Pulsed laser welding of Zr1%Nb alloy
| Parent link: | Nuclear Engineering and Technology Vol. 51, iss. 3.— 2019.— [P. 776-783] |
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| Príomhchruthaitheoir: | |
| Údar corparáideach: | |
| Rannpháirtithe: | , |
| Achoimre: | Title screen Laser welding is usually a more effective method than electron-beam one since a vacuum chamber is not required. It is important for joining Zr1%Nb (E110) alloy in a manufacturing process of nuclear fuel rods. In the present work, effect of energy parameters of pulsed laser welding on properties of butt joints of sheets with a thickness of 0.5 mm is investigated. The most efficient combination has been found (8–11 J pulse energy, 10–14 ms pulse duration, 780–810 W peak pulse power, 3 Hz pulse frequency, 1.12 mm/s welding speed). The results show that ultimate strength under static loading can not be used as a quality criterion for zirconium alloys welds. Increased shielding gas flow rate does not allow to protect weld metal totally and contributes to defect formation without using special nozzles. Several types of imperfections of the welds have been found, but the major problem is branching microcracks on the surface of the welds. It is difficult to identify the cause of their appearance without additional research on improving the welding zone protection (gas composition and flow rate as well as nozzle configuration) and studying the hydrogen content in the welds. |
| Teanga: | Béarla |
| Foilsithe / Cruthaithe: |
2019
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| Ábhair: | |
| Rochtain ar líne: | https://doi.org/10.1016/j.net.2018.12.016 |
| Formáid: | Leictreonach Caibidil leabhair |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=659967 |
MARC
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| 200 | 1 | |a Pulsed laser welding of Zr1%Nb alloy |f M. A. Yolkin, A. S. Kiselev, M. S. Slobodyan | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 50 tit.] | ||
| 330 | |a Laser welding is usually a more effective method than electron-beam one since a vacuum chamber is not required. It is important for joining Zr1%Nb (E110) alloy in a manufacturing process of nuclear fuel rods. In the present work, effect of energy parameters of pulsed laser welding on properties of butt joints of sheets with a thickness of 0.5 mm is investigated. The most efficient combination has been found (8–11 J pulse energy, 10–14 ms pulse duration, 780–810 W peak pulse power, 3 Hz pulse frequency, 1.12 mm/s welding speed). The results show that ultimate strength under static loading can not be used as a quality criterion for zirconium alloys welds. Increased shielding gas flow rate does not allow to protect weld metal totally and contributes to defect formation without using special nozzles. Several types of imperfections of the welds have been found, but the major problem is branching microcracks on the surface of the welds. It is difficult to identify the cause of their appearance without additional research on improving the welding zone protection (gas composition and flow rate as well as nozzle configuration) and studying the hydrogen content in the welds. | ||
| 461 | |t Nuclear Engineering and Technology | ||
| 463 | |t Vol. 51, iss. 3 |v [P. 776-783] |d 2019 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a zirconium alloys | |
| 610 | 1 | |a pulsed laser welding | |
| 610 | 1 | |a butt welds | |
| 610 | 1 | |a mechanical properties | |
| 610 | 1 | |a microstructure | |
| 610 | 1 | |a defects | |
| 610 | 1 | |a циркониевые сплавы | |
| 610 | 1 | |a лазерная сварка | |
| 610 | 1 | |a стыковые соединения | |
| 610 | 1 | |a механические свойства | |
| 610 | 1 | |a микроструктура | |
| 610 | 1 | |a дефекты | |
| 700 | 1 | |a Yolkin |b M. A. |g Maksim Aleksandrovich | |
| 701 | 1 | |a Kiselev |b A. S. |c Specialist in the field of welding production |c Head of the department of Tomsk Polytechnic University, Candidate of technical sciences |f 1955- |g Aleksey Sergeevich |3 (RuTPU)RU\TPU\pers\34654 |9 18016 | |
| 701 | 1 | |a Slobodyan |b M. S. |c Specialist in the field of management |c Associate Professor of Tomsk Polytechnic University, Candidate of technical sciences |f 1978- |g Mikhail Stepanovich |3 (RuTPU)RU\TPU\pers\43098 | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Инженерная школа неразрушающего контроля и безопасности |b Отделение электронной инженерии |3 (RuTPU)RU\TPU\col\23507 |
| 801 | 2 | |a RU |b 63413507 |c 20190410 |g RCR | |
| 856 | 4 | |u https://doi.org/10.1016/j.net.2018.12.016 | |
| 942 | |c CF | ||