The effect of surface roughness on the formation of passivation layer on the A356 aluminum alloy
Aluminum alloys are widely used in the automotive and aerospace industries due to their excellent strength-to-weight ratio, corrosion resistance, and workability. This study investigated the influence of surface roughness on the formation, composition, and adhesion of zirconium-based passivation lay...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-09-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425020927 |
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| author | Jiawei Li Dongzhu Lu Quantong Jiang Wenke Gao Chaoqun Li Qichao Zhang Yishan Jiang Yanliang Huang Baorong Hou |
| author_facet | Jiawei Li Dongzhu Lu Quantong Jiang Wenke Gao Chaoqun Li Qichao Zhang Yishan Jiang Yanliang Huang Baorong Hou |
| author_sort | Jiawei Li |
| collection | DOAJ |
| description | Aluminum alloys are widely used in the automotive and aerospace industries due to their excellent strength-to-weight ratio, corrosion resistance, and workability. This study investigated the influence of surface roughness on the formation, composition, and adhesion of zirconium-based passivation layers on A356 aluminum alloy. Surface roughness was characterized using 3D laser confocal microscopy, and its correlation with passivation layer thickness, uniformity, and corrosion resistance was systematically analyzed. The passivation layers were characterized using SEM, TEM, XRD, and XPS, and their electrochemical performance was evaluated in a 3.5 % NaCl solution. The results revealed that surface roughness affects the thickness and adhesion of the passivation layer; meanwhile, excessive roughness introduced defects and discontinuities. These findings provided new insights into the microstructural mechanisms underlying passivation layer formation and highlighted the critical role of surface treatment in optimizing corrosion resistance. |
| format | Article |
| id | doaj-art-b4e39f4efed144e684bb5a0c84756b4f |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-b4e39f4efed144e684bb5a0c84756b4f2025-08-24T05:12:51ZengElsevierJournal of Materials Research and Technology2238-78542025-09-01383100311310.1016/j.jmrt.2025.08.136The effect of surface roughness on the formation of passivation layer on the A356 aluminum alloyJiawei Li0Dongzhu Lu1Quantong Jiang2Wenke Gao3Chaoqun Li4Qichao Zhang5Yishan Jiang6Yanliang Huang7Baorong Hou8State Key Laboratory of Advanced Marine Materials, Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266000, ChinaState Key Laboratory of Advanced Marine Materials, Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266000, China; Qingdao Marine and Technology Center, Qingdao, 266200, China; Guangxi Key Laboratory of Marine Environmental Science, Guangxi Academy of Sciences, Nanning, 530007, China; Corresponding author. State Key Laboratory of Advanced Marine Materials, Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266000, China.State Key Laboratory of Advanced Marine Materials, Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266000, ChinaState Key Laboratory of Advanced Marine Materials, Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266000, China; Qingdao Innovation and Development Base, Harbin Engineering University, Qingdao, 266000, ChinaState Key Laboratory of Advanced Marine Materials, Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266000, ChinaNavy Submarine Academy, Qingdao, 260199, China; Corresponding author.Navy Submarine Academy, Qingdao, 260199, ChinaState Key Laboratory of Advanced Marine Materials, Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266000, ChinaState Key Laboratory of Advanced Marine Materials, Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266000, ChinaAluminum alloys are widely used in the automotive and aerospace industries due to their excellent strength-to-weight ratio, corrosion resistance, and workability. This study investigated the influence of surface roughness on the formation, composition, and adhesion of zirconium-based passivation layers on A356 aluminum alloy. Surface roughness was characterized using 3D laser confocal microscopy, and its correlation with passivation layer thickness, uniformity, and corrosion resistance was systematically analyzed. The passivation layers were characterized using SEM, TEM, XRD, and XPS, and their electrochemical performance was evaluated in a 3.5 % NaCl solution. The results revealed that surface roughness affects the thickness and adhesion of the passivation layer; meanwhile, excessive roughness introduced defects and discontinuities. These findings provided new insights into the microstructural mechanisms underlying passivation layer formation and highlighted the critical role of surface treatment in optimizing corrosion resistance.http://www.sciencedirect.com/science/article/pii/S2238785425020927Aluminum alloyPassivation layerSurface roughnessCorrosionProtection |
| spellingShingle | Jiawei Li Dongzhu Lu Quantong Jiang Wenke Gao Chaoqun Li Qichao Zhang Yishan Jiang Yanliang Huang Baorong Hou The effect of surface roughness on the formation of passivation layer on the A356 aluminum alloy Journal of Materials Research and Technology Aluminum alloy Passivation layer Surface roughness Corrosion Protection |
| title | The effect of surface roughness on the formation of passivation layer on the A356 aluminum alloy |
| title_full | The effect of surface roughness on the formation of passivation layer on the A356 aluminum alloy |
| title_fullStr | The effect of surface roughness on the formation of passivation layer on the A356 aluminum alloy |
| title_full_unstemmed | The effect of surface roughness on the formation of passivation layer on the A356 aluminum alloy |
| title_short | The effect of surface roughness on the formation of passivation layer on the A356 aluminum alloy |
| title_sort | effect of surface roughness on the formation of passivation layer on the a356 aluminum alloy |
| topic | Aluminum alloy Passivation layer Surface roughness Corrosion Protection |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425020927 |
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