Improvement of stress corrosion cracking resistance by low cycle fatigue of a CrNiMoV steel
Abstract Low cycle fatigue often interacts with stress corrosion cracking behavior. In this work, the effect of low cycle fatigue on stress corrosion cracking susceptibility of a CrNiMoV steel was investigated by interrupted fatigue tests in air and slow strain rate tensile tests in 3.5 wt% NaCl sol...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-07-01
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| Series: | npj Materials Degradation |
| Online Access: | https://doi.org/10.1038/s41529-023-00372-3 |
| _version_ | 1797778806224715776 |
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| author | Yu-Hui Huang Fang-Xin Yang Nan Wang Ming-Liang Zhu Fu-Zhen Xuan |
| author_facet | Yu-Hui Huang Fang-Xin Yang Nan Wang Ming-Liang Zhu Fu-Zhen Xuan |
| author_sort | Yu-Hui Huang |
| collection | DOAJ |
| description | Abstract Low cycle fatigue often interacts with stress corrosion cracking behavior. In this work, the effect of low cycle fatigue on stress corrosion cracking susceptibility of a CrNiMoV steel was investigated by interrupted fatigue tests in air and slow strain rate tensile tests in 3.5 wt% NaCl solution at 180 °C. Microstructure evolution characterization verified cyclic softening and was found to improve stress corrosion cracking resistance with crack deflection along lath martensites due to a decrease of residual stress, phase transformation and increase of low-energy structures. As a semi-quantitative damage indicator, the microstructure evolution due to low cycle fatigue damage can be well described by the Kernel Average Misorientation (KAM) from the Electron Backscatter Diffraction technique. The effect of fatigue damage on stress corrosion sensitivity was found predictable based on the linear relationship between KAM and stress corrosion sensitivity factor of reduction of area. |
| first_indexed | 2024-03-12T23:21:52Z |
| format | Article |
| id | doaj.art-fb95be0cb2a6460e9fcd3fe2340cf584 |
| institution | Directory Open Access Journal |
| issn | 2397-2106 |
| language | English |
| last_indexed | 2024-03-12T23:21:52Z |
| publishDate | 2023-07-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Materials Degradation |
| spelling | doaj.art-fb95be0cb2a6460e9fcd3fe2340cf5842023-07-16T11:23:44ZengNature Portfolionpj Materials Degradation2397-21062023-07-017111010.1038/s41529-023-00372-3Improvement of stress corrosion cracking resistance by low cycle fatigue of a CrNiMoV steelYu-Hui Huang0Fang-Xin Yang1Nan Wang2Ming-Liang Zhu3Fu-Zhen Xuan4Key Laboratory of Pressure Systems and Safety, Ministry of Education, East China University of Science and TechnologyKey Laboratory of Pressure Systems and Safety, Ministry of Education, East China University of Science and TechnologyKey Laboratory of Pressure Systems and Safety, Ministry of Education, East China University of Science and TechnologyKey Laboratory of Pressure Systems and Safety, Ministry of Education, East China University of Science and TechnologyKey Laboratory of Pressure Systems and Safety, Ministry of Education, East China University of Science and TechnologyAbstract Low cycle fatigue often interacts with stress corrosion cracking behavior. In this work, the effect of low cycle fatigue on stress corrosion cracking susceptibility of a CrNiMoV steel was investigated by interrupted fatigue tests in air and slow strain rate tensile tests in 3.5 wt% NaCl solution at 180 °C. Microstructure evolution characterization verified cyclic softening and was found to improve stress corrosion cracking resistance with crack deflection along lath martensites due to a decrease of residual stress, phase transformation and increase of low-energy structures. As a semi-quantitative damage indicator, the microstructure evolution due to low cycle fatigue damage can be well described by the Kernel Average Misorientation (KAM) from the Electron Backscatter Diffraction technique. The effect of fatigue damage on stress corrosion sensitivity was found predictable based on the linear relationship between KAM and stress corrosion sensitivity factor of reduction of area.https://doi.org/10.1038/s41529-023-00372-3 |
| spellingShingle | Yu-Hui Huang Fang-Xin Yang Nan Wang Ming-Liang Zhu Fu-Zhen Xuan Improvement of stress corrosion cracking resistance by low cycle fatigue of a CrNiMoV steel npj Materials Degradation |
| title | Improvement of stress corrosion cracking resistance by low cycle fatigue of a CrNiMoV steel |
| title_full | Improvement of stress corrosion cracking resistance by low cycle fatigue of a CrNiMoV steel |
| title_fullStr | Improvement of stress corrosion cracking resistance by low cycle fatigue of a CrNiMoV steel |
| title_full_unstemmed | Improvement of stress corrosion cracking resistance by low cycle fatigue of a CrNiMoV steel |
| title_short | Improvement of stress corrosion cracking resistance by low cycle fatigue of a CrNiMoV steel |
| title_sort | improvement of stress corrosion cracking resistance by low cycle fatigue of a crnimov steel |
| url | https://doi.org/10.1038/s41529-023-00372-3 |
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