Hydrogen-Induced Phase Transformation and Microstructure Evolution for Ti-6Al-4V Parts Produced by Electron Beam Melting; Metals; Vol. 8, iss. 5
| Parent link: | Metals Vol. 8, iss. 5.— 2018.— [301, 16 p.] |
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| Autor corporatiu: | |
| Altres autors: | , , , , , , , , |
| Sumari: | Title screen In this paper, phase transitions and microstructure evolution in titanium Ti-6Al-4V alloy parts produced by electron beam melting (EBM) under hydrogenation was investigated. Hydrogenation was carried out at the temperature of 650 °C to the absolute hydrogen concentrations in the samples of 0.29, 0.58, and 0.90 wt. %. Comparative analysis of microstructure changes in Ti-6Al-4V alloy parts was performed using scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray diffraction (XRD). Furthermore, in-situ XRD was used to investigate the phase transitions in the samples during hydrogenation. The structure of Ti-6Al-4V parts produced by EBM is represented by the ? phase plates with the transverse length of 0.2 ?m, the ? phase both in the form of plates and globular grains, and metastable ?" and ? phases. Hydrogenation to the concentration of 0.29 wt. % leads to the formation of intermetallic Ti3Al phase. The dimensions of intermetallic Ti3Al plates and their volume fraction increase significantly with hydrogen concentration up to 0.58 wt. % along with precipitation of nano-sized crystals of titanium ? hydrides. Individual Ti3Al plates decay into nanocrystals with increasing hydrogen concentration up to 0.9 wt. % accompanied by the increase of proportion and size of hydride plates. Hardness of EBM Ti-6Al-4V alloy decreases with hydrogen content. |
| Idioma: | anglès |
| Publicat: |
2018
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| Matèries: | |
| Accés en línia: | https://doi.org/10.3390/met8050301 |
| Format: | Electrònic Capítol de llibre |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=666729 |
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| 200 | 1 | |a Hydrogen-Induced Phase Transformation and Microstructure Evolution for Ti-6Al-4V Parts Produced by Electron Beam Melting |f N. S. Pushilina, A. V. Panin, M. S. Syrtanov [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 50 tit.] | ||
| 330 | |a In this paper, phase transitions and microstructure evolution in titanium Ti-6Al-4V alloy parts produced by electron beam melting (EBM) under hydrogenation was investigated. Hydrogenation was carried out at the temperature of 650 °C to the absolute hydrogen concentrations in the samples of 0.29, 0.58, and 0.90 wt. %. Comparative analysis of microstructure changes in Ti-6Al-4V alloy parts was performed using scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray diffraction (XRD). Furthermore, in-situ XRD was used to investigate the phase transitions in the samples during hydrogenation. The structure of Ti-6Al-4V parts produced by EBM is represented by the ? phase plates with the transverse length of 0.2 ?m, the ? phase both in the form of plates and globular grains, and metastable ?" and ? phases. Hydrogenation to the concentration of 0.29 wt. % leads to the formation of intermetallic Ti3Al phase. The dimensions of intermetallic Ti3Al plates and their volume fraction increase significantly with hydrogen concentration up to 0.58 wt. % along with precipitation of nano-sized crystals of titanium ? hydrides. Individual Ti3Al plates decay into nanocrystals with increasing hydrogen concentration up to 0.9 wt. % accompanied by the increase of proportion and size of hydride plates. Hardness of EBM Ti-6Al-4V alloy decreases with hydrogen content. | ||
| 461 | |t Metals | ||
| 463 | |t Vol. 8, iss. 5 |v [301, 16 p.] |d 2018 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a electron beam melting | |
| 610 | 1 | |a additive manufacturing | |
| 610 | 1 | |a titanium Ti-6Al-4V alloy | |
| 610 | 1 | |a hydrogen | |
| 610 | 1 | |a microstructure | |
| 610 | 1 | |a phase transitions | |
| 610 | 1 | |a электронно-лучевая наплавка | |
| 610 | 1 | |a добавки | |
| 610 | 1 | |a титановые сплавы | |
| 610 | 1 | |a водород | |
| 610 | 1 | |a микроструктуры | |
| 610 | 1 | |a фазовые переходы | |
| 701 | 1 | |a Pushilina |b N. S. |c physicist |c associate Professor of Tomsk Polytechnic University, candidate of physico-mathematical Sciences |f 1984- |g Natalia Sergeevna |3 (RuTPU)RU\TPU\pers\30838 |9 15085 | |
| 701 | 1 | |a Panin |b A. V. |c physicist |c Professor of Tomsk Polytechnic University, doctor of physical and mathematical Sciences |f 1971- |g Alexey Viktorovich |3 (RuTPU)RU\TPU\pers\34630 |9 17992 | |
| 701 | 1 | |a Syrtanov |b M. S. |c physicist |c Associate Professor, Researcher of Tomsk Polytechnic University, Candidate of Technical Sciences |f 1990- |g Maksim Sergeevich |3 (RuTPU)RU\TPU\pers\34764 |9 18114 | |
| 701 | 1 | |a Kashkarov |b E. B. |c Physicist |c Associate Professor, Researcher of Tomsk Polytechnic University, Candidate of Physical and Mathematical Sciences |f 1991- |g Egor Borisovich |3 (RuTPU)RU\TPU\pers\34949 |9 18267 | |
| 701 | 1 | |a Kudiyarov |b V. N. |c physicist |c Associate Professor of Tomsk Polytechnic University, Candidate of Technical Sciences |f 1990- |g Victor Nikolaevich |y Tomsk |3 (RuTPU)RU\TPU\pers\30836 |9 15083 | |
| 701 | 1 | |a Perevalova |b O. B. |g Olga Borisovna | |
| 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 | |
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| 701 | 1 | |a Koptyug |b A. V. |g Andrey Valentinovich | |
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| 856 | 4 | |u https://doi.org/10.3390/met8050301 | |
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