Theoretical prediction of radiation-enhanced diffusion behavior in nickel under self-ion irradiation
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Theoretical prediction of radiation-enhanced diffusion behavior in nickel under self-ion irradiation Xiao-Ya Chen1,2 • A-Li Wen2 • Cui-Lan Ren2,3 • Cheng-Bin Wang2,3 Wei Zhang2,3 • He-Fei Huang2 • Zhi-Wen Chen1 • Ping Huai2,4,5
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Received: 8 April 2020 / Revised: 1 June 2020 / Accepted: 3 June 2020 China Science Publishing & Media Ltd. (Science Press), Shanghai Institute of Applied Physics, the Chinese Academy of Sciences, Chinese Nuclear Society and Springer Nature Singapore Pte Ltd. 2020
Abstract The enhanced diffusion in materials under irradiation plays an important role in the long-term microstructural evolution. In this work, the self-ion irradiation in nickel was used as a model system to study the effect of radiation-enhanced diffusion on the implanted ion profiles. Initially, the depth profiles of vacancies and implanted ions for nickel self-ion irradiation with ion energies up to 15 MeV were computed by the high-efficiency Monte Carlo code IM3D (Irradiation of Materials in
This work was partially supported by the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDA02040100), the National Natural Science Foundation of China (Grant No. 11975304), and the Shanghai Municipal Science and Technology Commission (19ZR1418100).
Electronic supplementary material The online version of this article (https://doi.org/10.1007/s41365-020-00791-w) contains supplementary material, which is available to authorized users. & Cui-Lan Ren [email protected] & Zhi-Wen Chen [email protected] 1
School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
2
Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
3
Key Laboratory of Interfacial Physics and Technology, Chinese Academy of Sciences, Shanghai 201800, China
4
Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China
5
School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
3D). The results are in good agreement with those predicted by SRIM (Stopping and Range of Ions in Matter). Then, diffusion coefficients as functions of temperature and damage rate were obtained, and the depth-dependent diffusion coefficients at various temperatures and damage rates were also illustrated. For this purpose, we used a temperature-dependent effective sink concentration for nickel, which was estimated from the available experimental investigations on the damage structures of irradiated nickel. At length, case studies on the time evolution of implanted ion profiles under the condition of nickel selfirradiation were performed and discussed based on Fick’s second law. The results help to understand the fundamental diffusion properties in ion irradiation, especially under higher-dose irradiation. Keywords Self-ion irradiation in nickel Implanted ions Radiation-enhanced diffusion Monte Carlo simulation
1 Introduction H
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