Numerical investigation of the impact of thermoelectric effect on electron beam welding of dissimilar materials
Electron beam welding of GH4169 and Ni is required in the manufacture of the regenerative cooling system of the liquid rocket motor. The thermoelectric effect is observed during the welding of dissimilar metals; however, there has been a lack of investigation into the influence of this effect on ele...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-11-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423027862 |
| _version_ | 1797301448682242048 |
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| author | Xiaobing Wang Houqin Wang Jincan Ma Binggang Zhang |
| author_facet | Xiaobing Wang Houqin Wang Jincan Ma Binggang Zhang |
| author_sort | Xiaobing Wang |
| collection | DOAJ |
| description | Electron beam welding of GH4169 and Ni is required in the manufacture of the regenerative cooling system of the liquid rocket motor. The thermoelectric effect is observed during the welding of dissimilar metals; however, there has been a lack of investigation into the influence of this effect on electron beam welding joint formation and its dependence on test plate thickness. The thermoelectric effect of electron beam welding between GH4169 and Ni with varying thicknesses, as well as the influence of induced magnetic fields on electron beam trajectories, are investigated through the establishment of a numerical model incorporating thermal-electric-magnetic coupling.The results show that when the test plate increases from 2.5 mm to 10 mm the peak current density increases from 5.1 × 106 A/m2 to 7.6 × 106 A/m2, and the maximum magnetic flux density increases from 1.49× 10−2 T to 1.77 × 10−2 T. The increase in magnetic flux density results in a greater displacement of the electron beam spot away from the interface between the two materials, thereby causing incomplete fusion defects in the joints. This study elucidates the fundamental physical principles underlying the occurrence of incomplete fusion defects in electron beam welding joints, thereby furnishing essential theoretical underpinnings for enhancing the quality of dissimilar metal electron beam weld joints. |
| first_indexed | 2024-03-07T23:22:43Z |
| format | Article |
| id | doaj.art-5128d794dbf349c9bebf2cad7e985610 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-07T23:22:43Z |
| publishDate | 2023-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-5128d794dbf349c9bebf2cad7e9856102024-02-21T05:27:27ZengElsevierJournal of Materials Research and Technology2238-78542023-11-012753155320Numerical investigation of the impact of thermoelectric effect on electron beam welding of dissimilar materialsXiaobing Wang0Houqin Wang1Jincan Ma2Binggang Zhang3State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin, 150001, ChinaCorresponding author.; State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin, 150001, ChinaState Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin, 150001, ChinaCorresponding author.; State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin, 150001, ChinaElectron beam welding of GH4169 and Ni is required in the manufacture of the regenerative cooling system of the liquid rocket motor. The thermoelectric effect is observed during the welding of dissimilar metals; however, there has been a lack of investigation into the influence of this effect on electron beam welding joint formation and its dependence on test plate thickness. The thermoelectric effect of electron beam welding between GH4169 and Ni with varying thicknesses, as well as the influence of induced magnetic fields on electron beam trajectories, are investigated through the establishment of a numerical model incorporating thermal-electric-magnetic coupling.The results show that when the test plate increases from 2.5 mm to 10 mm the peak current density increases from 5.1 × 106 A/m2 to 7.6 × 106 A/m2, and the maximum magnetic flux density increases from 1.49× 10−2 T to 1.77 × 10−2 T. The increase in magnetic flux density results in a greater displacement of the electron beam spot away from the interface between the two materials, thereby causing incomplete fusion defects in the joints. This study elucidates the fundamental physical principles underlying the occurrence of incomplete fusion defects in electron beam welding joints, thereby furnishing essential theoretical underpinnings for enhancing the quality of dissimilar metal electron beam weld joints.http://www.sciencedirect.com/science/article/pii/S2238785423027862Electron beam weldingGH4169NiThermoelectric effectMagnetic field |
| spellingShingle | Xiaobing Wang Houqin Wang Jincan Ma Binggang Zhang Numerical investigation of the impact of thermoelectric effect on electron beam welding of dissimilar materials Journal of Materials Research and Technology Electron beam welding GH4169 Ni Thermoelectric effect Magnetic field |
| title | Numerical investigation of the impact of thermoelectric effect on electron beam welding of dissimilar materials |
| title_full | Numerical investigation of the impact of thermoelectric effect on electron beam welding of dissimilar materials |
| title_fullStr | Numerical investigation of the impact of thermoelectric effect on electron beam welding of dissimilar materials |
| title_full_unstemmed | Numerical investigation of the impact of thermoelectric effect on electron beam welding of dissimilar materials |
| title_short | Numerical investigation of the impact of thermoelectric effect on electron beam welding of dissimilar materials |
| title_sort | numerical investigation of the impact of thermoelectric effect on electron beam welding of dissimilar materials |
| topic | Electron beam welding GH4169 Ni Thermoelectric effect Magnetic field |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423027862 |
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