Analysis of residual stresses in electron beam welding with filler wire of Ti62A alloy
Residual stress significantly affects the performance of the welded joints and the tensile residual stress easily leads to the joint fracture and failure. A three dimensional nonlinear transient thermo-mechanically coupled finite element model of Ti62A alloy electron beam welding (EBW) with filler w...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-03-01
|
| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423000819 |
| _version_ | 1797858845979049984 |
|---|---|
| author | Bin Wang Li Zhou Jigong Du Yunshuo Cao |
| author_facet | Bin Wang Li Zhou Jigong Du Yunshuo Cao |
| author_sort | Bin Wang |
| collection | DOAJ |
| description | Residual stress significantly affects the performance of the welded joints and the tensile residual stress easily leads to the joint fracture and failure. A three dimensional nonlinear transient thermo-mechanically coupled finite element model of Ti62A alloy electron beam welding (EBW) with filler wire was established. The influence of the welding parameters, such as welding power, groove angles and number of welding layers on the temperature and residual stress evolutions was predicted and verified against existing literature data. The calculated results indicate that the high tensile stress of heat affected zone is very likely to induce the failure of the welded joints. When the welding power is 2600 W, the longitudinal residual stress along the welding direction is more symmetrical on both sides, and the force and deformation of the weldment will be more uniform. As the groove angle decreases, the transverse residual compressive stress on the joint surface becomes larger, which results in the low risk for cracking tendency of the joint. Increasing the number of welding layers reduces the weld reinforcement and the residual stress. In addition, the decline magnitude of residual stress decreases with the increase in the number of welding layers. Both the smaller groove angle and the multi-layer welding can effectively reduce the residual stress of weldments and improve the joint performance. The findings of this study will provide a good theoretical basis for optimizing welding process. |
| first_indexed | 2024-04-09T21:19:56Z |
| format | Article |
| id | doaj.art-dffb98bb5caf4104b508a24e26f675fc |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-09T21:19:56Z |
| publishDate | 2023-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-dffb98bb5caf4104b508a24e26f675fc2023-03-28T06:46:03ZengElsevierJournal of Materials Research and Technology2238-78542023-03-0123985997Analysis of residual stresses in electron beam welding with filler wire of Ti62A alloyBin Wang0Li Zhou1Jigong Du2Yunshuo Cao3School of Electromechanical and Automotive Engineering, Yantai University, Yantai, 264005, ChinaCorresponding author.; School of Electromechanical and Automotive Engineering, Yantai University, Yantai, 264005, ChinaSchool of Electromechanical and Automotive Engineering, Yantai University, Yantai, 264005, ChinaSchool of Electromechanical and Automotive Engineering, Yantai University, Yantai, 264005, ChinaResidual stress significantly affects the performance of the welded joints and the tensile residual stress easily leads to the joint fracture and failure. A three dimensional nonlinear transient thermo-mechanically coupled finite element model of Ti62A alloy electron beam welding (EBW) with filler wire was established. The influence of the welding parameters, such as welding power, groove angles and number of welding layers on the temperature and residual stress evolutions was predicted and verified against existing literature data. The calculated results indicate that the high tensile stress of heat affected zone is very likely to induce the failure of the welded joints. When the welding power is 2600 W, the longitudinal residual stress along the welding direction is more symmetrical on both sides, and the force and deformation of the weldment will be more uniform. As the groove angle decreases, the transverse residual compressive stress on the joint surface becomes larger, which results in the low risk for cracking tendency of the joint. Increasing the number of welding layers reduces the weld reinforcement and the residual stress. In addition, the decline magnitude of residual stress decreases with the increase in the number of welding layers. Both the smaller groove angle and the multi-layer welding can effectively reduce the residual stress of weldments and improve the joint performance. The findings of this study will provide a good theoretical basis for optimizing welding process.http://www.sciencedirect.com/science/article/pii/S2238785423000819Ti62A alloyResidual stressElectron beam weldingFiller wireNumerical simulation |
| spellingShingle | Bin Wang Li Zhou Jigong Du Yunshuo Cao Analysis of residual stresses in electron beam welding with filler wire of Ti62A alloy Journal of Materials Research and Technology Ti62A alloy Residual stress Electron beam welding Filler wire Numerical simulation |
| title | Analysis of residual stresses in electron beam welding with filler wire of Ti62A alloy |
| title_full | Analysis of residual stresses in electron beam welding with filler wire of Ti62A alloy |
| title_fullStr | Analysis of residual stresses in electron beam welding with filler wire of Ti62A alloy |
| title_full_unstemmed | Analysis of residual stresses in electron beam welding with filler wire of Ti62A alloy |
| title_short | Analysis of residual stresses in electron beam welding with filler wire of Ti62A alloy |
| title_sort | analysis of residual stresses in electron beam welding with filler wire of ti62a alloy |
| topic | Ti62A alloy Residual stress Electron beam welding Filler wire Numerical simulation |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423000819 |
| work_keys_str_mv | AT binwang analysisofresidualstressesinelectronbeamweldingwithfillerwireofti62aalloy AT lizhou analysisofresidualstressesinelectronbeamweldingwithfillerwireofti62aalloy AT jigongdu analysisofresidualstressesinelectronbeamweldingwithfillerwireofti62aalloy AT yunshuocao analysisofresidualstressesinelectronbeamweldingwithfillerwireofti62aalloy |