About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
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Symposium
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Additive Manufacturing of Metals: Microstructure, Properties and Alloy Development
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Presentation Title |
Thermal and Microstructural Characterizations of GRCop-84/In718 Composite Structure Fabricated by DED Machine |
Author(s) |
Zexiao Wang, Nicholas O'Brien, Nicholas Jones, Jack Beuth, Sheng Shen |
On-Site Speaker (Planned) |
Zexiao Wang |
Abstract Scope |
Inconel 718 is a widely used nickel based super alloy with excellent high temperature strength and creep resistance. However, its low thermal conductivity limits its use in applications requiring heat exchange and thermal energy conversion. GRCop-84, as a copper-based alloy, has very high thermal conductivity, which may be used in composite materials to compensate for Inconel 718’s low thermal properties. In this work, Direct Energy Deposition (DED), an additive manufacturing technique, is used to create a GRCop-84/In718 composite structure under different combinations of laser power and velocity. The resulting microstructures are investigated by scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS). The thermal properties of the composite are also characterized by a frequency-domain thermoreflectance (FDTR) measurement. |