| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing:
Incorporating Breakthrough Functionalities for Building Large Scale Components
|
| Presentation Title |
Integrated Deposition and Thermal Processing: a Pathway for Controlled As-Printed Performance |
| Author(s) |
Daniel Codd, Joseph McCrink, Stephen Taller |
| On-Site Speaker (Planned) |
Daniel Codd |
| Abstract Scope |
AM parts often experience microstructural and property gradation due to non-uniform cooling rates across the build volume. Ferritic/martensitic (F/M) steels, favored in power generation applications for their high temperature strength, are particularly susceptible and often require off line post-processing heat treatments to achieve desired microstructure and performance. A novel integrated wire-arc AM (WAAM) direct energy deposition and thermal control system is applied to Grade 91 F/M steel linear wall prints as a proof of concept. Microhardness, small scale SSJ3 room and elevated temperature tensile, subsize Charpy impact, and dual-ion irradiation tests show the in-situ AM thermal processing can improve part homogeneity and reduce the need for conventional post-build heat treatments. Integrated thermal processing could enable the production of complex components with desired properties at a reduced cost and time, and also enhance design flexibility, enabling large AM structures and repairs. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Nuclear Materials, Other |