Radiation damage buildup by athermal defect reactions in nickel and concentrated nickel alloys
- Lanzhou University (China). School of Nuclear Science and Technology; Univ. of Helsinki (Finland). Department of Physics and Helsinki Institute of Physics
- Univ. of Helsinki (Finland). Department of Physics and Helsinki Institute of Physics; National Research Nuclear University MEPhI, Moscow (Russia)
- Univ. of Helsinki (Finland). Department of Physics and Helsinki Institute of Physics
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science and Technology Division
- Lanzhou University (China). School of Nuclear Science and Technology
We develop a new method using binary collision approximation simulating the Rutherford backscattering spectrometry in channeling conditions (RBS/C) from molecular dynamics atom coordinates of irradiated cells. The approach allows comparing experimental and simulated RBS/C signals as a function of depth without fitting parameters. The simulated RBS/C spectra of irradiated Ni and concentrated solid solution alloys (CSAs, NiFe and NiCoCr) show a good agreement with the experimental results. The good agreement indicates the damage evolution under damage overlap conditions in Ni and CSAs at room temperature is dominated by defect recombination and migration induced by irradiation rather than activated thermally.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Energy Frontier Research Centers (EFRC) (United States). Energy Dissipation to Defect Evolution (EDDE)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1399546
- Journal Information:
- Materials Research Letters, Vol. 5, Issue 6; ISSN 2166-3831
- Publisher:
- Taylor and FrancisCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Similar Records
Temperature-dependent defect accumulation and evolution in Ni-irradiated NiFe concentrated solid-solution alloy
Delayed damage accumulation by athermal suppression of defect production in concentrated solid solution alloys