Effect of Mg interlayer on the microstructure and mechanical performance of resistance rivet welded 2 mm Al and ultra-high strength steel
Resistance rivet welding (RRW) using semi-tubular rivet was employed to join 2 mm thick AA6061 T6 Al alloy and ultra-high strength steel (UHSS). The influence of a Mg interlayer on the evolution of joint microstructure, mechanical performance and fracture characteristics were thoroughly investigated...
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Elsevier
2025-01-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424029211 |
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| author | Luyao Kong Sizhe Niu Ming Lou Zixuan Chen Yunwu Ma Yongbing Li Haiyang Lei |
| author_facet | Luyao Kong Sizhe Niu Ming Lou Zixuan Chen Yunwu Ma Yongbing Li Haiyang Lei |
| author_sort | Luyao Kong |
| collection | DOAJ |
| description | Resistance rivet welding (RRW) using semi-tubular rivet was employed to join 2 mm thick AA6061 T6 Al alloy and ultra-high strength steel (UHSS). The influence of a Mg interlayer on the evolution of joint microstructure, mechanical performance and fracture characteristics were thoroughly investigated. The presence of Mg interlayer has negligible impact on the mixed nugget size; however, it significantly alters the joint microstructure. The nugget microstructure is composed of the mixed ferrite and martensite, and the full martensite structure for the RRW joints without and with a Mg interlayer, respectively. The Mg interlayer utilized in RRW plays a significant role in facilitating the formation of martensite. The solidification mechanism of the mixed nugget without the Mg interlayer is governed by the competition between ferrite and austenite stabilized elements. In contrast, for the mixed nugget with the Mg interlayer, the solidification mechanism is primarily influenced by the austenite stabilized elements. Tensile-shear tests reveal that joints with an Mg interlayer predominantly exhibit a button pull-out fracture (BPF) mode, while joints without the Mg interlayer demonstrate the mixed failure modes, including interfacial fracture and BPF. Furthermore, the influence factors including the mixed nugget size, nugget microstructure and load-bearing capacity of the rivet head were analyzed. |
| format | Article |
| id | doaj-art-7dc3a4562db745ed966f7dd2484186e1 |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-7dc3a4562db745ed966f7dd2484186e12025-01-19T06:25:32ZengElsevierJournal of Materials Research and Technology2238-78542025-01-0134691702Effect of Mg interlayer on the microstructure and mechanical performance of resistance rivet welded 2 mm Al and ultra-high strength steelLuyao Kong0Sizhe Niu1Ming Lou2Zixuan Chen3Yunwu Ma4Yongbing Li5Haiyang Lei6School of Mechanical Engineering, Shandong University of Technology, Zibo, 255000, PR ChinaSchool of Mechanical Engineering, Shandong University of Technology, Zibo, 255000, PR China; Corresponding author.Shanghai Key Laboratory of Digital Manufacture for Thin-walled Structures, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China; State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai, 200240, PR China; Corresponding author. Shanghai Key Laboratory of Digital Manufacture for Thin-walled Structures, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China.Shanghai Key Laboratory of Digital Manufacture for Thin-walled Structures, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China; State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai, 200240, PR ChinaShanghai Key Laboratory of Digital Manufacture for Thin-walled Structures, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China; State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai, 200240, PR ChinaShanghai Key Laboratory of Digital Manufacture for Thin-walled Structures, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China; State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai, 200240, PR ChinaShanghai Smart Fusion Industrial Equipment Co., LTD, Shanghai, 201311, PR ChinaResistance rivet welding (RRW) using semi-tubular rivet was employed to join 2 mm thick AA6061 T6 Al alloy and ultra-high strength steel (UHSS). The influence of a Mg interlayer on the evolution of joint microstructure, mechanical performance and fracture characteristics were thoroughly investigated. The presence of Mg interlayer has negligible impact on the mixed nugget size; however, it significantly alters the joint microstructure. The nugget microstructure is composed of the mixed ferrite and martensite, and the full martensite structure for the RRW joints without and with a Mg interlayer, respectively. The Mg interlayer utilized in RRW plays a significant role in facilitating the formation of martensite. The solidification mechanism of the mixed nugget without the Mg interlayer is governed by the competition between ferrite and austenite stabilized elements. In contrast, for the mixed nugget with the Mg interlayer, the solidification mechanism is primarily influenced by the austenite stabilized elements. Tensile-shear tests reveal that joints with an Mg interlayer predominantly exhibit a button pull-out fracture (BPF) mode, while joints without the Mg interlayer demonstrate the mixed failure modes, including interfacial fracture and BPF. Furthermore, the influence factors including the mixed nugget size, nugget microstructure and load-bearing capacity of the rivet head were analyzed.http://www.sciencedirect.com/science/article/pii/S2238785424029211Resistance rivet weldingAl/UHSSMg interlayerSolidification mechanismMechanical performance |
| spellingShingle | Luyao Kong Sizhe Niu Ming Lou Zixuan Chen Yunwu Ma Yongbing Li Haiyang Lei Effect of Mg interlayer on the microstructure and mechanical performance of resistance rivet welded 2 mm Al and ultra-high strength steel Journal of Materials Research and Technology Resistance rivet welding Al/UHSS Mg interlayer Solidification mechanism Mechanical performance |
| title | Effect of Mg interlayer on the microstructure and mechanical performance of resistance rivet welded 2 mm Al and ultra-high strength steel |
| title_full | Effect of Mg interlayer on the microstructure and mechanical performance of resistance rivet welded 2 mm Al and ultra-high strength steel |
| title_fullStr | Effect of Mg interlayer on the microstructure and mechanical performance of resistance rivet welded 2 mm Al and ultra-high strength steel |
| title_full_unstemmed | Effect of Mg interlayer on the microstructure and mechanical performance of resistance rivet welded 2 mm Al and ultra-high strength steel |
| title_short | Effect of Mg interlayer on the microstructure and mechanical performance of resistance rivet welded 2 mm Al and ultra-high strength steel |
| title_sort | effect of mg interlayer on the microstructure and mechanical performance of resistance rivet welded 2 mm al and ultra high strength steel |
| topic | Resistance rivet welding Al/UHSS Mg interlayer Solidification mechanism Mechanical performance |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424029211 |
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