Effect of environmental factors on the corrosion behavior of CoCrNi and CoCrFeMnNi alloys in 3.5 wt% NaCl solution
This study investigates the influence of environmental factors on the corrosion behavior of CoCrNi medium-entropy alloy (MEA) and CoCrFeMnNi high-entropy alloy (HEA) in a 3.5 wt% NaCl solution. The evaluation was conducted through electrochemical testing, immersion experiment, scanning electron micr...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-03-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425002273 |
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| author | Ruizhen Xie Yifan Wei Kunjie Luo Naiming Lin Yuan Yu Peng Cheng Qunfeng Zeng |
| author_facet | Ruizhen Xie Yifan Wei Kunjie Luo Naiming Lin Yuan Yu Peng Cheng Qunfeng Zeng |
| author_sort | Ruizhen Xie |
| collection | DOAJ |
| description | This study investigates the influence of environmental factors on the corrosion behavior of CoCrNi medium-entropy alloy (MEA) and CoCrFeMnNi high-entropy alloy (HEA) in a 3.5 wt% NaCl solution. The evaluation was conducted through electrochemical testing, immersion experiment, scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS) analysis. Polarization curves indicate that both alloys undergo passivation, with CoCrNi exhibiting superior corrosion resistance due to the lower electrochemical activity. In a dynamic environment, the CoCrNi exhibits a lower self-corrosion current density, further confirming its corrosion resistance. Impedance spectroscopy analysis reveals a more robust passivation film on the surface of CoCrNi. Immersion experiments show that the weight change of CoCrNi remains relatively stable in both static and dynamic environments, while the weight change of CoCrFeMnNi varies significantly. Therefore, when selecting corrosion-resistant materials, it is essential to consider the specific operating environment and requirements. |
| format | Article |
| id | doaj-art-4dd01b4a7ab4445f85c3fde328588149 |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-4dd01b4a7ab4445f85c3fde3285881492025-02-06T05:11:55ZengElsevierJournal of Materials Research and Technology2238-78542025-03-013529943007Effect of environmental factors on the corrosion behavior of CoCrNi and CoCrFeMnNi alloys in 3.5 wt% NaCl solutionRuizhen Xie0Yifan Wei1Kunjie Luo2Naiming Lin3Yuan Yu4Peng Cheng5Qunfeng Zeng6Department of Materials Science and Engineering, Jinzhong University, Jinzhong, Shanxi, 030600, ChinaCollege of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, Shanxi, 030024, ChinaSuzhou Nuclear Power Research Institute, Suzhou, Jiangsu, 215004, China; Corresponding author.College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, Shanxi, 030024, China; Corresponding author.State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, Gansu, 730000, ChinaDepartment of Materials Science and Engineering, Jinzhong University, Jinzhong, Shanxi, 030600, ChinaKey Laboratory of Education Ministry for Modern Design and Rotor-Bearing System, Xian Jiaotong University, Xi'an, Shaanxi, 710049, China; Corresponding author.This study investigates the influence of environmental factors on the corrosion behavior of CoCrNi medium-entropy alloy (MEA) and CoCrFeMnNi high-entropy alloy (HEA) in a 3.5 wt% NaCl solution. The evaluation was conducted through electrochemical testing, immersion experiment, scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS) analysis. Polarization curves indicate that both alloys undergo passivation, with CoCrNi exhibiting superior corrosion resistance due to the lower electrochemical activity. In a dynamic environment, the CoCrNi exhibits a lower self-corrosion current density, further confirming its corrosion resistance. Impedance spectroscopy analysis reveals a more robust passivation film on the surface of CoCrNi. Immersion experiments show that the weight change of CoCrNi remains relatively stable in both static and dynamic environments, while the weight change of CoCrFeMnNi varies significantly. Therefore, when selecting corrosion-resistant materials, it is essential to consider the specific operating environment and requirements.http://www.sciencedirect.com/science/article/pii/S2238785425002273Simulated seawaterCrCoNi MEACoCrFeMnNi HEACorrosion behaviorPassivation film |
| spellingShingle | Ruizhen Xie Yifan Wei Kunjie Luo Naiming Lin Yuan Yu Peng Cheng Qunfeng Zeng Effect of environmental factors on the corrosion behavior of CoCrNi and CoCrFeMnNi alloys in 3.5 wt% NaCl solution Journal of Materials Research and Technology Simulated seawater CrCoNi MEA CoCrFeMnNi HEA Corrosion behavior Passivation film |
| title | Effect of environmental factors on the corrosion behavior of CoCrNi and CoCrFeMnNi alloys in 3.5 wt% NaCl solution |
| title_full | Effect of environmental factors on the corrosion behavior of CoCrNi and CoCrFeMnNi alloys in 3.5 wt% NaCl solution |
| title_fullStr | Effect of environmental factors on the corrosion behavior of CoCrNi and CoCrFeMnNi alloys in 3.5 wt% NaCl solution |
| title_full_unstemmed | Effect of environmental factors on the corrosion behavior of CoCrNi and CoCrFeMnNi alloys in 3.5 wt% NaCl solution |
| title_short | Effect of environmental factors on the corrosion behavior of CoCrNi and CoCrFeMnNi alloys in 3.5 wt% NaCl solution |
| title_sort | effect of environmental factors on the corrosion behavior of cocrni and cocrfemnni alloys in 3 5 wt nacl solution |
| topic | Simulated seawater CrCoNi MEA CoCrFeMnNi HEA Corrosion behavior Passivation film |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425002273 |
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