Abstract
The evolution of radiation-induced defects in Ni and the single-phase concentrated solid solution alloy, NiCoCr, were investigated during in situ 2.8 MeV Au ion irradiation and post-irradiation analysis using transmission electron microscopy. Compared to Ni, both the size and area density of defect clusters decreased in NiCoCr under the same irradiation conditions, suggesting that the chemical complexity, i.e., randomness of lattice site occupations, of NiCoCr suppressed radiation-induced damage. One-dimensional glide of defect clusters was observed in Ni but not in the NiCoCr alloy. The structural nature of small defect clusters in NiCoCr were further investigated using high-angle annular dark field scanning transmission electron microscopy.
| Original language | English |
|---|---|
| Pages (from-to) | 502-509 |
| Number of pages | 8 |
| Journal | Journal of Nuclear Materials |
| Volume | 523 |
| DOIs | |
| State | Published - Sep 2019 |
Funding
This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan ( http://energy.gov/downloads/doe-public-access-plan ). This work was supported as part of the Energy Dissipation to Defect Evolution (EDDE) , an Energy Frontier Research Center funded by the US Department of Energy, Office of Science , Basic Energy Sciences under contract number DE-AC05-00OR22725 . The post-irradiation microscopy analysis was conducted at the Center for Nanophase Materials Sciences , which is a DOE Office of Science User Facility. The authors would like to thank Drs. C.A. Taylor and A. Monterrrosa, as well as Mr. D.L. Buller for their assistance. This work was performed, in part, at the Center for Integrated Nanotechnologies, an Office of Science User Facility operated for the U.S. Department of Energy (DOE) Office of Science. Sandia National Laboratories is a multi-mission laboratory managed and operated by National Technology and Engineering Solutions of Sandia, LLC., a wholly owned subsidiary of Honeywell International, Inc., for the U.S. DOE's National Nuclear Security Administration under contract DE-NA-0003525. The views expressed in the article do not necessarily represent the views of the U.S. DOE or the United States Government. This work was supported as part of the Energy Dissipation to Defect Evolution (EDDE), an Energy Frontier Research Center funded by the US Department of Energy, Office of Science, Basic Energy Sciences under contract number DE-AC05-00OR22725. The post-irradiation microscopy analysis was conducted at the Center for Nanophase Materials Sciences, which is a DOE Office of Science User Facility. The authors would like to thank Drs. C.A. Taylor and A. Monterrrosa, as well as Mr. D.L. Buller for their assistance. This work was performed, in part, at the Center for Integrated Nanotechnologies, an Office of Science User Facility operated for the U.S. Department of Energy (DOE) Office of Science. Sandia National Laboratories is a multi-mission laboratory managed and operated by National Technology and Engineering Solutions of Sandia, LLC. a wholly owned subsidiary of Honeywell International, Inc. for the U.S. DOE's National Nuclear Security Administration under contract DE-NA-0003525. The views expressed in the article do not necessarily represent the views of the U.S. DOE or the United States Government.
| Funders | Funder number |
|---|---|
| DOE Office of Science | |
| US Department of Energy | |
| U.S. Department of Energy | |
| Office of Science | |
| Basic Energy Sciences | DE-AC05-00OR22725 |
| National Nuclear Security Administration | DE-NA-0003525 |
| Sandia National Laboratories |
Keywords
- Defect analysis
- In situ irradiation
- Single-phase concentrated solid solution alloys
- Transmission electron microscopy