Evolution of Grain Orientation in front of the Pin during FSW of the 6082-T6 Aluminium Alloy
Abstract Friction stir welding (FSW), a new solid-phase connection method, is considered an excellent welding method for aluminium alloys. Grain orientation, grain boundary structure, and texture types in different regions were characterized by a high-resolution electron backscattered diffraction te...
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)
2022-11-01
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| Series: | Materials Research |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392022000100384&tlng=en |
| _version_ | 1811222077995220992 |
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| author | Zhang Liangliang Liu Zhiyuan Chen Xiang |
| author_facet | Zhang Liangliang Liu Zhiyuan Chen Xiang |
| author_sort | Zhang Liangliang |
| collection | DOAJ |
| description | Abstract Friction stir welding (FSW), a new solid-phase connection method, is considered an excellent welding method for aluminium alloys. Grain orientation, grain boundary structure, and texture types in different regions were characterized by a high-resolution electron backscattered diffraction technology. The results revealed that during the welding process, the coarse grains of the base metal are refined, grains in region 1 (600 μm away from the edge of the keyhole) are arranged in a long strip, and the long axis is approximately parallel to the shear direction. The thermal cycle of the welding process causes some grains to recrystallize, further forming a recrystallization (100) [011] rotating-cube texture. The metal in region 2 (100 μm away from the edge of the keyhole) was severely squeezed by the pin, resulting in an increase in the degree of grain breakage in this region, which were mainly equiaxed grains. Due to the eccentric movement of the pin, the (100) [001]-oriented and (110) [001]-oriented grains alternate on the middle layer, forming a banded structure. Plastic deformation and recrystallization occurred in the base metal, within 383 μm in front of the pin, forming a (110) [001] Goss texture and (100) [001] recrystallized cubic texture. |
| first_indexed | 2024-04-12T08:10:28Z |
| format | Article |
| id | doaj.art-b0cf18b2bba94a0ca6d80dd8860f8488 |
| institution | Directory Open Access Journal |
| issn | 1516-1439 |
| language | English |
| last_indexed | 2024-04-12T08:10:28Z |
| publishDate | 2022-11-01 |
| publisher | Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) |
| record_format | Article |
| series | Materials Research |
| spelling | doaj.art-b0cf18b2bba94a0ca6d80dd8860f84882022-12-22T03:41:00ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392022-11-012510.1590/1980-5373-mr-2022-0355Evolution of Grain Orientation in front of the Pin during FSW of the 6082-T6 Aluminium AlloyZhang Lianglianghttps://orcid.org/0000-0001-6635-5187Liu ZhiyuanChen XiangAbstract Friction stir welding (FSW), a new solid-phase connection method, is considered an excellent welding method for aluminium alloys. Grain orientation, grain boundary structure, and texture types in different regions were characterized by a high-resolution electron backscattered diffraction technology. The results revealed that during the welding process, the coarse grains of the base metal are refined, grains in region 1 (600 μm away from the edge of the keyhole) are arranged in a long strip, and the long axis is approximately parallel to the shear direction. The thermal cycle of the welding process causes some grains to recrystallize, further forming a recrystallization (100) [011] rotating-cube texture. The metal in region 2 (100 μm away from the edge of the keyhole) was severely squeezed by the pin, resulting in an increase in the degree of grain breakage in this region, which were mainly equiaxed grains. Due to the eccentric movement of the pin, the (100) [001]-oriented and (110) [001]-oriented grains alternate on the middle layer, forming a banded structure. Plastic deformation and recrystallization occurred in the base metal, within 383 μm in front of the pin, forming a (110) [001] Goss texture and (100) [001] recrystallized cubic texture.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392022000100384&tlng=en6082-T6 aluminium alloyfriction stir weldingcrystal orientation evolutiondynamic recrystallization |
| spellingShingle | Zhang Liangliang Liu Zhiyuan Chen Xiang Evolution of Grain Orientation in front of the Pin during FSW of the 6082-T6 Aluminium Alloy Materials Research 6082-T6 aluminium alloy friction stir welding crystal orientation evolution dynamic recrystallization |
| title | Evolution of Grain Orientation in front of the Pin during FSW of the 6082-T6 Aluminium Alloy |
| title_full | Evolution of Grain Orientation in front of the Pin during FSW of the 6082-T6 Aluminium Alloy |
| title_fullStr | Evolution of Grain Orientation in front of the Pin during FSW of the 6082-T6 Aluminium Alloy |
| title_full_unstemmed | Evolution of Grain Orientation in front of the Pin during FSW of the 6082-T6 Aluminium Alloy |
| title_short | Evolution of Grain Orientation in front of the Pin during FSW of the 6082-T6 Aluminium Alloy |
| title_sort | evolution of grain orientation in front of the pin during fsw of the 6082 t6 aluminium alloy |
| topic | 6082-T6 aluminium alloy friction stir welding crystal orientation evolution dynamic recrystallization |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392022000100384&tlng=en |
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