |f G. P. Grabovskaya, I. P. Mishin, E. N. Stepanova, O. V. Zabudchenko | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 39 tit.] | ||
| 330 | |a The formation of ultrafine-grained structures is a well-known method of decreasing the temperature and/or increasing the strain rate to provide superplasticity in titanium alloys. Under certain conditions, dissolved hydrogen can produce a plasticizing effect on titanium alloys, showing up as a decrease in their stress and/or an increase in their ultimate strain. Here we study the effect of 0.3 wt % of dissolved hydrogen on the structure, phase state, and superplastic properties of an ultrafine-grained (α + β) Ti-Al-V-Mo system (VT16 alloy) at a temperature of 823-923 K. The ultrafine-grained structure of Ti-Al-V-Mo (VT16 alloy) and Ti-Al-V-Mo-0.3 wt % H (VT16-H alloy) results from severe plastic deformation via uniaxial compression with a change in the strain axis and in the temperature from 1023 to 823 K. In the temperature range used, the presence of hydrogen in the solid solution of VT16 alloy decreases its superplastic properties. During deformation, hydrogen is redistributed in the bulk of the material by elastic stress fields and is accumulated in the most stressed regions, leading to plastic strain localization and to a decrease in the strain to fracture. The release of hydrogen from VT16-H alloy during deformation activates its β → α transformation and associated diffusion redistribution of its alloying elements, contributing to the accommodation of grain boundary sliding and to the increase in the strain to fracture. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Physical Mesomechanics | ||
| 463 | |t Vol. 25, iss. 5 |v [P. 413-423] |d 2022 | ||
| 510 | 1 | |a Влияние водорода на эволюцию структурно-фазового состояния и сверхпластические свойства ультрамелкозернистого сплава системы Ti-Al-V-Мо |z rus | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a titanium alloy | |
| 610 | 1 | |a hydrogen | |
| 610 | 1 | |a ultrafine-grained structure | |
| 610 | 1 | |a deformation | |
| 610 | 1 | |a plastic strain localization | |
| 610 | 1 | |a phase transformation | |
| 610 | 1 | |a титановые сплавы | |
| 610 | 1 | |a водород | |
| 610 | 1 | |a ультрамелкозернистая структура | |
| 610 | 1 | |a деформации | |
| 610 | 1 | |a локализованная пластическая деформация | |
| 610 | 1 | |a фазовое превращение | |
| 701 | 1 | |a Grabovskaya |b G. P. |g Galina Petrovna | |
| 701 | 1 | |a Mishin |b I. P. |g Ivan Petrovich | |
| 701 | 1 | |a Stepanova |b E. N. |c physicist |c Associate Professor of Tomsk Polytechnic University, Candidate of technical sciences |f 1981- |g Ekaterina Nikolaevna |3 (RuTPU)RU\TPU\pers\35054 |9 18329 | |
| 701 | 1 | |a Zabudchenko |b O. V. |g Olga Vyacheslavovna | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Инженерная школа ядерных технологий |b Отделение экспериментальной физики |3 (RuTPU)RU\TPU\col\23549 |
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| 856 | 4 | |u https://doi.org/10.1134/S1029959922050046 | |
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