Tribological and corrosion behavior of Al2O3 interlayer reinforced friction stir welded AA6082-T6 joints
Abstract Friction stir welding (FSW) of thick extruded AA6082-T6 aluminum alloy plates presents challenges in maintaining optimal mechanical and corrosion properties. This study investigated the effects of incorporating Al₂O₃ interlayer reinforcements on the microstructural, tribological, and corros...
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Nature Portfolio
2025-07-01
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| Online Access: | https://doi.org/10.1038/s41598-025-03977-7 |
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| author | Abousoufiane Ouis Mohamed I. A. Habba Mohamed M. Z. Ahmed Waheed S. Barakat |
| author_facet | Abousoufiane Ouis Mohamed I. A. Habba Mohamed M. Z. Ahmed Waheed S. Barakat |
| author_sort | Abousoufiane Ouis |
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| description | Abstract Friction stir welding (FSW) of thick extruded AA6082-T6 aluminum alloy plates presents challenges in maintaining optimal mechanical and corrosion properties. This study investigated the effects of incorporating Al₂O₃ interlayer reinforcements on the microstructural, tribological, and corrosion behaviors of FSW joints. AA6082-T6 plates were friction stir welded with Al₂O₃ interlayer strips at various levels of 0, 4, 8, and 12 vol%. The resulting joints were characterized using optical microscopy, electron microscopy, X-ray diffraction, hardness testing, potentiodynamic polarization, and pin-on-disk wear tests. The Al₂O₃ reinforcement led to grain refinement, increased dislocation density, and enhanced microstrain in the weld zone. The relative density decreased with an increase in the Al₂O₃ content. The Vickers hardness improved systematically across all thicknesses of the reinforced joints, with the highest values observed in the 12 vol% Al₂O₃ specimen. The corrosion resistance of the reinforced joints improved significantly, approaching that of the base material. The wear resistance was enhanced in the reinforced joints with 8 vol% Al₂O₃ specimen consistently showing the highest enhancement ratios under various load conditions. The incorporation of Al₂O₃ interlayer reinforcements effectively mitigated the negative effects of FSW on AA6082-T6 joints, enhancing their microstructural, mechanical, tribological, and corrosion properties. Optimal performance was achieved with 8 vol% Al₂O₃ reinforcement, balancing improvements in hardness, wear resistance, and corrosion behavior. |
| format | Article |
| id | doaj-art-ff1bcfac57b34afe9e8221d0f3197eae |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-07-01 |
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| spelling | doaj-art-ff1bcfac57b34afe9e8221d0f3197eae2025-08-20T04:01:35ZengNature PortfolioScientific Reports2045-23222025-07-0115112010.1038/s41598-025-03977-7Tribological and corrosion behavior of Al2O3 interlayer reinforced friction stir welded AA6082-T6 jointsAbousoufiane Ouis0Mohamed I. A. Habba1Mohamed M. Z. Ahmed2Waheed S. Barakat3Mechanical Engineering Department, College of Engineering at Al-Kharj, Prince Sattam Bin Abdulaziz UniversityMechanical Department, Faculty of Technology and Education, Suez UniversityMechanical Engineering Department, College of Engineering at Al-Kharj, Prince Sattam Bin Abdulaziz UniversityMechanical Department, Faculty of Technology and Education, Suez UniversityAbstract Friction stir welding (FSW) of thick extruded AA6082-T6 aluminum alloy plates presents challenges in maintaining optimal mechanical and corrosion properties. This study investigated the effects of incorporating Al₂O₃ interlayer reinforcements on the microstructural, tribological, and corrosion behaviors of FSW joints. AA6082-T6 plates were friction stir welded with Al₂O₃ interlayer strips at various levels of 0, 4, 8, and 12 vol%. The resulting joints were characterized using optical microscopy, electron microscopy, X-ray diffraction, hardness testing, potentiodynamic polarization, and pin-on-disk wear tests. The Al₂O₃ reinforcement led to grain refinement, increased dislocation density, and enhanced microstrain in the weld zone. The relative density decreased with an increase in the Al₂O₃ content. The Vickers hardness improved systematically across all thicknesses of the reinforced joints, with the highest values observed in the 12 vol% Al₂O₃ specimen. The corrosion resistance of the reinforced joints improved significantly, approaching that of the base material. The wear resistance was enhanced in the reinforced joints with 8 vol% Al₂O₃ specimen consistently showing the highest enhancement ratios under various load conditions. The incorporation of Al₂O₃ interlayer reinforcements effectively mitigated the negative effects of FSW on AA6082-T6 joints, enhancing their microstructural, mechanical, tribological, and corrosion properties. Optimal performance was achieved with 8 vol% Al₂O₃ reinforcement, balancing improvements in hardness, wear resistance, and corrosion behavior.https://doi.org/10.1038/s41598-025-03977-7Friction stir weldingTribologyCorrosionAA6082Alumina reinforcementMetal matrix composites |
| spellingShingle | Abousoufiane Ouis Mohamed I. A. Habba Mohamed M. Z. Ahmed Waheed S. Barakat Tribological and corrosion behavior of Al2O3 interlayer reinforced friction stir welded AA6082-T6 joints Scientific Reports Friction stir welding Tribology Corrosion AA6082 Alumina reinforcement Metal matrix composites |
| title | Tribological and corrosion behavior of Al2O3 interlayer reinforced friction stir welded AA6082-T6 joints |
| title_full | Tribological and corrosion behavior of Al2O3 interlayer reinforced friction stir welded AA6082-T6 joints |
| title_fullStr | Tribological and corrosion behavior of Al2O3 interlayer reinforced friction stir welded AA6082-T6 joints |
| title_full_unstemmed | Tribological and corrosion behavior of Al2O3 interlayer reinforced friction stir welded AA6082-T6 joints |
| title_short | Tribological and corrosion behavior of Al2O3 interlayer reinforced friction stir welded AA6082-T6 joints |
| title_sort | tribological and corrosion behavior of al2o3 interlayer reinforced friction stir welded aa6082 t6 joints |
| topic | Friction stir welding Tribology Corrosion AA6082 Alumina reinforcement Metal matrix composites |
| url | https://doi.org/10.1038/s41598-025-03977-7 |
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