Corrosion studies, parameter effects, and surface morphology of AA5052-AA6101T6 friction stir welded joints
Traditional fusion welding is unsuitable for welding aluminum alloys because secondary brittle phases, porosity, and cracks are likely to form as the alloy solidifies. Friction stir welding (FRSTW), a new solid-state welding method, can join similar or dissimilar aluminium (ALU) alloys. In this stud...
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Serbian Chemical Society
2025-01-01
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| Series: | Journal of the Serbian Chemical Society |
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| Online Access: | https://doiserbia.nb.rs/img/doi/0352-5139/2025/0352-51392400078R.pdf |
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| author | Rengarajan Sathish Kasirajan G. Ashok Kumar R. |
| author_facet | Rengarajan Sathish Kasirajan G. Ashok Kumar R. |
| author_sort | Rengarajan Sathish |
| collection | DOAJ |
| description | Traditional fusion welding is unsuitable for welding aluminum alloys because secondary brittle phases, porosity, and cracks are likely to form as the alloy solidifies. Friction stir welding (FRSTW), a new solid-state welding method, can join similar or dissimilar aluminium (ALU) alloys. In this study friction stir welded AA5052-AA6101T6 alloy samples were tested for corrosion characteristics. The microstructure and mechanical behavior of FRSW- -welded AA5052-AA6101T6 ALU alloy joints were examined relative to input parameters. Microstructure reveals that welding speed and rotation-speed affect the weld microstructure analyzed sample welded areas. Twenty-nine samples were corrosion tested in 3.5 % NaCl, household water (880 ppm – SPM), 1 M H2SO4, 1 M NaOH and natural seawater for 72 h. Domestic salt water and acid medium showed better resistance to corrosion than alkaline and salt media. Impedance studies demonstrated slight anodic and cathodic potential changes after friction stir welding. |
| format | Article |
| id | doaj-art-8fdf2718a81f46bea2eaf031e97c218f |
| institution | OA Journals |
| issn | 0352-5139 1820-7421 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Serbian Chemical Society |
| record_format | Article |
| series | Journal of the Serbian Chemical Society |
| spelling | doaj-art-8fdf2718a81f46bea2eaf031e97c218f2025-08-20T02:29:59ZengSerbian Chemical SocietyJournal of the Serbian Chemical Society0352-51391820-74212025-01-0190335136710.2298/JSC240417078R0352-51392400078RCorrosion studies, parameter effects, and surface morphology of AA5052-AA6101T6 friction stir welded jointsRengarajan Sathish0https://orcid.org/0000-0001-6971-0412Kasirajan G.1https://orcid.org/0000-0001-9203-0917Ashok Kumar R.2https://orcid.org/0000-0001-7311-1180Department of Mechanical Engineering, St. Joseph’s College of Engineering, Semmancheri, Chennai, Tamil Nadu, IndiaResearch Scholar, Department of Mechanical Engineering, St. Joseph’s College of Engineering, Semmancheri, Chennai, Tamil Nadu, IndiaDepartment of Mechanical Engineering, SRM Madurai College for Engineering and Technology, Nedungulam Main Rd, Pottapalayam, Tamil Nadu, IndiaTraditional fusion welding is unsuitable for welding aluminum alloys because secondary brittle phases, porosity, and cracks are likely to form as the alloy solidifies. Friction stir welding (FRSTW), a new solid-state welding method, can join similar or dissimilar aluminium (ALU) alloys. In this study friction stir welded AA5052-AA6101T6 alloy samples were tested for corrosion characteristics. The microstructure and mechanical behavior of FRSW- -welded AA5052-AA6101T6 ALU alloy joints were examined relative to input parameters. Microstructure reveals that welding speed and rotation-speed affect the weld microstructure analyzed sample welded areas. Twenty-nine samples were corrosion tested in 3.5 % NaCl, household water (880 ppm – SPM), 1 M H2SO4, 1 M NaOH and natural seawater for 72 h. Domestic salt water and acid medium showed better resistance to corrosion than alkaline and salt media. Impedance studies demonstrated slight anodic and cathodic potential changes after friction stir welding.https://doiserbia.nb.rs/img/doi/0352-5139/2025/0352-51392400078R.pdfmicrostructurealuminum alloysimpedance studyweight loss method |
| spellingShingle | Rengarajan Sathish Kasirajan G. Ashok Kumar R. Corrosion studies, parameter effects, and surface morphology of AA5052-AA6101T6 friction stir welded joints Journal of the Serbian Chemical Society microstructure aluminum alloys impedance study weight loss method |
| title | Corrosion studies, parameter effects, and surface morphology of AA5052-AA6101T6 friction stir welded joints |
| title_full | Corrosion studies, parameter effects, and surface morphology of AA5052-AA6101T6 friction stir welded joints |
| title_fullStr | Corrosion studies, parameter effects, and surface morphology of AA5052-AA6101T6 friction stir welded joints |
| title_full_unstemmed | Corrosion studies, parameter effects, and surface morphology of AA5052-AA6101T6 friction stir welded joints |
| title_short | Corrosion studies, parameter effects, and surface morphology of AA5052-AA6101T6 friction stir welded joints |
| title_sort | corrosion studies parameter effects and surface morphology of aa5052 aa6101t6 friction stir welded joints |
| topic | microstructure aluminum alloys impedance study weight loss method |
| url | https://doiserbia.nb.rs/img/doi/0352-5139/2025/0352-51392400078R.pdf |
| work_keys_str_mv | AT rengarajansathish corrosionstudiesparametereffectsandsurfacemorphologyofaa5052aa6101t6frictionstirweldedjoints AT kasirajang corrosionstudiesparametereffectsandsurfacemorphologyofaa5052aa6101t6frictionstirweldedjoints AT ashokkumarr corrosionstudiesparametereffectsandsurfacemorphologyofaa5052aa6101t6frictionstirweldedjoints |