| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing: Large-Scale Metal Additive Manufacturing
|
| Presentation Title |
High Deposition Rate Wire Arc Directed Energy Deposition of 316L for Pressure Retaining Components in Nuclear Applications |
| Author(s) |
Luc Hagen, Stephen Tate, Zhenzhen Yu, Jonah Klemm-Toole |
| On-Site Speaker (Planned) |
Luc Hagen |
| Abstract Scope |
The use of wire-arc directed energy deposition (WA-DED) or wire arc additive manufacturing (WAAM) is being considered as a fabrication method for pressure components within nuclear power plants. This would allow for onsite construction of replacement parts, decreasing plant down time and preventing millions of dollars in losses. However, updates to ASME code are needed to use WA-DED to construct large 316L stainless steel pressure retaining components. In this presentation, we discuss our work using a high deposition rate pulsed spray transfer weld mode to construct demonstration builds with both 316L and 316L Si wire. A design of experiments was used to study the effects of inter-pass temperature, weld speed, and wire composition on microstructure evolution and mechanical properties. We discuss how the results obtained in these demonstration experiments help inform the selection of processing parameters for building a large (> 200 lb) pressure retaining valve body. |