Investigation on Double Wire Metal Inert Gas Welding of A7N01-T4 Aluminum Alloy in High-Speed Welding
Four-millimeter thick A7N01-T4 aluminum alloy plates were welded by double wire metal inert gas welding (DWMW) in high welding speeds, ranging from 1100 to 1250 mm/min. The results show that a sound joint could be obtained at a high speed of 1200 mm/min using DWMW. The weld zone (WZ) in the joint sh...
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| Format: | Article |
| Language: | English |
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De Gruyter
2019-02-01
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| Series: | High Temperature Materials and Processes |
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| Online Access: | https://doi.org/10.1515/htmp-2018-0073 |
| _version_ | 1819026635460968448 |
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| author | Wei Zhicheng Xu Rongzheng Li Hui Hou Yanxi Guo Xuming |
| author_facet | Wei Zhicheng Xu Rongzheng Li Hui Hou Yanxi Guo Xuming |
| author_sort | Wei Zhicheng |
| collection | DOAJ |
| description | Four-millimeter thick A7N01-T4 aluminum alloy plates were welded by double wire metal inert gas welding (DWMW) in high welding speeds, ranging from 1100 to 1250 mm/min. The results show that a sound joint could be obtained at a high speed of 1200 mm/min using DWMW. The weld zone (WZ) in the joint showed a dendritic structure of equiaxed grains, and in the fusion zone (FZ), the microstructure existed as a fine equiaxed crystal structure about 100 µm in thickness. In the WZ adjacent to the FZ, elongated columnar crystal structure distributed along to the interface, and coarse microstructure in the heat affected zone (HAZ) were found, showing a typical rolling texture. The main precipitates in the WZ were assumed to be Fe-enriched phases, and Mg- and Zn-enriched phases. Tensile fracture generally occurred in the WZ adjacent to the FZ with a decrease in ductility, and it was consistent with the results of the microstructure analysis and hardness profile. The mean ultimate tensile strength and elongation of specimens were 302 MPa and 4.5 %, respectively. |
| first_indexed | 2024-12-21T05:29:43Z |
| format | Article |
| id | doaj.art-6f258d1f255241b4b57f5460178a5c85 |
| institution | Directory Open Access Journal |
| issn | 0334-6455 2191-0324 |
| language | English |
| last_indexed | 2024-12-21T05:29:43Z |
| publishDate | 2019-02-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | High Temperature Materials and Processes |
| spelling | doaj.art-6f258d1f255241b4b57f5460178a5c852022-12-21T19:14:34ZengDe GruyterHigh Temperature Materials and Processes0334-64552191-03242019-02-0138201931732510.1515/htmp-2018-0073Investigation on Double Wire Metal Inert Gas Welding of A7N01-T4 Aluminum Alloy in High-Speed WeldingWei Zhicheng0Xu Rongzheng1Li Hui2Hou Yanxi3Guo Xuming4College of Material Science and Engineering, Shenyang Aerospace University, 37 Daoyi South StreetShenyang, 110136ChinaCollege of Material Science and Engineering, Shenyang Aerospace University, 37 Daoyi South StreetShenyang, 110136ChinaCollege of Material Science and Engineering, Shenyang Aerospace University, 37 Daoyi South StreetShenyang, 110136ChinaCollege of Material Science and Engineering, Shenyang Aerospace University, 37 Daoyi South StreetShenyang, 110136ChinaCollege of Material Science and Engineering, Shenyang Aerospace University, 37 Daoyi South StreetShenyang, 110136ChinaFour-millimeter thick A7N01-T4 aluminum alloy plates were welded by double wire metal inert gas welding (DWMW) in high welding speeds, ranging from 1100 to 1250 mm/min. The results show that a sound joint could be obtained at a high speed of 1200 mm/min using DWMW. The weld zone (WZ) in the joint showed a dendritic structure of equiaxed grains, and in the fusion zone (FZ), the microstructure existed as a fine equiaxed crystal structure about 100 µm in thickness. In the WZ adjacent to the FZ, elongated columnar crystal structure distributed along to the interface, and coarse microstructure in the heat affected zone (HAZ) were found, showing a typical rolling texture. The main precipitates in the WZ were assumed to be Fe-enriched phases, and Mg- and Zn-enriched phases. Tensile fracture generally occurred in the WZ adjacent to the FZ with a decrease in ductility, and it was consistent with the results of the microstructure analysis and hardness profile. The mean ultimate tensile strength and elongation of specimens were 302 MPa and 4.5 %, respectively.https://doi.org/10.1515/htmp-2018-0073double wire metal inert gas weldingaluminum alloyshigh-speed welding |
| spellingShingle | Wei Zhicheng Xu Rongzheng Li Hui Hou Yanxi Guo Xuming Investigation on Double Wire Metal Inert Gas Welding of A7N01-T4 Aluminum Alloy in High-Speed Welding High Temperature Materials and Processes double wire metal inert gas welding aluminum alloys high-speed welding |
| title | Investigation on Double Wire Metal Inert Gas Welding of A7N01-T4 Aluminum Alloy in High-Speed Welding |
| title_full | Investigation on Double Wire Metal Inert Gas Welding of A7N01-T4 Aluminum Alloy in High-Speed Welding |
| title_fullStr | Investigation on Double Wire Metal Inert Gas Welding of A7N01-T4 Aluminum Alloy in High-Speed Welding |
| title_full_unstemmed | Investigation on Double Wire Metal Inert Gas Welding of A7N01-T4 Aluminum Alloy in High-Speed Welding |
| title_short | Investigation on Double Wire Metal Inert Gas Welding of A7N01-T4 Aluminum Alloy in High-Speed Welding |
| title_sort | investigation on double wire metal inert gas welding of a7n01 t4 aluminum alloy in high speed welding |
| topic | double wire metal inert gas welding aluminum alloys high-speed welding |
| url | https://doi.org/10.1515/htmp-2018-0073 |
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