Effect of Decreasing Temperature Reciprocating Upsetting-Extrusion on Microstructure and Mechanical Properties of Mg-Gd-Y-Zr Alloy
The decreasing temperature reciprocating upsetting-extrusion (RUE) deformation experiment was carried out on Mg-Gd-Y-Zr alloy to study RUE deformation on the influence of microstructure of the alloy. This work showed that with the gradual increase of RUE deformation passes, the continuous dynamic re...
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MDPI AG
2020-07-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/10/7/985 |
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| author | Wenlong Xu Jianmin Yu Guoqin Wu Leichen Jia Zhi Gao Zhan Miao Zhimin Zhang Feng Yan |
| author_facet | Wenlong Xu Jianmin Yu Guoqin Wu Leichen Jia Zhi Gao Zhan Miao Zhimin Zhang Feng Yan |
| author_sort | Wenlong Xu |
| collection | DOAJ |
| description | The decreasing temperature reciprocating upsetting-extrusion (RUE) deformation experiment was carried out on Mg-Gd-Y-Zr alloy to study RUE deformation on the influence of microstructure of the alloy. This work showed that with the gradual increase of RUE deformation passes, the continuous dynamic recrystallization (CDRX) process and the discontinuous dynamic recrystallization (DDRX) process occurred at the same time, and the grain refinement effect was obvious. Particulate precipitation induced the generation of DRX through particle-stimulated nucleation (PSN). In addition, after one pass of RUE deformation, the alloy produced a strong basal texture. As the RUE experiment proceeded, the basal texture intensity decreased. The weakening of the texture was due to the combined effect of DRX and alternating loading forces in the axial and radial directions. After four RUE passes, the mechanical properties of the alloy had been significantly improved, which was the result of the combined effect of dislocation strengthening, fine grain strengthening, and second phase strengthening. |
| first_indexed | 2024-03-10T18:19:23Z |
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| language | English |
| last_indexed | 2024-03-10T18:19:23Z |
| publishDate | 2020-07-01 |
| publisher | MDPI AG |
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| series | Metals |
| spelling | doaj.art-f186f88bc4364c869e0e1982a4eca8e92023-11-20T07:29:34ZengMDPI AGMetals2075-47012020-07-0110798510.3390/met10070985Effect of Decreasing Temperature Reciprocating Upsetting-Extrusion on Microstructure and Mechanical Properties of Mg-Gd-Y-Zr AlloyWenlong Xu0Jianmin Yu1Guoqin Wu2Leichen Jia3Zhi Gao4Zhan Miao5Zhimin Zhang6Feng Yan7School of Material Science and Engineering, North University of China, Taiyuan 030051, ChinaSchool of Material Science and Engineering, North University of China, Taiyuan 030051, ChinaSchool of Material Science and Engineering, North University of China, Taiyuan 030051, ChinaSchool of Material Science and Engineering, North University of China, Taiyuan 030051, ChinaSchool of Material Science and Engineering, North University of China, Taiyuan 030051, ChinaSchool of Material Science and Engineering, North University of China, Taiyuan 030051, ChinaSchool of Material Science and Engineering, North University of China, Taiyuan 030051, ChinaXi’an Modern Chemistry Research Institute, Xi’an 710065, ChinaThe decreasing temperature reciprocating upsetting-extrusion (RUE) deformation experiment was carried out on Mg-Gd-Y-Zr alloy to study RUE deformation on the influence of microstructure of the alloy. This work showed that with the gradual increase of RUE deformation passes, the continuous dynamic recrystallization (CDRX) process and the discontinuous dynamic recrystallization (DDRX) process occurred at the same time, and the grain refinement effect was obvious. Particulate precipitation induced the generation of DRX through particle-stimulated nucleation (PSN). In addition, after one pass of RUE deformation, the alloy produced a strong basal texture. As the RUE experiment proceeded, the basal texture intensity decreased. The weakening of the texture was due to the combined effect of DRX and alternating loading forces in the axial and radial directions. After four RUE passes, the mechanical properties of the alloy had been significantly improved, which was the result of the combined effect of dislocation strengthening, fine grain strengthening, and second phase strengthening.https://www.mdpi.com/2075-4701/10/7/985Mg-Gd-Y-Zr alloyrepetitive upsetting-extrusiongrain refinementtexturemicrostructuremechanical properties |
| spellingShingle | Wenlong Xu Jianmin Yu Guoqin Wu Leichen Jia Zhi Gao Zhan Miao Zhimin Zhang Feng Yan Effect of Decreasing Temperature Reciprocating Upsetting-Extrusion on Microstructure and Mechanical Properties of Mg-Gd-Y-Zr Alloy Metals Mg-Gd-Y-Zr alloy repetitive upsetting-extrusion grain refinement texture microstructure mechanical properties |
| title | Effect of Decreasing Temperature Reciprocating Upsetting-Extrusion on Microstructure and Mechanical Properties of Mg-Gd-Y-Zr Alloy |
| title_full | Effect of Decreasing Temperature Reciprocating Upsetting-Extrusion on Microstructure and Mechanical Properties of Mg-Gd-Y-Zr Alloy |
| title_fullStr | Effect of Decreasing Temperature Reciprocating Upsetting-Extrusion on Microstructure and Mechanical Properties of Mg-Gd-Y-Zr Alloy |
| title_full_unstemmed | Effect of Decreasing Temperature Reciprocating Upsetting-Extrusion on Microstructure and Mechanical Properties of Mg-Gd-Y-Zr Alloy |
| title_short | Effect of Decreasing Temperature Reciprocating Upsetting-Extrusion on Microstructure and Mechanical Properties of Mg-Gd-Y-Zr Alloy |
| title_sort | effect of decreasing temperature reciprocating upsetting extrusion on microstructure and mechanical properties of mg gd y zr alloy |
| topic | Mg-Gd-Y-Zr alloy repetitive upsetting-extrusion grain refinement texture microstructure mechanical properties |
| url | https://www.mdpi.com/2075-4701/10/7/985 |
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