A novel approach for manufacturing oxide dispersion strengthened (ODS) steel cladding tubes using cold spray technology
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- Title
- A novel approach for manufacturing oxide dispersion strengthened (ODS) steel cladding tubes using cold spray technology
- Authors
- Maier Benjamin; Lenling Mia; Yeom Hwasung; Johnson Greg; Maloy Stuart; Sridharan Kumar
- Date Issued
- 2019-07
- Publisher
- 한국원자력학회
- Abstract
- A novel fabrication method of oxide dispersion strengthened (ODS) steel cladding tubes for advanced fast reactors has been investigated using the cold spray powder-based materials deposition process. Cold spraying has the potential advantage for rapidly fabricating ODS cladding tubes in comparison with the conventional multi-step extrusion process. A gas atomized spherical 14YWT (Fe-14%Cr, 3%W, 0.4%Ti, 0.2% Y, 0.01%O) powder was sprayed on a rotating cylindrical 6061-T6 aluminum mandrel using nitrogen as the propellant gas. The powder lacked the oxygen content needed to precipitate the nanoclusters in ODS steel, therefore this work was intended to serve as a proof-of-concept study to demonstrate that free-standing steel cladding tubes with prototypical ODS composition could be manufactured using the cold spray process. The spray process produced an approximately 1-mm thick, dense 14YWT deposit on the aluminum-alloy tube. After surface polishing of the 14YWT deposit to obtain desired cladding thickness and surface roughness, the aluminum-alloy mandrel was dissolved in an alkaline medium to leave behind a free-standing ODS tube. The as-fabricated cladding tube was annealed at 1000 degrees C for 1 h in an argon atmosphere to improve the overall mechanical properties of the cladding. (C) 2019 Korean Nuclear Society, Published by Elsevier Korea LLC.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/118884
- DOI
- 10.1016/j.net.2019.01.015
- ISSN
- 1738-5733
- Article Type
- Article
- Citation
- Nuclear Engineering and Technology, vol. 51, no. 4, page. 1069 - 1074, 2019-07
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