Development of probabilistic primary water stress corrosion cracking initiation model for alloy 182 welds considering thermal aging and cold work effects

Nuclear Engineering and Technology

Chi Bum Bahn¹  Jae Phil Park²  Seung Chang Yoo³  Ji Hyun Kim³ 

[1] Corresponding author.;School of Mechanical Engineering, Pusan National University, Busan, 46241, Republic of Korea;School of Mechanical, Aerospace and Nuclear Engineering, Ulsan National Institute of Science and Technology, Ulsan, 44919, Republic of Korea;

关键词: PWSCC Initiation;    Thermal aging;    Cold rolling;    Probabilistic model;   

DOI  :  

来源: DOAJ

【 摘 要 】

We experimentally investigated the effects of thermal aging and cold work on the microstructure, mechanical properties, and primary water stress corrosion cracking (PWSCC) initiation time for Alloy 182 welds. The effects of thermal aging and cold work on the PWSCC initiation time of Alloy 182 were modeled based on the plastic energy concept and the PWSCC initiation data of this study and previous reports by considering censored data. Based on the results, it is estimated that the PWSCC resistance of the Alloy 182 weld firstly increases and then decreases with thermal aging time when the applied stress is kept constant.

【 授权许可】

Unknown