Effect of temperature on the microstructure and mechanical properties of Mg-Gd-Y-Zn-Zr alloy during the large height-to-diameter ratio upsetting and extrusion
In this paper, the Mg-9Gd-4Y-2Zn-Zr (wt. %) alloy was used as the research object. The effect of deformation temperature on the microstructure and mechanical properties of the alloy after one pass of large height-to-diameter ratio (5.5) upsetting and extrusion was studied. The microstructure evoluti...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-09-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423022391 |
| _version_ | 1827780435058360320 |
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| author | Mengxian Zhang Zixuan Wang Zhimin Zhang Yong Xue |
| author_facet | Mengxian Zhang Zixuan Wang Zhimin Zhang Yong Xue |
| author_sort | Mengxian Zhang |
| collection | DOAJ |
| description | In this paper, the Mg-9Gd-4Y-2Zn-Zr (wt. %) alloy was used as the research object. The effect of deformation temperature on the microstructure and mechanical properties of the alloy after one pass of large height-to-diameter ratio (5.5) upsetting and extrusion was studied. The microstructure evolution of one pass large height-to-diameter ratio upsetting and extrusion process was studied, which provided a theoretical basis for further study of large height-to-diameter ratio reciprocating upsetting and extrusion. The results show that with the increase of deformation temperature, the grain size decreases, the dynamic recrystallization rate increases, the granular β phase increases, the texture of the alloy tends to the typical extrusion texture, and the texture intensity increases gradually. With the increase in temperature, the mechanical properties of the alloy after upsetting and extrusion with a large height-to-diameter ratio increase. The ultimate tensile strength (UTS) of the alloy deformed at 460 °C increased to 355 ± 6.7 MPa, the yield strength (YS) increased to 139 ± 3.1 MPa, and the elongation (EL) was 17 ± 0.7%. In the process of upsetting extrusion with the large height-to-diameter ratio, the initial discontinuous dynamic recrystallization (DDRX) changes to continuous dynamic recrystallization (CDRX). |
| first_indexed | 2024-03-11T15:04:30Z |
| format | Article |
| id | doaj.art-2d64f3da025a483fa4ad8e1bcf0a74a4 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-11T15:04:30Z |
| publishDate | 2023-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-2d64f3da025a483fa4ad8e1bcf0a74a42023-10-30T06:04:38ZengElsevierJournal of Materials Research and Technology2238-78542023-09-012680368047Effect of temperature on the microstructure and mechanical properties of Mg-Gd-Y-Zn-Zr alloy during the large height-to-diameter ratio upsetting and extrusionMengxian Zhang0Zixuan Wang1Zhimin Zhang2Yong Xue3School of Materials Science and Engineering, North University of China, Taiyuan 030051, ChinaSchool of Materials Science and Engineering, North University of China, Taiyuan 030051, ChinaSchool of Materials Science and Engineering, North University of China, Taiyuan 030051, ChinaCorresponding author.; School of Materials Science and Engineering, North University of China, Taiyuan 030051, ChinaIn this paper, the Mg-9Gd-4Y-2Zn-Zr (wt. %) alloy was used as the research object. The effect of deformation temperature on the microstructure and mechanical properties of the alloy after one pass of large height-to-diameter ratio (5.5) upsetting and extrusion was studied. The microstructure evolution of one pass large height-to-diameter ratio upsetting and extrusion process was studied, which provided a theoretical basis for further study of large height-to-diameter ratio reciprocating upsetting and extrusion. The results show that with the increase of deformation temperature, the grain size decreases, the dynamic recrystallization rate increases, the granular β phase increases, the texture of the alloy tends to the typical extrusion texture, and the texture intensity increases gradually. With the increase in temperature, the mechanical properties of the alloy after upsetting and extrusion with a large height-to-diameter ratio increase. The ultimate tensile strength (UTS) of the alloy deformed at 460 °C increased to 355 ± 6.7 MPa, the yield strength (YS) increased to 139 ± 3.1 MPa, and the elongation (EL) was 17 ± 0.7%. In the process of upsetting extrusion with the large height-to-diameter ratio, the initial discontinuous dynamic recrystallization (DDRX) changes to continuous dynamic recrystallization (CDRX).http://www.sciencedirect.com/science/article/pii/S2238785423022391Mg-Gd-Y-Zn-ZrLarge height-to-diameter ratioUpsetting and extrusionMechanical properties |
| spellingShingle | Mengxian Zhang Zixuan Wang Zhimin Zhang Yong Xue Effect of temperature on the microstructure and mechanical properties of Mg-Gd-Y-Zn-Zr alloy during the large height-to-diameter ratio upsetting and extrusion Journal of Materials Research and Technology Mg-Gd-Y-Zn-Zr Large height-to-diameter ratio Upsetting and extrusion Mechanical properties |
| title | Effect of temperature on the microstructure and mechanical properties of Mg-Gd-Y-Zn-Zr alloy during the large height-to-diameter ratio upsetting and extrusion |
| title_full | Effect of temperature on the microstructure and mechanical properties of Mg-Gd-Y-Zn-Zr alloy during the large height-to-diameter ratio upsetting and extrusion |
| title_fullStr | Effect of temperature on the microstructure and mechanical properties of Mg-Gd-Y-Zn-Zr alloy during the large height-to-diameter ratio upsetting and extrusion |
| title_full_unstemmed | Effect of temperature on the microstructure and mechanical properties of Mg-Gd-Y-Zn-Zr alloy during the large height-to-diameter ratio upsetting and extrusion |
| title_short | Effect of temperature on the microstructure and mechanical properties of Mg-Gd-Y-Zn-Zr alloy during the large height-to-diameter ratio upsetting and extrusion |
| title_sort | effect of temperature on the microstructure and mechanical properties of mg gd y zn zr alloy during the large height to diameter ratio upsetting and extrusion |
| topic | Mg-Gd-Y-Zn-Zr Large height-to-diameter ratio Upsetting and extrusion Mechanical properties |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423022391 |
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