Effect of energy parameters of pulsed laser welding of Zr-1%Nb alloy on metal contamination with gases and properties of welds; Journal of Manufacturing Processes; Vol. 45
| Parent link: | Journal of Manufacturing Processes Vol. 45.— 2019.— [P. 472-490] |
|---|---|
| Autor principal: | |
| Autor corporatiu: | , |
| Altres autors: | , |
| Sumari: | Title screen Effect of pulsed laser welding parameters (pulse energy and duration, frequency, welding speed and, as a result, overlapping factor) on properties of E110 (Zr-1%Nb) alloy welds is presented. Butt welded joints of two identical plates with a thickness of 0.5?mm were investigated. EDS analysis of a surface layer of the welds was done, initial hydrogen concentration in the weld metal was measured and influence of absorbed gases (oxygen, nitrogen, carbon and hydrogen) on tensile strength, microhardness, hydrogen absorption rate and corrosion resistance of the welds was evaluated. The weld metal contained initial hydrogen concentration within the limits set by standards. However, mixing argon flows with atmospheric gases caused the weld metal contamination with oxygen, nitrogen and carbon. As a result, inclusions of complex chemical composition and surface branching microcracks were formed. They were stress raisers where weld failures occurred. Furthermore, it was the reason of increased hydrogen absorption rate and decreased corrosion resistance of the weld metal. The obtained results showed that absence of discoloration on surfaces of the welded joints did not guarantee metal purity and, as a consequence, required performance properties. Future research is required to determine the optimal overlapping factor; shielding gas compositions (Ar, He or their mixture) and flow rates; configuration and inclination angle of nozzles as well as distance from the nozzles to the weld zone. Режим доступа: по договору с организацией-держателем ресурса |
| Idioma: | anglès |
| Publicat: |
2019
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| Matèries: | |
| Accés en línia: | https://doi.org/10.1016/j.jmapro.2019.06.025 |
| Format: | Electrònic Capítol de llibre |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=661377 |
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| 200 | 1 | |a Effect of energy parameters of pulsed laser welding of Zr-1%Nb alloy on metal contamination with gases and properties of welds |f M. S. Slobodyan, V. N. Kudiyarov, A. M. Lider | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 140 tit.] | ||
| 330 | |a Effect of pulsed laser welding parameters (pulse energy and duration, frequency, welding speed and, as a result, overlapping factor) on properties of E110 (Zr-1%Nb) alloy welds is presented. Butt welded joints of two identical plates with a thickness of 0.5?mm were investigated. EDS analysis of a surface layer of the welds was done, initial hydrogen concentration in the weld metal was measured and influence of absorbed gases (oxygen, nitrogen, carbon and hydrogen) on tensile strength, microhardness, hydrogen absorption rate and corrosion resistance of the welds was evaluated. The weld metal contained initial hydrogen concentration within the limits set by standards. However, mixing argon flows with atmospheric gases caused the weld metal contamination with oxygen, nitrogen and carbon. As a result, inclusions of complex chemical composition and surface branching microcracks were formed. They were stress raisers where weld failures occurred. Furthermore, it was the reason of increased hydrogen absorption rate and decreased corrosion resistance of the weld metal. The obtained results showed that absence of discoloration on surfaces of the welded joints did not guarantee metal purity and, as a consequence, required performance properties. Future research is required to determine the optimal overlapping factor; shielding gas compositions (Ar, He or their mixture) and flow rates; configuration and inclination angle of nozzles as well as distance from the nozzles to the weld zone. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Journal of Manufacturing Processes | ||
| 463 | |t Vol. 45 |v [P. 472-490] |d 2019 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a zirconium alloy | |
| 610 | 1 | |a pulsed laser welding | |
| 610 | 1 | |a metal contamination | |
| 610 | 1 | |a hydrogen content | |
| 610 | 1 | |a corrosion resistance | |
| 610 | 1 | |a hydrogen absorption rate | |
| 610 | 1 | |a циркониевые сплавы | |
| 610 | 1 | |a импульсная сварка | |
| 610 | 1 | |a лазерная сварка | |
| 610 | 1 | |a загрязнения | |
| 610 | 1 | |a металлы | |
| 610 | 1 | |a водород | |
| 610 | 1 | |a устойчивость | |
| 610 | 1 | |a коррозии | |
| 610 | 1 | |a поглощение | |
| 700 | 1 | |a Slobodyan |b M. S. |c Specialist in the field of management, specialist in the field of welding production |c Associate Professor of Tomsk Polytechnic University, Candidate of technical sciences |f 1978- |g Mikhail Stepanovich |3 (RuTPU)RU\TPU\pers\43098 | |
| 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 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 | |
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