Radiation damage buildup by athermal defect reactions in nickel and concentrated nickel alloys [electronic resource].

Published: Washington, D.C. : United States. Dept. of Energy. Office of Basic Energy Sciences, 2017.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
Physical Description: pages 433-439 : digital, PDF file
Additional Creators: Oak Ridge National Laboratory, United States. Department of Energy. Office of Basic Energy Sciences, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary

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.

Report Numbers

E 1.99:1399546

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Published through SciTech Connect.
04/12/2017.
Materials Research Letters 5 6 ISSN 2166-3831 AM
S. Zhang; K. Nordlund; F. Djurabekova; F. Granberg; Y. Zhang; T. S. Wang.

Funding Information

AC05-00OR22725

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