The Studies of Irradiation Hardening and RIS on IASCC of Reactor Internals Bolts

Abstract:

IASCC of stainless steel has been the most important issue for internals BFBs. The inspection data analysis indicates that there is a closed relation between irradiation fluence and cracked BFBs distribution. Then the nanoindentation and 3DAP tests were carried out to study the hardening and radiation induced segregation (RIS) behaviors of the reactor internals stainless steel specimens irradiated with 6 MeV Xe ions at room temperature. It is indicated that higher irradiation damage will cause more significant hardening and RIS and consequently increase the IASCC susceptibility.

• Periodical: Key Engineering Materials (Volume 871)
• Pages: 92-97
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.871.92
• Online since: January 2021
• Authors: Xiao Wei Li, Chao Liang Xu*, Ying Hui An, Xiang Bing Liu, Fei Xue, Yuan Fei Li, Wang Jie Qian
• Keywords: Hardening, IASCC, Irradiation, RIS

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