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Modelling electrical corrosion potential of 304 stainless steel under fusion power plant environment

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Abstract

Predicting the electrical corrosion potential (ECP) of type 304 stainless steel, the structural material of recirculation pipes in fusion power plants, is important because the growth rate of intergranular stress corrosion crack (IGSCC) of 304 stainless steel is closely related to ECP. In this work, a new model has been developed, by modifying existing models, to calculate the ECP of recirculation pipes in future fusion power plant. The calculation results indicate that merely injecting hydrogen cannot reduce ECP below EIGSCC if the dose rate exceeds a threshold, other assisted water chemistry controlling method is necessary.

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Acknowledgements

This research is funded by National Natural Science Foundation of China (11775214), National Magnetic Confinement Fusion Science Program of China (2014GB122001).

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Authors and Affiliations

  1. School of Physical Sciences, University of Science and Technology of China, No. 96 Jinzhai Road, Hefei, 230026, Anhui, People’s Republic of China

    Zhong Fang, Jia Tang, Jiaxin Xiao, Hanqin Weng & Mingzhang Lin

  2. School of Mechanical Engineering, Shanghai Jiao Tong University, Mechanical Building, 800 Dong Chuan Road, Shanghai, 200240, People’s Republic of China

    Lili Tong & Xuewu Cao

  3. Institute of Nuclear Energy Safety Technology, Chinese Academy of Sciences, Hefei, 230031, People’s Republic of China

    Mingzhang Lin

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  1. Zhong Fang
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  2. Jia Tang
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Correspondence to Zhong Fang.

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Fang, Z., Tang, J., Xiao, J. et al. Modelling electrical corrosion potential of 304 stainless steel under fusion power plant environment. J Radioanal Nucl Chem 319, 303–314 (2019). https://doi.org/10.1007/s10967-018-6299-x

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  • DOI: https://doi.org/10.1007/s10967-018-6299-x

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