Microstructure and properties of 316L stainless steel foils for pressure sensor of pressurized water reactor

Nuclear Engineering and Technology

Fusheng Pan¹  Dongzhe Wang²  Fei Guo³  Yanlong Ma⁴  Qubo He⁵  Haiding Liu⁵  Zhongwei Wang⁶ 

[1] Chongqing Materials Research Institute Co., Ltd, Chongqing, 400707, China;Corresponding author. College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China.;Chongqing Materials Research Institute Co., Ltd, Chongqing, 400707, China;College of Materials Science and Engineering, Chongqing University of Technology, Chongqing, 400054, China;College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China;National Engineering Research Center for Instrument Functional Materials, Chongqing, 400707, China;

关键词: Stainless steel foils;    Pressurized water reactor;    Pressure sensor;    Diaphragm material;   

DOI  :  

来源: DOAJ

【 摘 要 】

The microstructure and texture of three 316L foils of 25 μm thickness, which were subjected to different manufacturing process, were systematically characterized using advance analytical techniques. Then, the electrochemical property of the 316L foils in simulated pressurized water reactor (PWR) solution was analyzed using potentiodynamic polarization. The results showed that final rolling strain and annealing temperature had evident effect on grain size, fraction of recrystallization, grain boundary type and texture distribution. It was suggested that large final rolling strain could transfer Brass texture to Copper texture; low annealing temperature could limit the formation of preferable orientations in the rolling process to reduce anisotropy. Potentiodynamic polarization test showed that all samples exhibited good corrosion performance in the simulated primary PWR solution.

【 授权许可】

Unknown