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Study of Pulsed Las...
Study of Pulsed Laser Beam Welding of Nickel-Based Superalloy G27
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- Ariaseta, Achmad (författare)
- Högskolan Väst,Avdelningen för svetsteknologi (SV),Department of Metallurgical Engineering, Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung 40132 (IDN),KAMPT
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- Pick, Dario (författare)
- Högskolan Väst,Avdelningen för svetsteknologi (SV),KAMPT
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- Andersson, Joel, 1981- (författare)
- Högskolan Väst,Avdelningen för maskinteknik,KAMPT
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- Ojo, Olanrewaju (författare)
- Department of Mechanical Engineering, University of Manitoba, Winnipeg, MB R3T 5V6 (CAN)
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(creator_code:org_t)
- IOS Press, 2024
- 2024
- Engelska.
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Ingår i: Sustainable Production through Advanced Manufacturing, Intelligent Automation and Work Integrated Learning. - : IOS Press. - 9781643685106 - 9781643685113 ; , s. 39-49
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https://doi.org/10.3...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- The influence of pulsed laser beam welding (LBW) parameters on the weld geometry and imperfections of a new nickel-based superalloy called G27 was studied by a statistical design of experiment, and the microstructures of the weld fusion zone (FZ) of the pulsed laser beam-welded G27 were characterized. No evidence of cracks is found in the FZ and heat-affected zone (HAZ). Other weld imperfections, such as undercut and underfill, were also hardly observed.The pulse factor significantly influenced all the responses, i.e., minimum weld width (Wm), root excess weld metal, and average pore diameter, whereas welding travel speed significantly influenced Wm and root excess weld metal. Power and interaction between pulse frequency*pulse factor were statistically significant in influencing the root excess weld metal and average pore diameter, respectively. The pulse frequency and interactions between power*travel speed, power*pulse factor, power*pulse frequency, travel speed*pulse factor, and travel speed*pulse frequency did not significantly influence any response.Microsegregation pattern that occurs during weld solidification leads to the formation of Nb-rich MC carbides and Nb-rich Laves phase as the major secondary phase constituents in the FZ of as-welded G27. The presence of brittle Laves phase requires careful consideration when developing suitable post-weld heat treatment of G27.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Bearbetnings-, yt- och fogningsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Manufacturing, Surface and Joining Technology (hsv//eng)
Nyckelord
- G27 superalloy
- pulsed laser beam welding
- weld geometry
- microstructure
- Production Technology
- Produktionsteknik
Publikations- och innehållstyp
- ref (ämneskategori)
- kap (ämneskategori)
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