Monitoring the Changes in Titanium Defect Structure during Titanium Hydrogen Saturation; Russian Journal of Nondestructive Testing; Vol. 55, iss. 12
| Parent link: | Russian Journal of Nondestructive Testing Vol. 55, iss. 12.— 2019.— [P. 928-934] |
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| Korporativna značnica: | |
| Drugi avtorji: | , , , |
| Izvleček: | Title screen Hydrogen saturated samples of technically pure titanium have been studied by the electron-positron annihilation method (EPA), coupled with the thermoelectric power measurements performed in these samples saturated by different amount of hydrogen. The structure of the hydrogenated samples was additionally investigated by X-ray diffraction. The complete coincidence of the moment of occurrence of a change in the structure of hydrogenated titanium depending on the amount of introduced hydrogen has been established. The intensity of positron annihilation drops with increasing hydrogen concentration in α-titanium to 0.04 wt % and then remains unchanged up to values of 0.05 wt % (α+δα+δ) -titanium to increases afterwards. At the same time, a sharp change in the values of the thermoelectric power occurs in this range. In the region of 0.05%, the annihilation rate stabilizes and begins to increase, while the thermoelectric power begins to decrease slowly. The inflection point on the dependence of thermoelectric power on hydrogen concentration corresponds to the onset of the formation of titanium δδ-hydrides. An increase in the positron lifetime is observed in the concentration range of 0.05-0.08 wt %, then the lifetime stays stable up to concentrations of 0.08-0.12 wt %. A transition from (α+βα+β) to (α+δα+δ) phase is formed in this range. Next, the positron lifetime increases, as does the number of defects, while the thermoelectric power gradually drops (to a concentration of 0.24 wt %). This is followed by a stabilization mode of all the above parameters to 0.35 wt %. Режим доступа: по договору с организацией-держателем ресурса |
| Jezik: | angleščina |
| Izdano: |
2019
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| Teme: | |
| Online dostop: | https://doi.org/10.1134/S1061830919120052 |
| Format: | Elektronski Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=661948 |
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| 200 | 1 | |a Monitoring the Changes in Titanium Defect Structure during Titanium Hydrogen Saturation |f A. M. Lider, V. V. Larionov, Xu Shupeng, R. S. Laptev | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 28 tit.] | ||
| 330 | |a Hydrogen saturated samples of technically pure titanium have been studied by the electron-positron annihilation method (EPA), coupled with the thermoelectric power measurements performed in these samples saturated by different amount of hydrogen. The structure of the hydrogenated samples was additionally investigated by X-ray diffraction. The complete coincidence of the moment of occurrence of a change in the structure of hydrogenated titanium depending on the amount of introduced hydrogen has been established. The intensity of positron annihilation drops with increasing hydrogen concentration in α-titanium to 0.04 wt % and then remains unchanged up to values of 0.05 wt % (α+δα+δ) -titanium to increases afterwards. At the same time, a sharp change in the values of the thermoelectric power occurs in this range. In the region of 0.05%, the annihilation rate stabilizes and begins to increase, while the thermoelectric power begins to decrease slowly. The inflection point on the dependence of thermoelectric power on hydrogen concentration corresponds to the onset of the formation of titanium δδ-hydrides. An increase in the positron lifetime is observed in the concentration range of 0.05-0.08 wt %, then the lifetime stays stable up to concentrations of 0.08-0.12 wt %. A transition from (α+βα+β) to (α+δα+δ) phase is formed in this range. Next, the positron lifetime increases, as does the number of defects, while the thermoelectric power gradually drops (to a concentration of 0.24 wt %). This is followed by a stabilization mode of all the above parameters to 0.35 wt %. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Russian Journal of Nondestructive Testing | ||
| 463 | |t Vol. 55, iss. 12 |v [P. 928-934] |d 2019 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a defects in titanium | |
| 610 | 1 | |a hydrogen | |
| 610 | 1 | |a electron-positron annihilation | |
| 610 | 1 | |a thermoelectric power | |
| 610 | 1 | |a дефекты | |
| 610 | 1 | |a титан-водород | |
| 610 | 1 | |a электрон-позитронная аннигиляция | |
| 610 | 1 | |a термоэлектрические методы | |
| 701 | 1 | |a Lider |b A. M. |c Physicist |c Professor of Tomsk Polytechnic University, Doctor of Technical Sciences |f 1976-2025 |g Andrey Markovich |y Tomsk |3 (RuTPU)RU\TPU\pers\30400 |9 14743 | |
| 701 | 1 | |a Larionov |b V. V. |c physicist |c Professor of Tomsk Polytechnic University, Doctor of Pedagogical Sciences |f 1945- |g Vitaliy Vasilyevich |3 (RuTPU)RU\TPU\pers\30307 |9 14653 | |
| 701 | 0 | |a Xu Shupeng |c physicist |c engineer of Tomsk Polytechnic University |f 1993- |3 (RuTPU)RU\TPU\pers\46319 | |
| 701 | 1 | |a Laptev |b R. S. |c physicist, specialist in the field of non-destructive testing |c Associate Professor of Tomsk Polytechnic University, Doctor of Technical Sciences |f 1987- |g Roman Sergeevich |y Tomsk |3 (RuTPU)RU\TPU\pers\31884 |9 15956 | |
| 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/S1061830919120052 | |
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