Hydrogen influence on defect structure and mechanical properties of EBM Ti-6Al-4V; Materials Today: Proceedings; Vol. 19, Pt. 5 : International Conference on Modern Trends in Manufacturing Technologies and Equipment 2019
| Parent link: | Materials Today: Proceedings Vol. 19, Pt. 5 : International Conference on Modern Trends in Manufacturing Technologies and Equipment 2019.— 2019.— [P. 2084-2088] |
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| Autor Principal: | |
| Autor Corporativo: | |
| Outros autores: | , |
| Summary: | Title screen The defect structure and mechanical properties of the samples manufactured from Ti-6Al-4V powder by electron beam melting (EBM) before and after hydrogenation was studied. It has been established that hydrogenation of EBM titanium alloy to a concentration of 470?ppm leads to the formation of titanium ?-hydride, the volume content of which is 2.2%. A further increase in the concentration of hydrogen to 650?ppm is accompanied by a slight increase in the content of the hydride phase, while the proportion of the ? phase of titanium increases (to 4.9%). When the hydrogen content is 900?ppm, the fraction of ? hydride decreases and the fraction of the beta phase decreases to 4.2%, and the formation of the hydride phase ? is observed. The introduction of hydrogen leads to a decrease in the wear and an increase in the hardness of EBM Ti-6Al-4V samples. This circumstance is due to the microstructure refinement under the action of hydrogen and the formation of secondary phase precipitates. The hydrogen content increases, the dislocation density and the concentration of hydrogen-vacancy complexes linearly increase, which indicates that hydrogen not only actively interacts with existing defects but also induces the formation of new defects. Режим доступа: по договору с организацией-держателем ресурса |
| Idioma: | inglés |
| Publicado: |
2019
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| Subjects: | |
| Acceso en liña: | https://doi.org/10.1016/j.matpr.2019.07.101 |
| Formato: | Electrónico Capítulo de libro |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=661963 |
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| 200 | 1 | |a Hydrogen influence on defect structure and mechanical properties of EBM Ti-6Al-4V |f R. S. Laptev, V. N. Kudiyarov, N. S. Pushilina | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 23 tit.] | ||
| 330 | |a The defect structure and mechanical properties of the samples manufactured from Ti-6Al-4V powder by electron beam melting (EBM) before and after hydrogenation was studied. It has been established that hydrogenation of EBM titanium alloy to a concentration of 470?ppm leads to the formation of titanium ?-hydride, the volume content of which is 2.2%. A further increase in the concentration of hydrogen to 650?ppm is accompanied by a slight increase in the content of the hydride phase, while the proportion of the ? phase of titanium increases (to 4.9%). When the hydrogen content is 900?ppm, the fraction of ? hydride decreases and the fraction of the beta phase decreases to 4.2%, and the formation of the hydride phase ? is observed. The introduction of hydrogen leads to a decrease in the wear and an increase in the hardness of EBM Ti-6Al-4V samples. This circumstance is due to the microstructure refinement under the action of hydrogen and the formation of secondary phase precipitates. The hydrogen content increases, the dislocation density and the concentration of hydrogen-vacancy complexes linearly increase, which indicates that hydrogen not only actively interacts with existing defects but also induces the formation of new defects. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Materials Today: Proceedings | ||
| 463 | |t Vol. 19, Pt. 5 : International Conference on Modern Trends in Manufacturing Technologies and Equipment 2019 |v [P. 2084-2088] |d 2019 | ||
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| 610 | 1 | |a electron beam melting | |
| 610 | 1 | |a defects | |
| 610 | 1 | |a titanium alloy | |
| 610 | 1 | |a hydrogen | |
| 610 | 1 | |a positron | |
| 610 | 1 | |a электронно-лучевая плавка | |
| 610 | 1 | |a дефекты | |
| 610 | 1 | |a титановые сплавы | |
| 610 | 1 | |a водород | |
| 610 | 1 | |a позитроны | |
| 700 | 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 | |
| 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 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 | |
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