Microstructure and mechanical properties of thin-walled TA1 titanium pipes fabricated by high-frequency induction welding
High frequency induction welding (HFIW) was effectively employed for the high-speed fabrication of thin-walled TA1 titanium pipes (TWTPs) with a nominal wall thickness of ∼0.6 mm. The microstructure and mechanical properties of TWTPs manufactured under varying welding parameters were investigated. T...
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Elsevier
2024-11-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S223878542402458X |
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| author | Juying Li Weijie Li ZhiXiong Xie Shijie Dong Jianying Xie Feng Ye Qingsong Mei |
| author_facet | Juying Li Weijie Li ZhiXiong Xie Shijie Dong Jianying Xie Feng Ye Qingsong Mei |
| author_sort | Juying Li |
| collection | DOAJ |
| description | High frequency induction welding (HFIW) was effectively employed for the high-speed fabrication of thin-walled TA1 titanium pipes (TWTPs) with a nominal wall thickness of ∼0.6 mm. The microstructure and mechanical properties of TWTPs manufactured under varying welding parameters were investigated. The weld zone (WZ) exhibits a waist shape measuring ∼622 μm in width, and the width of the heat-affected zone (HAZ) spans between 763 and 864 μm. Both the WZ and HAZ are composed of a mixture of coarse serrated α grains with fine acicular and twins, while the BM retains equiaxed grains. This unique microstructure was resulted from the thermal cycling during HFIW, contributing to a notable increase in microhardness within the WZ compared to both the HAZ and the BM. Optimal manufacturing conditions were identified at a welding power of 14.4 kW, a welding speed of 60 m/min, an opening angle of 6°, and a squeeze displacement of 0.2 mm, yielding the TWIP with a tensile strength of ∼307 MPa and tensile elongation of ∼27%. Tensile fracture analysis revealed that failure predominantly occurred within the BM, underlining a ductile fracture mode characterized by pronounced dimple formations. The enhanced mechanical performance of the weld joints can be attributed to the heterogenous microstructure in the WZ, where the presence of large serrated α-grains enhances ductility, and the fine martensite and twins contribute to the high strength. |
| format | Article |
| id | doaj-art-8ca7ae0a76bb4f68bc035e52f9c6c6b3 |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Elsevier |
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| series | Journal of Materials Research and Technology |
| spelling | doaj-art-8ca7ae0a76bb4f68bc035e52f9c6c6b32024-12-26T08:54:55ZengElsevierJournal of Materials Research and Technology2238-78542024-11-013354485456Microstructure and mechanical properties of thin-walled TA1 titanium pipes fabricated by high-frequency induction weldingJuying Li0Weijie Li1ZhiXiong Xie2Shijie Dong3Jianying Xie4Feng Ye5Qingsong Mei6School of Mechanical Engineering, Wuhan Polytechnic University, Wuhan, 430023, China; Corresponding author.School of Mechanical Engineering, Wuhan Polytechnic University, Wuhan, 430023, ChinaHubei Key Laboratory of Green Light Industrial Materials, Hubei University of Technology, Wuhan, 430068, ChinaSchool of Mechanical Engineering, Wuhan Polytechnic University, Wuhan, 430023, China; Hubei Key Laboratory of Green Light Industrial Materials, Hubei University of Technology, Wuhan, 430068, China; Corresponding author. School of Mechanical Engineering, Wuhan Polytechnic University, Wuhan, 430023, China.Wuhan Bojin New Material Technology Co. Ltd., Wuhan, 430058, ChinaHubei Key Laboratory of Green Light Industrial Materials, Hubei University of Technology, Wuhan, 430068, ChinaSchool of Power and Mechanical Engineering, Wuhan University, Wuhan, 430072, ChinaHigh frequency induction welding (HFIW) was effectively employed for the high-speed fabrication of thin-walled TA1 titanium pipes (TWTPs) with a nominal wall thickness of ∼0.6 mm. The microstructure and mechanical properties of TWTPs manufactured under varying welding parameters were investigated. The weld zone (WZ) exhibits a waist shape measuring ∼622 μm in width, and the width of the heat-affected zone (HAZ) spans between 763 and 864 μm. Both the WZ and HAZ are composed of a mixture of coarse serrated α grains with fine acicular and twins, while the BM retains equiaxed grains. This unique microstructure was resulted from the thermal cycling during HFIW, contributing to a notable increase in microhardness within the WZ compared to both the HAZ and the BM. Optimal manufacturing conditions were identified at a welding power of 14.4 kW, a welding speed of 60 m/min, an opening angle of 6°, and a squeeze displacement of 0.2 mm, yielding the TWIP with a tensile strength of ∼307 MPa and tensile elongation of ∼27%. Tensile fracture analysis revealed that failure predominantly occurred within the BM, underlining a ductile fracture mode characterized by pronounced dimple formations. The enhanced mechanical performance of the weld joints can be attributed to the heterogenous microstructure in the WZ, where the presence of large serrated α-grains enhances ductility, and the fine martensite and twins contribute to the high strength.http://www.sciencedirect.com/science/article/pii/S223878542402458XThin-walled titanium pipesHigh frequency induction weldingMicrostructureMechanical propertyWeld joint |
| spellingShingle | Juying Li Weijie Li ZhiXiong Xie Shijie Dong Jianying Xie Feng Ye Qingsong Mei Microstructure and mechanical properties of thin-walled TA1 titanium pipes fabricated by high-frequency induction welding Journal of Materials Research and Technology Thin-walled titanium pipes High frequency induction welding Microstructure Mechanical property Weld joint |
| title | Microstructure and mechanical properties of thin-walled TA1 titanium pipes fabricated by high-frequency induction welding |
| title_full | Microstructure and mechanical properties of thin-walled TA1 titanium pipes fabricated by high-frequency induction welding |
| title_fullStr | Microstructure and mechanical properties of thin-walled TA1 titanium pipes fabricated by high-frequency induction welding |
| title_full_unstemmed | Microstructure and mechanical properties of thin-walled TA1 titanium pipes fabricated by high-frequency induction welding |
| title_short | Microstructure and mechanical properties of thin-walled TA1 titanium pipes fabricated by high-frequency induction welding |
| title_sort | microstructure and mechanical properties of thin walled ta1 titanium pipes fabricated by high frequency induction welding |
| topic | Thin-walled titanium pipes High frequency induction welding Microstructure Mechanical property Weld joint |
| url | http://www.sciencedirect.com/science/article/pii/S223878542402458X |
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