Abstract
In this paper, 316L stainless steel walls were printed using single-bead pass and multiple-bead pass wire arc additive manufacturing (WAAM), which represent the internal basket wall and external wall of a spent nuclear fuel (SNF) canister, respectively. Scanning electron microscopy (SEM) microstructure characterization and tensile tests at room temperature (21 °C) and elevated temperature (250 °C, the maximum temperature at the center of a SNF canister.) were performed on specimens extracted along the length and height directions of the printed walls. Results showed that grain morphology, grain angles, and retained ferrite are different between the two printed walls, which received different heat input in WAAM. The single-bead pass printed wall exhibited higher yield strength than the multiple-bead pass printed wall because of more retained ferrite and larger portion of random-high angle boundaries (RHAB) grains.
Original language | English |
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Title of host publication | Operations, Applications and Components |
Publisher | American Society of Mechanical Engineers (ASME) |
ISBN (Electronic) | 9780791887493 |
DOIs | |
State | Published - 2023 |
Event | ASME 2023 Pressure Vessels and Piping Conference, PVP 2023 - Atlanta, United States Duration: Jul 16 2023 → Jul 21 2023 |
Publication series
Name | American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP |
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Volume | 6 |
ISSN (Print) | 0277-027X |
Conference
Conference | ASME 2023 Pressure Vessels and Piping Conference, PVP 2023 |
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Country/Territory | United States |
City | Atlanta |
Period | 07/16/23 → 07/21/23 |
Funding
The work performed in this paper was funded by the US Department of Energy (DOE) Office of Nuclear Energy (NE) Office of Spent Fuel and Waste Disposition (SFWD) Integrated Waste Management (IWM), within work package SF-21OR02020109, “Standardization and Integration.” The authors gratefully acknowledge Oak Ridge National Laboratory (ORNL) Manufacturing Demonstration Facility (MDF) and Low Activation Materials Development and Analysis Laboratory (LAMDA) for WAAM and microstructure characterization. We would like to thank Dixon Travis and Sarah Graham for specimens cutting, preparation, and machining coordination. The authors acknowledge Jorge Narvaez at the DOE’s Office of Spent Fuel and Waste Disposition, Xiang Chen and Abiodun Adeniyi at ORNL for technical reviewing this paper.
Keywords
- 316L stainless steel
- Wire arc additive manufacturing
- mechanical responses
- thermal history