Ultrasonic additive manufacturing of nanocrystalline laminated composites
Abstract Ultrasonic additive manufacturing has been used to fabricate laminated composites of commercially pure aluminum and a nanocrystalline nickel–cobalt (nc-NiCo) alloy. The nc-NiCo alloy would not weld to itself but readily welded to aluminum. Thus, by alternating between foils of...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Springer International Publishing
2022
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| Online Access: | https://hdl.handle.net/1721.1/138854 |
| _version_ | 1826193335064199168 |
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| author | Ward, Austin A. Leonard, Donovan N. König, Hans-Henrik Lindwall, Greta Cordero, Zachary C. |
| author_facet | Ward, Austin A. Leonard, Donovan N. König, Hans-Henrik Lindwall, Greta Cordero, Zachary C. |
| author_sort | Ward, Austin A. |
| collection | MIT |
| description | Abstract
Ultrasonic additive manufacturing has been used to fabricate laminated composites of commercially pure aluminum and a nanocrystalline nickel–cobalt (nc-NiCo) alloy. The nc-NiCo alloy would not weld to itself but readily welded to aluminum. Thus, by alternating between foils of nc-NiCo and Al, we achieved multi-material laminates with strong interlayer bonding. Electron microscopy showed that the nanoscale grain structure of the nc-NiCo was preserved during deposition and that the nc-NiCo/Al weld interface was decorated with comminuted surface oxides as well as Al–Ni–Co intermetallics. These findings are considered in light of process models of junction growth, interdiffusion, and grain growth, which together reveal how the different pressure- and temperature dependences of these phenomena give rise to a range of processing conditions that maximize bonding while minimizing coarsening and intermetallic formation. This analysis quantitatively demonstrates that using a soft, low melting point interlayer material decouples junction growth at the weld interface from grain growth in the nc-NiCo, expanding the range of optimal processing conditions.
Graphical abstract |
| first_indexed | 2024-09-23T09:37:24Z |
| format | Article |
| id | mit-1721.1/138854 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T09:37:24Z |
| publishDate | 2022 |
| publisher | Springer International Publishing |
| record_format | dspace |
| spelling | mit-1721.1/1388542022-01-11T03:32:37Z Ultrasonic additive manufacturing of nanocrystalline laminated composites Ward, Austin A. Leonard, Donovan N. König, Hans-Henrik Lindwall, Greta Cordero, Zachary C. Abstract Ultrasonic additive manufacturing has been used to fabricate laminated composites of commercially pure aluminum and a nanocrystalline nickel–cobalt (nc-NiCo) alloy. The nc-NiCo alloy would not weld to itself but readily welded to aluminum. Thus, by alternating between foils of nc-NiCo and Al, we achieved multi-material laminates with strong interlayer bonding. Electron microscopy showed that the nanoscale grain structure of the nc-NiCo was preserved during deposition and that the nc-NiCo/Al weld interface was decorated with comminuted surface oxides as well as Al–Ni–Co intermetallics. These findings are considered in light of process models of junction growth, interdiffusion, and grain growth, which together reveal how the different pressure- and temperature dependences of these phenomena give rise to a range of processing conditions that maximize bonding while minimizing coarsening and intermetallic formation. This analysis quantitatively demonstrates that using a soft, low melting point interlayer material decouples junction growth at the weld interface from grain growth in the nc-NiCo, expanding the range of optimal processing conditions. Graphical abstract 2022-01-10T13:49:25Z 2022-01-10T13:49:25Z 2022-01-08 2022-01-09T04:10:08Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/138854 Ward, Austin A., Leonard, Donovan N., König, Hans-Henrik, Lindwall, Greta and Cordero, Zachary C. 2022. "Ultrasonic additive manufacturing of nanocrystalline laminated composites." PUBLISHER_CC en https://doi.org/10.1557/s43578-021-00462-5 Creative Commons Attribution https://creativecommons.org/licenses/by/4.0/ The Author(s) application/pdf Springer International Publishing Springer International Publishing |
| spellingShingle | Ward, Austin A. Leonard, Donovan N. König, Hans-Henrik Lindwall, Greta Cordero, Zachary C. Ultrasonic additive manufacturing of nanocrystalline laminated composites |
| title | Ultrasonic additive manufacturing of nanocrystalline laminated composites |
| title_full | Ultrasonic additive manufacturing of nanocrystalline laminated composites |
| title_fullStr | Ultrasonic additive manufacturing of nanocrystalline laminated composites |
| title_full_unstemmed | Ultrasonic additive manufacturing of nanocrystalline laminated composites |
| title_short | Ultrasonic additive manufacturing of nanocrystalline laminated composites |
| title_sort | ultrasonic additive manufacturing of nanocrystalline laminated composites |
| url | https://hdl.handle.net/1721.1/138854 |
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