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Title: Radiation damage buildup by athermal defect reactions in nickel and concentrated nickel alloys

Journal Article · · Materials Research Letters
 [1];  [2];  [2];  [3]; ORCiD logo [4];  [5]
  1. Lanzhou University (China). School of Nuclear Science and Technology; Univ. of Helsinki (Finland). Department of Physics and Helsinki Institute of Physics
  2. Univ. of Helsinki (Finland). Department of Physics and Helsinki Institute of Physics; National Research Nuclear University MEPhI, Moscow (Russia)
  3. Univ. of Helsinki (Finland). Department of Physics and Helsinki Institute of Physics
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science and Technology Division
  5. 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
Citation Metrics:
Cited by: 27 works
Citation information provided by
Web of Science

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Cited By (5)

Local segregation versus irradiation effects in high-entropy alloys: Steady-state conditions in a driven system journal September 2017
Radiation stability of nanocrystalline single-phase multicomponent alloys journal February 2019
Delayed damage accumulation by athermal suppression of defect production in concentrated solid solution alloys [Supplementary Data] preprint December 2017
Delayed damage accumulation by athermal suppression of defect production in concentrated solid solution alloys journal December 2017
Local segregation versus irradiation effects in high-entropy alloys: Steady-state conditions in a driven system text January 2017