About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Symposium
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2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Presentation Title |
Hot Isostatic Pressing to Increase Isotropic Behavior of Wire DED Ti6Al4V |
Author(s) |
LaRico Treadwell, Jonathan Pegues, Shaun Whetten, Tyler Chilson |
On-Site Speaker (Planned) |
Jonathan Pegues |
Abstract Scope |
Hot Isostatic Pressing (HIP) can be a useful tool to increase the density of metal Additively Manufactured (AM) parts. This post-process route can have significant impacts on the microstructure and material properties such as strength, ductility, and fatigue resistance. Many metal AM materials, especially those fabricated using wire based directed energy deposition (W-DED) process, have a high degree of anisotropic behavior resulting from the columnar prior microstructure. Titanium based alloys can be highly sensitive to these massive grains as the prior boundaries are primary nucleation sites for grains promoting the formation of continuous across the length of the boundaries. This talk discusses preliminary efforts to utilize HIP as a means to reduce variability in mechanical properties and its effects on the anisotropic behavior of W-DED Ti-6Al-4V products.
SNL is managed and operated by NTESS under DOE NNSA contract DE-NA0003525 |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |