Preliminary Characterization and Evaluation on FFF Manufactured 316H and ODS Steels

Technical Report · Fri Sep 29 04:00:00 EDT 2023

DOI:https://doi.org/10.2172/2478113· OSTI ID:2478113

Burns, Carolyn A. M. ^[1]; Jana, Saumyadeep ^[1]; Lall, Amrita ^[1]; Kennedy, Zachary C. ^[1]; Fenn, Michelle D. ^[1]; Silverstein, Joshua A. ^[1]; Seymour, Lorraine M. ^[1]; van Rooyen, Isabella Johanna ^[1]

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1. Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)

The Advanced Materials and Manufacturing Technology (AMMT) program develops cross-cutting technologies in support of a broad range of nuclear reactor technologies and maintains U.S. leadership in materials and manufacturing technologies for nuclear energy applications. The overarching vision of AMMT is to accelerate the development, qualification, demonstration, and deployment of advanced materials and manufacturing technologies to enable reliable and economical nuclear energy. Solid-state advanced manufacturing techniques can overcome some of the challenges in liquid-based additive manufacturing (AM) processes and should therefore be considered in material design and manufacturing as well. The work presented in this report forms part of a study on solid-state AM techniques of 316 stainless steels (SS) and oxide dispersion strengthened (ODS) steel components and supports the vision and goals of the AMMT program relevant to accelerate the development and deployment of advanced manufacturing processes. Achieving this can provide a safety improvement through larger safety margins, economic benefit for higher efficiency during operation, and a cost reduction through more effective manufacturing processes and less waste. This study provides preliminary information on development of the fused-filament fabrication (FFF) process using different powder types to demonstrate the sensitivity, and therefore the characterization of these sample components. The full solid-state manufacturing feasibility study will be completed and reported in a final feasibility evaluation during 2025. The study investigation used two 14YWT ODS powder batches, which provided information and the effect of different powder morphologies on manufacturability. The two 316SS powders demonstrated the effect of powder size on the manufacturability using FFF. Two product forms, namely a honeycomb structure and flat samples, were manufactured to demonstrate the flexibility of product form.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE Office of Nuclear Energy (NE)
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 2478113
• Report Number(s): PNNL--34985
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE