Effects of pre-strain on hydrogen-induced stress corrosion cracking behavior of Q345R steel in hydrofluoric acid vapor environment
This study investigates microstructure, hydrogen diffusion properties, and stress corrosion cracking (SCC) behavior of Q345R steel subject to pre-applied strains of 1 %, 3 %, and 5 %. The relationship between microstructure and SCC susceptibility in hydrofluoric acid (HF) vapor is examined. It is fo...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-12-01
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| Series: | Corrosion Communications |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667266924000392 |
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| author | Hailong Dai Jiahui Tang Shouwen Shi Zhe Zhang Xu Chen |
| author_facet | Hailong Dai Jiahui Tang Shouwen Shi Zhe Zhang Xu Chen |
| author_sort | Hailong Dai |
| collection | DOAJ |
| description | This study investigates microstructure, hydrogen diffusion properties, and stress corrosion cracking (SCC) behavior of Q345R steel subject to pre-applied strains of 1 %, 3 %, and 5 %. The relationship between microstructure and SCC susceptibility in hydrofluoric acid (HF) vapor is examined. It is found that pre-strain cannot change the microstructure of Q345R steel but increases dislocation density. The increasing SCC sensitivity of Q345R steel in HF vapor is associated with the dislocation density induced by pre-strain. With increasing pre-strain, dislocation density and reversible hydrogen trap increase, and interaction between hydrogen and dislocation accelerates hydrogen-induced SCC. In addition, irreversible hydrogen traps caused by high pre-strain can severely aggravate hydrogen-induced SCC, resulting in high SCC vulnerability. |
| format | Article |
| id | doaj-art-4e35a0d084a44ed186858a3f983574d2 |
| institution | OA Journals |
| issn | 2667-2669 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Corrosion Communications |
| spelling | doaj-art-4e35a0d084a44ed186858a3f983574d22025-08-20T02:07:17ZengElsevierCorrosion Communications2667-26692024-12-0116718010.1016/j.corcom.2023.11.004Effects of pre-strain on hydrogen-induced stress corrosion cracking behavior of Q345R steel in hydrofluoric acid vapor environmentHailong Dai0Jiahui Tang1Shouwen Shi2Zhe Zhang3Xu Chen4School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China; Tianjin Key Laboratory of Chemical Process Safety and Equipment Technology, Tianjin 300350, ChinaSchool of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China; Tianjin Key Laboratory of Chemical Process Safety and Equipment Technology, Tianjin 300350, ChinaSchool of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China; Tianjin Key Laboratory of Chemical Process Safety and Equipment Technology, Tianjin 300350, China; Zhejiang Institute of Tianjin University, Ningbo 315201, China; Corresponding authors.School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China; Tianjin Key Laboratory of Chemical Process Safety and Equipment Technology, Tianjin 300350, China; Zhejiang Institute of Tianjin University, Ningbo 315201, ChinaSchool of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China; Tianjin Key Laboratory of Chemical Process Safety and Equipment Technology, Tianjin 300350, China; Zhejiang Institute of Tianjin University, Ningbo 315201, China; Corresponding authors.This study investigates microstructure, hydrogen diffusion properties, and stress corrosion cracking (SCC) behavior of Q345R steel subject to pre-applied strains of 1 %, 3 %, and 5 %. The relationship between microstructure and SCC susceptibility in hydrofluoric acid (HF) vapor is examined. It is found that pre-strain cannot change the microstructure of Q345R steel but increases dislocation density. The increasing SCC sensitivity of Q345R steel in HF vapor is associated with the dislocation density induced by pre-strain. With increasing pre-strain, dislocation density and reversible hydrogen trap increase, and interaction between hydrogen and dislocation accelerates hydrogen-induced SCC. In addition, irreversible hydrogen traps caused by high pre-strain can severely aggravate hydrogen-induced SCC, resulting in high SCC vulnerability.http://www.sciencedirect.com/science/article/pii/S2667266924000392Q345R steelHydrogen embrittlementStress corrosion crackingHydrofluoric acid |
| spellingShingle | Hailong Dai Jiahui Tang Shouwen Shi Zhe Zhang Xu Chen Effects of pre-strain on hydrogen-induced stress corrosion cracking behavior of Q345R steel in hydrofluoric acid vapor environment Corrosion Communications Q345R steel Hydrogen embrittlement Stress corrosion cracking Hydrofluoric acid |
| title | Effects of pre-strain on hydrogen-induced stress corrosion cracking behavior of Q345R steel in hydrofluoric acid vapor environment |
| title_full | Effects of pre-strain on hydrogen-induced stress corrosion cracking behavior of Q345R steel in hydrofluoric acid vapor environment |
| title_fullStr | Effects of pre-strain on hydrogen-induced stress corrosion cracking behavior of Q345R steel in hydrofluoric acid vapor environment |
| title_full_unstemmed | Effects of pre-strain on hydrogen-induced stress corrosion cracking behavior of Q345R steel in hydrofluoric acid vapor environment |
| title_short | Effects of pre-strain on hydrogen-induced stress corrosion cracking behavior of Q345R steel in hydrofluoric acid vapor environment |
| title_sort | effects of pre strain on hydrogen induced stress corrosion cracking behavior of q345r steel in hydrofluoric acid vapor environment |
| topic | Q345R steel Hydrogen embrittlement Stress corrosion cracking Hydrofluoric acid |
| url | http://www.sciencedirect.com/science/article/pii/S2667266924000392 |
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