The annealing microstructural evolution of Al-10Zn alloy prepared by continuous extrusion of mixed heterogeneous elemental powders
Al and Zn powders in the ratio of 9:1 (wt%) were alloyed into rods with a dense structure by using the continuous extrusion technique. To promote metallurgical bonding of heterogeneous elements, the microstructures of these rods with different holding times (1, 3, and 5 min) at the same annealing te...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2022-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/ac7708 |
| _version_ | 1797746426670743552 |
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| author | Guojian Lin Zhengwei Guo Lu Li Yugeng Li Yanhua Sun Yuzhang Li Jia Wang |
| author_facet | Guojian Lin Zhengwei Guo Lu Li Yugeng Li Yanhua Sun Yuzhang Li Jia Wang |
| author_sort | Guojian Lin |
| collection | DOAJ |
| description | Al and Zn powders in the ratio of 9:1 (wt%) were alloyed into rods with a dense structure by using the continuous extrusion technique. To promote metallurgical bonding of heterogeneous elements, the microstructures of these rods with different holding times (1, 3, and 5 min) at the same annealing temperature were investigated. With the increase of annealing time, the microstructure consisted mainly of ( α -Al) and ( α + η ) phases and an ( α + η )-rich phase. The solid solubility of Zn into Al also gradually increased. The calculated x-ray diffraction (XRD) data showed that the lattice parameter of Al decreased to 4.04793 Å after 5 min of annealing, which was decreased by 0.062% compared to the lattice parameter of Al in the powder state. The microscopic stress and dislocation density of Al were increased by 0.27% and 12.52 × 10 ^14 m ^−2 respectively after extrusion, and the microscopic deformation and dislocation density were decreased to 0.2% and 8.71 × 10 ^14 m ^−2 respectively after being annealed for 5 min. The dislocation density and lattice distortion after annealing gradually decreased with increasing annealing time, and the scanning electron microscopy (SEM) results indicated that the mass percentage of Zn increased with increasing annealing time. |
| first_indexed | 2024-03-12T15:36:39Z |
| format | Article |
| id | doaj.art-bae709f6bdc042ababa7da532d8aacfb |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:36:39Z |
| publishDate | 2022-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-bae709f6bdc042ababa7da532d8aacfb2023-08-09T16:12:23ZengIOP PublishingMaterials Research Express2053-15912022-01-019606650810.1088/2053-1591/ac7708The annealing microstructural evolution of Al-10Zn alloy prepared by continuous extrusion of mixed heterogeneous elemental powdersGuojian Lin0https://orcid.org/0000-0002-9170-4155Zhengwei Guo1Lu Li2Yugeng Li3Yanhua Sun4Yuzhang Li5Jia Wang6Faculty of Materials Science and Engineering, Kunming University of Science and Technology , Kunming, People’s Republic of China; Joint Laboratory of Titanium Forming Key Technology, Kunming, People’s Republic of ChinaFaculty of Materials Science and Engineering, Kunming University of Science and Technology , Kunming, People’s Republic of China; Joint Laboratory of Titanium Forming Key Technology, Kunming, People’s Republic of ChinaFaculty of Materials Science and Engineering, Kunming University of Science and Technology , Kunming, People’s Republic of China; Research Center for Analysis and Measurement, Kunming University of Science and Technology , Kunming, People’s Republic of ChinaFaculty of Materials Science and Engineering, Kunming University of Science and Technology , Kunming, People’s Republic of China; Kunming Metallurgical Research Institute Co., Ltd, Kunming, People’s Republic of ChinaKunming Metallurgical Research Institute Co., Ltd, Kunming, People’s Republic of ChinaKunming Metallurgical Research Institute Co., Ltd, Kunming, People’s Republic of ChinaCollege of Mechanical Engineering, Sichuan University of Science and Engineering , Zigong, People’s Republic of ChinaAl and Zn powders in the ratio of 9:1 (wt%) were alloyed into rods with a dense structure by using the continuous extrusion technique. To promote metallurgical bonding of heterogeneous elements, the microstructures of these rods with different holding times (1, 3, and 5 min) at the same annealing temperature were investigated. With the increase of annealing time, the microstructure consisted mainly of ( α -Al) and ( α + η ) phases and an ( α + η )-rich phase. The solid solubility of Zn into Al also gradually increased. The calculated x-ray diffraction (XRD) data showed that the lattice parameter of Al decreased to 4.04793 Å after 5 min of annealing, which was decreased by 0.062% compared to the lattice parameter of Al in the powder state. The microscopic stress and dislocation density of Al were increased by 0.27% and 12.52 × 10 ^14 m ^−2 respectively after extrusion, and the microscopic deformation and dislocation density were decreased to 0.2% and 8.71 × 10 ^14 m ^−2 respectively after being annealed for 5 min. The dislocation density and lattice distortion after annealing gradually decreased with increasing annealing time, and the scanning electron microscopy (SEM) results indicated that the mass percentage of Zn increased with increasing annealing time.https://doi.org/10.1088/2053-1591/ac7708continuous extrusionheterogeneous elemental powderselement diffusiondislocation densitymicrostructural evolution |
| spellingShingle | Guojian Lin Zhengwei Guo Lu Li Yugeng Li Yanhua Sun Yuzhang Li Jia Wang The annealing microstructural evolution of Al-10Zn alloy prepared by continuous extrusion of mixed heterogeneous elemental powders Materials Research Express continuous extrusion heterogeneous elemental powders element diffusion dislocation density microstructural evolution |
| title | The annealing microstructural evolution of Al-10Zn alloy prepared by continuous extrusion of mixed heterogeneous elemental powders |
| title_full | The annealing microstructural evolution of Al-10Zn alloy prepared by continuous extrusion of mixed heterogeneous elemental powders |
| title_fullStr | The annealing microstructural evolution of Al-10Zn alloy prepared by continuous extrusion of mixed heterogeneous elemental powders |
| title_full_unstemmed | The annealing microstructural evolution of Al-10Zn alloy prepared by continuous extrusion of mixed heterogeneous elemental powders |
| title_short | The annealing microstructural evolution of Al-10Zn alloy prepared by continuous extrusion of mixed heterogeneous elemental powders |
| title_sort | annealing microstructural evolution of al 10zn alloy prepared by continuous extrusion of mixed heterogeneous elemental powders |
| topic | continuous extrusion heterogeneous elemental powders element diffusion dislocation density microstructural evolution |
| url | https://doi.org/10.1088/2053-1591/ac7708 |
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