Effect of High Cl<sup>-</sup> Environment on Stress Corrosion Cracking Behavior of M152 and 17-4PH High-strength Steels
The stress corrosion cracking (SCC) behavior and mechanism of M152 and 17-4PH high-strength steels in high Cl<sup>-</sup> environment were studied through neutral salt spray test and slow strain rate tensile (SSRT) test. The result shows that M152 and 17-4PH steels exhibit a certain sens...
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| Format: | Article |
| Language: | zho |
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Journal of Materials Engineering
2018-02-01
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| Series: | Cailiao gongcheng |
| Subjects: | |
| Online Access: | http://jme.biam.ac.cn/CN/Y2018/V46/I2/105 |
| _version_ | 1828075010159280128 |
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| author | WU Wei HAO Wen-kui LI Xiao-gang ZHONG Ping DONG Chao-fang LIU Zhi-yong XIAO Kui |
| author_facet | WU Wei HAO Wen-kui LI Xiao-gang ZHONG Ping DONG Chao-fang LIU Zhi-yong XIAO Kui |
| author_sort | WU Wei |
| collection | DOAJ |
| description | The stress corrosion cracking (SCC) behavior and mechanism of M152 and 17-4PH high-strength steels in high Cl<sup>-</sup> environment were studied through neutral salt spray test and slow strain rate tensile (SSRT) test. The result shows that M152 and 17-4PH steels exhibit a certain sensitivity to SCC in Cl<sup>-</sup> environment, elongations of them both decrease with the increasing time of early neutral salt spray test, and the SCC sensitivity gradually increases. Comparing the fracture morphology with lateral crack through SEM, it can be found that the fracture mechanism of M152 and 17-4PH high-strength steels converts ductile fracture to brittle fracture as the extension of neutral salt spray test time. The synergistic effect of anodic dissolution (AD) and hydrogen embrittlement (HE) result in the occurrence of SCC in high Cl<sup>-</sup> environment, and Cl<sup>-</sup> can promote the AD process. Due to the obvious effect of HE, 17-4PH steel has higher SCC sensitivity than M152 steel with the same time of early neutral salt spray test. 17-4PH high-strength steel is more prone to SCC than M152 in high Cl<sup>-</sup> environment. |
| first_indexed | 2024-04-11T01:51:44Z |
| format | Article |
| id | doaj.art-2b7bc78343524552a328829631f71ed1 |
| institution | Directory Open Access Journal |
| issn | 1001-4381 1001-4381 |
| language | zho |
| last_indexed | 2024-04-11T01:51:44Z |
| publishDate | 2018-02-01 |
| publisher | Journal of Materials Engineering |
| record_format | Article |
| series | Cailiao gongcheng |
| spelling | doaj.art-2b7bc78343524552a328829631f71ed12023-01-03T06:08:15ZzhoJournal of Materials EngineeringCailiao gongcheng1001-43811001-43812018-02-0146210511410.11868/j.issn.1001-4381.2015.000724201802000724Effect of High Cl<sup>-</sup> Environment on Stress Corrosion Cracking Behavior of M152 and 17-4PH High-strength SteelsWU Wei0HAO Wen-kui1LI Xiao-gang2ZHONG Ping3DONG Chao-fang4LIU Zhi-yong5XIAO Kui6Corrosion and Protection Center, University of Science and Technology Beijing, Beijing 100083, ChinaCorrosion and Protection Center, University of Science and Technology Beijing, Beijing 100083, ChinaCorrosion and Protection Center, University of Science and Technology Beijing, Beijing 100083, ChinaAECC Beijing Institute of Aeronautical Materials, Beijing 100095, ChinaCorrosion and Protection Center, University of Science and Technology Beijing, Beijing 100083, ChinaCorrosion and Protection Center, University of Science and Technology Beijing, Beijing 100083, ChinaCorrosion and Protection Center, University of Science and Technology Beijing, Beijing 100083, ChinaThe stress corrosion cracking (SCC) behavior and mechanism of M152 and 17-4PH high-strength steels in high Cl<sup>-</sup> environment were studied through neutral salt spray test and slow strain rate tensile (SSRT) test. The result shows that M152 and 17-4PH steels exhibit a certain sensitivity to SCC in Cl<sup>-</sup> environment, elongations of them both decrease with the increasing time of early neutral salt spray test, and the SCC sensitivity gradually increases. Comparing the fracture morphology with lateral crack through SEM, it can be found that the fracture mechanism of M152 and 17-4PH high-strength steels converts ductile fracture to brittle fracture as the extension of neutral salt spray test time. The synergistic effect of anodic dissolution (AD) and hydrogen embrittlement (HE) result in the occurrence of SCC in high Cl<sup>-</sup> environment, and Cl<sup>-</sup> can promote the AD process. Due to the obvious effect of HE, 17-4PH steel has higher SCC sensitivity than M152 steel with the same time of early neutral salt spray test. 17-4PH high-strength steel is more prone to SCC than M152 in high Cl<sup>-</sup> environment.http://jme.biam.ac.cn/CN/Y2018/V46/I2/105high-strength steelSSRThigh Cl<sup>-</sup> environmentSCC |
| spellingShingle | WU Wei HAO Wen-kui LI Xiao-gang ZHONG Ping DONG Chao-fang LIU Zhi-yong XIAO Kui Effect of High Cl<sup>-</sup> Environment on Stress Corrosion Cracking Behavior of M152 and 17-4PH High-strength Steels Cailiao gongcheng high-strength steel SSRT high Cl<sup>-</sup> environment SCC |
| title | Effect of High Cl<sup>-</sup> Environment on Stress Corrosion Cracking Behavior of M152 and 17-4PH High-strength Steels |
| title_full | Effect of High Cl<sup>-</sup> Environment on Stress Corrosion Cracking Behavior of M152 and 17-4PH High-strength Steels |
| title_fullStr | Effect of High Cl<sup>-</sup> Environment on Stress Corrosion Cracking Behavior of M152 and 17-4PH High-strength Steels |
| title_full_unstemmed | Effect of High Cl<sup>-</sup> Environment on Stress Corrosion Cracking Behavior of M152 and 17-4PH High-strength Steels |
| title_short | Effect of High Cl<sup>-</sup> Environment on Stress Corrosion Cracking Behavior of M152 and 17-4PH High-strength Steels |
| title_sort | effect of high cl sup sup environment on stress corrosion cracking behavior of m152 and 17 4ph high strength steels |
| topic | high-strength steel SSRT high Cl<sup>-</sup> environment SCC |
| url | http://jme.biam.ac.cn/CN/Y2018/V46/I2/105 |
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