Journal article
The role of grain size in He bubble formation: Implications for swelling resistance
Journal of nuclear materials, v 484, pp 236-244
01 Feb 2017
Abstract
Nanocrystalline metals are postulated as radiation resistant materials due to their high defect and particle (e.g. Helium) sink density. Here, the performance of nanocrystalline iron films is investigated in-situ in a transmission electron microscope (TEM) using He irradiation at 700 K. Automated crystal orientation mapping is used in concert with in-situ TEM to explore the role of grain orientation and grain boundary character on bubble density trends. Bubble density as a function of three key grain size regimes is demonstrated. While the overall trend revealed an increase in bubble density up to a saturation value, grains with areas ranging from 3000 to 7500 nm(2) show a scattered distribution. An extrapolated swelling resistance based on bubble size and areal density indicated that grains with sizes less than 2000 nm(2) possess the greatest apparent resistance. Moreover, denuded zones are found to be independent of grain size, grain orientation, and grain boundary misorientation angle. Published by Elsevier B.V.
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Details
- Title
- The role of grain size in He bubble formation: Implications for swelling resistance
- Creators
- O. El-Atwani - Drexel UniversityJ. E. Nathaniel - Drexel UniversityA. C. Leff - Drexel UniversityB. R. Muntifering - Sandia National Laboratories CaliforniaJ. K. Baldwin - Los Alamos National LaboratoryK. Hattar - Sandia National Laboratories CaliforniaM. L. Taheri - Drexel University
- Publication Details
- Journal of nuclear materials, v 484, pp 236-244
- Publisher
- Elsevier
- Number of pages
- 9
- Grant note
- DE-SC0008274 / United States Department of Energy Basic Energy Sciences (DOE/BES) under the Early Career program; United States Department of Energy (DOE) DE-AC04-94AL85000 / U.S. Department of Energy's National Nuclear Security Administration; National Nuclear Security Administration DE-AC52-06NA25396; DE-AC04-94AL85000 / U.S. Department of Energy (DOE) Office of Science; United States Department of Energy (DOE)
- Resource Type
- Journal article
- Language
- English
- Web of Science ID
- WOS:000393246300026
- Scopus ID
- 2-s2.0-85006761744
- Other Identifier
- 991019335235504721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Materials Science, Multidisciplinary
- Nuclear Science & Technology