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Ultrasonic additive...
Ultrasonic additive manufacturing of nanocrystalline laminated composites
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- Ward, Austin A. (författare)
- Rice Univ, Mat Sci & NanoEngn, Houston, TX 77005 USA.
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- Leonard, Donovan N. (författare)
- Oak Ridge Natl Lab, Mfg Sci Div, Oak Ridge, TN 37831 USA.
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- Konig, Hans-Henrik (författare)
- KTH,Materialvetenskap
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- Lindwall, Greta (författare)
- KTH,Materialvetenskap
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- Cordero, Zachary C. (författare)
- Rice Univ, Mat Sci & NanoEngn, Houston, TX 77005 USA.;MIT, Aeronaut & Astronaut, Cambridge, MA 02139 USA.
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Rice Univ, Mat Sci & NanoEngn, Houston, TX 77005 USA Oak Ridge Natl Lab, Mfg Sci Div, Oak Ridge, TN 37831 USA. (creator_code:org_t)
- 2022-01-08
- 2022
- Engelska.
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Ingår i: Journal of Materials Research. - : Springer Nature. - 0884-2914 .- 2044-5326. ; 37:1, s. 247-258
- Relaterad länk:
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https://doi.org/10.1...
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https://link.springe...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Bearbetnings-, yt- och fogningsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Manufacturing, Surface and Joining Technology (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)
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