Effect of tool travel speed on tensile strength of friction stir welded dissimilar joint of aluminium AA6061 T6 alloy and maraging M250 steel
Friction stir welding (FSW) is a promising welding method to produce dissimilar joints between steel and aluminium. The formation of the intermetallic compound layer at the dissimilar joint interface affects the joint mechanical properties, which are also influenced by the FSW process parameters. In...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2021-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/abde57 |
| _version_ | 1797746669943521280 |
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| author | M Karthikeyan Jonah |
| author_facet | M Karthikeyan Jonah |
| author_sort | M Karthikeyan |
| collection | DOAJ |
| description | Friction stir welding (FSW) is a promising welding method to produce dissimilar joints between steel and aluminium. The formation of the intermetallic compound layer at the dissimilar joint interface affects the joint mechanical properties, which are also influenced by the FSW process parameters. In the present research work, M250 Maraging steel and AA6061 T6 aluminium alloy were joined by FSW. The joints were prepared with five different tool travel speeds ranging from 0.33 mm s ^−1 to 1 mm s ^−1 using a tapered tool pin made by tungsten carbide material, keeping tool rotational speed constant. The welded joints were analyzed for their tensile behaviour and microstructural change, including hardness measurement. The failed samples are analyzed using a scanning electron microscopy device for their mode of failure. In the Energy Dispersive X-Ray Spectroscopy (EDS) analysis, the formation of intermetallic compound (IMC) layers of Fe _3 Al, Fe _4 Al _13, and Fe _2 Al _5 are observed. When the thickness of the IMC layer increases, the joint strength decreases. It is found that the welding speed influences the thickness of the IMC layer formed, causing variation in the strength of the dissimilar joint. Better joint efficiency is obtained at a tool travel speed of 0.67 mm s ^−1 . |
| first_indexed | 2024-03-12T15:41:12Z |
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| id | doaj.art-68da640ce0f8411c8379bffebe15074b |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:41:12Z |
| publishDate | 2021-01-01 |
| publisher | IOP Publishing |
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| spelling | doaj.art-68da640ce0f8411c8379bffebe15074b2023-08-09T15:58:48ZengIOP PublishingMaterials Research Express2053-15912021-01-018202650210.1088/2053-1591/abde57Effect of tool travel speed on tensile strength of friction stir welded dissimilar joint of aluminium AA6061 T6 alloy and maraging M250 steelM Karthikeyan0https://orcid.org/0000-0002-1769-7532Jonah1Department of Mechanical Engineering, Coimbatore Institute of Technology, Coimbatore 641014, Tamil Nadu, IndiaDepartment of Robotics and Automation, PSG College of Technology, Coimbatore 641004, Tamil Nadu, IndiaFriction stir welding (FSW) is a promising welding method to produce dissimilar joints between steel and aluminium. The formation of the intermetallic compound layer at the dissimilar joint interface affects the joint mechanical properties, which are also influenced by the FSW process parameters. In the present research work, M250 Maraging steel and AA6061 T6 aluminium alloy were joined by FSW. The joints were prepared with five different tool travel speeds ranging from 0.33 mm s ^−1 to 1 mm s ^−1 using a tapered tool pin made by tungsten carbide material, keeping tool rotational speed constant. The welded joints were analyzed for their tensile behaviour and microstructural change, including hardness measurement. The failed samples are analyzed using a scanning electron microscopy device for their mode of failure. In the Energy Dispersive X-Ray Spectroscopy (EDS) analysis, the formation of intermetallic compound (IMC) layers of Fe _3 Al, Fe _4 Al _13, and Fe _2 Al _5 are observed. When the thickness of the IMC layer increases, the joint strength decreases. It is found that the welding speed influences the thickness of the IMC layer formed, causing variation in the strength of the dissimilar joint. Better joint efficiency is obtained at a tool travel speed of 0.67 mm s ^−1 .https://doi.org/10.1088/2053-1591/abde57FSWsolid-state joiningIMC layertensile propertiesM250 steelAA6061 Al alloy |
| spellingShingle | M Karthikeyan Jonah Effect of tool travel speed on tensile strength of friction stir welded dissimilar joint of aluminium AA6061 T6 alloy and maraging M250 steel Materials Research Express FSW solid-state joining IMC layer tensile properties M250 steel AA6061 Al alloy |
| title | Effect of tool travel speed on tensile strength of friction stir welded dissimilar joint of aluminium AA6061 T6 alloy and maraging M250 steel |
| title_full | Effect of tool travel speed on tensile strength of friction stir welded dissimilar joint of aluminium AA6061 T6 alloy and maraging M250 steel |
| title_fullStr | Effect of tool travel speed on tensile strength of friction stir welded dissimilar joint of aluminium AA6061 T6 alloy and maraging M250 steel |
| title_full_unstemmed | Effect of tool travel speed on tensile strength of friction stir welded dissimilar joint of aluminium AA6061 T6 alloy and maraging M250 steel |
| title_short | Effect of tool travel speed on tensile strength of friction stir welded dissimilar joint of aluminium AA6061 T6 alloy and maraging M250 steel |
| title_sort | effect of tool travel speed on tensile strength of friction stir welded dissimilar joint of aluminium aa6061 t6 alloy and maraging m250 steel |
| topic | FSW solid-state joining IMC layer tensile properties M250 steel AA6061 Al alloy |
| url | https://doi.org/10.1088/2053-1591/abde57 |
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