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BAO Yichen, CHEN Zhigang, SHI Xiuqiang, LIU Xiaoqiang, ZHANG Lefu. Effects of Primary Water Chemistry on Fuel CRUD[J]. Corrosion & Protection, 2022, 43(10): 1-6,32. DOI: 10.11973/fsyfh-202210001
Citation: BAO Yichen, CHEN Zhigang, SHI Xiuqiang, LIU Xiaoqiang, ZHANG Lefu. Effects of Primary Water Chemistry on Fuel CRUD[J]. Corrosion & Protection, 2022, 43(10): 1-6,32. DOI: 10.11973/fsyfh-202210001
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Effects of Primary Water Chemistry on Fuel CRUD

  • 1. Shanghai Nuclear Engineering Research and Design Institute, Shanghai 200233, China;

  • 2. School of Nuclear Science and Engineering, Shanghai JiaoTong University, Shanghai 200240, China

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  • Received Date: November 10, 2020
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    • Abstract
  • The current situation of foreign researches on the effects of primary water chemistry on fuel CRUD deposition are analyzed. The results show that the CRUD deposition on the surface of zirconium alloy cladding significantly decreases with the increase of primary coolant pHT. Some studies show that CRUD deposition increases with the increase of dissolved hydrogen, while others show that dissolved hydrogen has no influence on CRUD deposition. Zinc injection might reduce CRUD deposition, and might also increase CRUD deposition. The concentration of Ni and Fe corrosion products in the coolant and the initial surface properties of zirconium alloy cladding materials also affect the deposition of CRUD:the higher the concentration of corrosion products, the more the CRUD deposition; The thicker the surface oxide film of zirconium alloy, the more the CRUD deposition.
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    • References (21)
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