Severe Plastic Deformation Assisted Carbide Precipitation in Fe-21Cr-5Al Alloy
Abstract
FeCrAl alloys are promising materials for fuel cladding in light water reactors due to their high-temperature oxidation resistance in a steam environment. In this study, microstructural analysis revealed that Cr-C precipitation is enhanced in a severely plastically deformed (SPD) Fe-21Cr-5Al alloy [Kanthal-D (KD)], as compared to that in a coarse grained (CG) specimen. SPD was performed using equal-channel angular pressing (ECAP) and high-pressure torsion (HPT). The enhanced precipitation is attributed to an increase in the volume fraction of grain boundaries (GB) and to enhanced diffusion owing to increased point defects during ECAP and HPT.
Recommended Citation
M. Arivu et al., "Severe Plastic Deformation Assisted Carbide Precipitation in Fe-21Cr-5Al Alloy," Materials Letters, vol. 253, pp. 78 - 81, Elsevier B.V., Oct 2019.
The definitive version is available at https://doi.org/10.1016/j.matlet.2019.05.139
Department(s)
Materials Science and Engineering
Research Center/Lab(s)
Intelligent Systems Center
Keywords and Phrases
Electron microscopy; Grain boundaries; Microstructure; Nanocrystalline materials; Nuclear materials; Segregation
International Standard Serial Number (ISSN)
0167-577X
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2019 Elsevier B.V., All rights reserved.
Publication Date
01 Oct 2019
Comments
This research is financially supported by U.S. Department of Energy , Office of Nuclear Energy through the NEET-NSUF (Nuclear Energy Enabling Technology-- Nuclear Science User Facility) program (award number DE-NE0008524).