Please use this identifier to cite or link to this item: https://apo.ansto.gov.au/dspace/handle/10238/9251
Title: Defect evolution in a NiMoCrFe alloy subjected to high-dose Kr ion irradiation at elevated temperature
Authors: de los Reyes, M
Voskoboinikov, R
Kirk, MA
Huang, H
Lumpkin, GR
Bhattacharyya, D
Keywords: Alloys
Irradiation
Temperature range
Molten salf reactors
Molecular dynamics method
Simulation
Issue Date: 1-Jun-2016
Publisher: Elsevier B.V.
Citation: de los Reyes, M., Voskoboinikov, R., Kirk, M. A., Huang, H., Lumpkin, G., & Bhattacharyya, D. (2016). Defect evolution in a NiMoCrFe alloy subjected to high-dose Kr ion irradiation at elevated temperature. Journal of Nuclear Materials, 474, 155-162. doi:10.1016/j.jnucmat.2016.03.019
Abstract: A candidate NiMoCrFe alloy (GH3535) for application as a structural material in a molten salt nuclear reactor was irradiated with 1 MeV Kr2+ ions (723 K, max dose of 100 dpa) at the IVEM-Tandem facility. The evolution of defects like dislocation loops and vacancy- and self-interstitial clusters was examined in-situ. For obtaining a deeper insight into the true nature of these defects, the irradiated sample was further analysed under a TEM post-facto. The results show that there is a range of different types of defects formed under irradiation. Interaction of radiation defects with each other and with pre-existing defects, e.g., linear dislocations, leads to the formation of complex microstructures. Molecular dynamics simulations used to obtain a greater understanding of these defect transformations showed that the interaction between linear dislocations and radiation induced dislocation loops could form faulted structures that explain the fringed contrast of these defects observed in TEM. © 2016 Elsevier B.V.
Gov't Doc #: 8995
URI: https://doi.org/10.1016/j.jnucmat.2016.03.019
http://apo.ansto.gov.au/dspace/handle/10238/9251
ISSN: 0022-3115
Appears in Collections:Journal Articles

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.