Analysis of the Effect of Applied Load on Crevice Corrosion Behavior
A two-dimensional numerical model incorporating solid mechanics, electrochemistry, mass diffusion, and ion migration processes is developed to investigate the load effect on the crevice corrosion. The model is a transient model of crevice corrosion occurring in cracks of 304 stainless steel in a dil...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Hindawi Limited
2023-01-01
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| Series: | Science and Technology of Nuclear Installations |
| Online Access: | http://dx.doi.org/10.1155/2023/5897980 |
| _version_ | 1797828830904188928 |
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| author | Fuqiang Yang Yue Zhang Jianzhou Zhang |
| author_facet | Fuqiang Yang Yue Zhang Jianzhou Zhang |
| author_sort | Fuqiang Yang |
| collection | DOAJ |
| description | A two-dimensional numerical model incorporating solid mechanics, electrochemistry, mass diffusion, and ion migration processes is developed to investigate the load effect on the crevice corrosion. The model is a transient model of crevice corrosion occurring in cracks of 304 stainless steel in a dilute NaCl solution, and the interaction between stress and electrochemical corrosion was considered. By solving the multiphysical coupling model in COMSOL, the effect of applied load on electrochemical corrosion in the crack tip region was calculated, and the local corrosion current density in the crack tip region with stress concentration within the crack was also calculated by using the Tafel relationship. The distribution of Fe2+ ion, Na+ ion, CL− ion, and H and O2 substance concentrations within the crack cavity is predicted by the equation analysis of substance transport. The results show that metal oxidation is more clearly affected by plastic deformation, the rate of hydrogen evolution reaction increases with stress enhancement, and the oxygen absorption reaction is not affected by stress strain. The distribution of iron ions, hydrogen, and oxygen within the crack is affected by the electrochemical reaction rate, and the distribution of iron ions, sodium ions, and chloride ions is affected by the electrolyte potential. |
| first_indexed | 2024-04-09T13:10:41Z |
| format | Article |
| id | doaj.art-e0c08863f52849d6a127fe41043e3a57 |
| institution | Directory Open Access Journal |
| issn | 1687-6083 |
| language | English |
| last_indexed | 2024-04-09T13:10:41Z |
| publishDate | 2023-01-01 |
| publisher | Hindawi Limited |
| record_format | Article |
| series | Science and Technology of Nuclear Installations |
| spelling | doaj.art-e0c08863f52849d6a127fe41043e3a572023-05-12T08:16:06ZengHindawi LimitedScience and Technology of Nuclear Installations1687-60832023-01-01202310.1155/2023/5897980Analysis of the Effect of Applied Load on Crevice Corrosion BehaviorFuqiang Yang0Yue Zhang1Jianzhou Zhang2Xi’an University of Science and TechnologyXi’an University of Science and TechnologyXi’an University of Science and TechnologyA two-dimensional numerical model incorporating solid mechanics, electrochemistry, mass diffusion, and ion migration processes is developed to investigate the load effect on the crevice corrosion. The model is a transient model of crevice corrosion occurring in cracks of 304 stainless steel in a dilute NaCl solution, and the interaction between stress and electrochemical corrosion was considered. By solving the multiphysical coupling model in COMSOL, the effect of applied load on electrochemical corrosion in the crack tip region was calculated, and the local corrosion current density in the crack tip region with stress concentration within the crack was also calculated by using the Tafel relationship. The distribution of Fe2+ ion, Na+ ion, CL− ion, and H and O2 substance concentrations within the crack cavity is predicted by the equation analysis of substance transport. The results show that metal oxidation is more clearly affected by plastic deformation, the rate of hydrogen evolution reaction increases with stress enhancement, and the oxygen absorption reaction is not affected by stress strain. The distribution of iron ions, hydrogen, and oxygen within the crack is affected by the electrochemical reaction rate, and the distribution of iron ions, sodium ions, and chloride ions is affected by the electrolyte potential.http://dx.doi.org/10.1155/2023/5897980 |
| spellingShingle | Fuqiang Yang Yue Zhang Jianzhou Zhang Analysis of the Effect of Applied Load on Crevice Corrosion Behavior Science and Technology of Nuclear Installations |
| title | Analysis of the Effect of Applied Load on Crevice Corrosion Behavior |
| title_full | Analysis of the Effect of Applied Load on Crevice Corrosion Behavior |
| title_fullStr | Analysis of the Effect of Applied Load on Crevice Corrosion Behavior |
| title_full_unstemmed | Analysis of the Effect of Applied Load on Crevice Corrosion Behavior |
| title_short | Analysis of the Effect of Applied Load on Crevice Corrosion Behavior |
| title_sort | analysis of the effect of applied load on crevice corrosion behavior |
| url | http://dx.doi.org/10.1155/2023/5897980 |
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