| DOI | Resolve DOI: https://doi.org/10.1115/GT2015-42055 |
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| Author | Search for: Zhang, Y.N.1; Search for: Cao, X.1; Search for: Wanjara, P.1 |
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| Affiliation | - National Research Council of Canada. Aerospace
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| Format | Text, Article |
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| Conference | ASME Turbo Expo 2015: Turbine Technical Conference and Exposition, June 15-19, 2015, Montreal Canada |
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| Subject | nickel; superalloys; wire; fillers (Materials); fiber lasers |
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| Abstract | In this work, a continuous wave fiber laser welding system was used to deposit nickel-based superalloys Inconel 718 (IN 718) and Waspaloy using filler wire feed sources. The multi-bead and multi-layer deposits that were manufactured were characterized in terms of the macro- and microstructures, defects, and hardness in both the as-deposited and fully heat treated conditions. The tensile properties of the deposits in the heat treated condition were also determined and compared to the existing aerospace materials specifications. Using optimized laser processing parameters, high strength deposits could be manufactured, though minor weld metal liquation cracking for IN718 and strain-age cracking for Waspaloy were present, which compromised slightly the ductility as compared to wrought aerospace specifications for the two alloys. The successful development of the direct laser deposition process using wire feeding indicates the potential of employing the fiber laser technology to manufacture nickel-based superalloy aerospace components. |
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| Publication date | 2015 |
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| Publisher | American Society of Mechanical Engineers |
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| In | |
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| Series | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 21276100 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 9cdaa542-c473-46d8-8114-448c55a44b86 |
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| Record created | 2015-09-23 |
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| Record modified | 2020-04-22 |
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