Development of prediction model for stress corrosion cracking probability in scratched alloy 690TT heat transfer tubes

被引：2

作者：

Li, Rongbo ^{[1
,4
]}

Wu, Bin ^{[2
]}

Meng, Fanjiang ^{[1
]}

Wang, Haitao ^{[3
]}

Hou, Dongcen ^{[5
]}

Ming, Hongliang ^{[2
]}

Wang, Jianqiu ^{[2
]}

Han, En-Hou ^{[2
,3
]}

机构：

[1] Shanghai Nucl Engn Res & Design Inst Ltd Co, Shanghai 200233, Peoples R China

[2] Chinese Acad Sci, Key Lab Nucl Mat & Safety Assessment, Inst Met Res, Shenyang 110016, Peoples R China

[3] Inst Corros Sci & Technol, Guangzhou 510530, Peoples R China

[4] Fudan Univ, Dept Mat Sci, Shanghai 200433, Peoples R China

[5] Chinese Acad Sci, Inst Met Res, Anal & Test Ctr, Shenyang 110016, Peoples R China

来源：

CORROSION COMMUNICATIONS | 2025年 / 19卷

基金：

中国国家自然科学基金;

关键词：

Alloy; 690TT; Scratch; Stress corrosion cracking; High temperature pressurized water; Prediction model;

D O I：

10.1016/j.corcom.2024.05.001

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study investigated stress corrosion cracking (SCC) behavior of scratched areas across various depths and stress on alloy 690TT, through precise loading (252 samples in total) and SCC tests. Resultsindicate that SCC mainly initiates at the side walls of the scratch grooves rather than the bottom (sustains the highest stress level), given the low applied load stress about 13% of that at the bottom. Scratch depth is a more significant factor to SCC initiation in scratch groove than loading stress. A probabilistic model was established to predict SCC initiation induced by scratches of varyingdepths. (c) 2024 The Author(s). Published by Elsevier B.V. on behalf of Institute of Metal Research, Chinese Academy of Sciences. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

引用

页码：1 / 13

页数：13

共 28 条

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