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

descriptionPublicationkeyboard_double_arrow_right Article , Journal 01 Jun 2021 Korea (Republic of) Publisher:Elsevier BVJournal:Nuclear Engineering and Technology, volume 53, pages 1,909-1,923 (issn: 1738-5733,

Authors: Park, Jae Phil; Yoo, Seung Chang; Kim, Ji Hyun; Bahn, Chi Bum;

doi: 10.1016/j.net.2020.12.005

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

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Abstract

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.

Country

Korea (Republic of)

Related Organizations

Pusan National University
Korea (Republic of)
Ulsan National Institute of Science and Technology
Korea (Republic of)
UNIST (Ulsan National Institute of Science and Technology)
Korea (Republic of)
UNIST (Ulsan National Institute of Science and Technology)
Korea (Republic of)
Pusan National University
Korea (Republic of)

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Keywords

Thermal aging, Probabilistic model, TK9001-9401, Nuclear engineering. Atomic power, Cold rolling, PWSCC Initiation

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