Effect of rotational-die ECAP parameters on microstructure and mechanical properties of Mg97Y2Zn alloys
In this work, the Mg97Y2Zn (at%) alloys have been processed by the rotary-die (RD) ECAP technique under different temperature or pass conditions to tailor the microstructure and mechanical properties. The results reveal that the DRX ratio (VDRX) increases with the increase of ECAP pass or temperatur...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-03-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424004022 |
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| author | Xiaojie Zhou Songke Xiao Miao Li Yanan Wang Xianzheng Lu Zijian Chen Zihang Guo Hongchao Xiao Jing Guo |
| author_facet | Xiaojie Zhou Songke Xiao Miao Li Yanan Wang Xianzheng Lu Zijian Chen Zihang Guo Hongchao Xiao Jing Guo |
| author_sort | Xiaojie Zhou |
| collection | DOAJ |
| description | In this work, the Mg97Y2Zn (at%) alloys have been processed by the rotary-die (RD) ECAP technique under different temperature or pass conditions to tailor the microstructure and mechanical properties. The results reveal that the DRX ratio (VDRX) increases with the increase of ECAP pass or temperature, weakening the texture intensity. The refinement of DRXed grains saturates after 9 passes of ECAP at 350 °C, while the size of DRXed grains (dDRX) monotonically decreases with the reduction of temperature from 400 °C to 300 °C in the case of the same pass number (9P). The combination of fine dDRX, large VDRX, and directionally arranged LPSO phases along the extrusion direction endows the 350 °C–9P alloy with the optimum strength and ductility synergy, exhibiting the tensile yield strength (TYS) of 267 MPa, ultimate tensile strength (UTS) of 318 MPa, and elongation of 10.3%. However, the larger VDRX, weaker texture, less low-angle grain boundaries combine to improve the elongation (14.7%) of the 400 °C–9P alloy at the expense of the TYS (231 MPa) and UTS (303 MPa). This paper provides useful information to optimize the RD-ECAP parameters for the fabrication of high-performance Mg97Y2Zn alloys. |
| first_indexed | 2024-03-07T22:54:37Z |
| format | Article |
| id | doaj.art-bde1e8d4f8544185bab387aa8264c816 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-24T20:04:53Z |
| publishDate | 2024-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-bde1e8d4f8544185bab387aa8264c8162024-03-24T06:58:21ZengElsevierJournal of Materials Research and Technology2238-78542024-03-012938323841Effect of rotational-die ECAP parameters on microstructure and mechanical properties of Mg97Y2Zn alloysXiaojie Zhou0Songke Xiao1Miao Li2Yanan Wang3Xianzheng Lu4Zijian Chen5Zihang Guo6Hongchao Xiao7Jing Guo8Hunan Provincial Key Laboratory of Intelligent Manufacturing Technology for High-performance Mechanical Equipment, Changsha University of Science and Technology, Changsha, 410114, China; Hunan Baohuifeng New Material Science & Technology Co., Ltd., Huaihua, 418000, ChinaHunan Provincial Key Laboratory of Intelligent Manufacturing Technology for High-performance Mechanical Equipment, Changsha University of Science and Technology, Changsha, 410114, ChinaBeijing Institute of Remote Sensing Equipment, Beijing, 100854, ChinaBeijing Institute of Remote Sensing Equipment, Beijing, 100854, ChinaHunan Provincial Key Laboratory of Intelligent Manufacturing Technology for High-performance Mechanical Equipment, Changsha University of Science and Technology, Changsha, 410114, China; Corresponding author.Hunan Provincial Key Laboratory of Intelligent Manufacturing Technology for High-performance Mechanical Equipment, Changsha University of Science and Technology, Changsha, 410114, ChinaHunan Provincial Key Laboratory of Intelligent Manufacturing Technology for High-performance Mechanical Equipment, Changsha University of Science and Technology, Changsha, 410114, ChinaHunan Provincial Engineering Research Center of Wrought Magnesium Alloys and Surface Protection, Changsha, 410221, ChinaHunan Baohuifeng New Material Science & Technology Co., Ltd., Huaihua, 418000, China; Corresponding author.In this work, the Mg97Y2Zn (at%) alloys have been processed by the rotary-die (RD) ECAP technique under different temperature or pass conditions to tailor the microstructure and mechanical properties. The results reveal that the DRX ratio (VDRX) increases with the increase of ECAP pass or temperature, weakening the texture intensity. The refinement of DRXed grains saturates after 9 passes of ECAP at 350 °C, while the size of DRXed grains (dDRX) monotonically decreases with the reduction of temperature from 400 °C to 300 °C in the case of the same pass number (9P). The combination of fine dDRX, large VDRX, and directionally arranged LPSO phases along the extrusion direction endows the 350 °C–9P alloy with the optimum strength and ductility synergy, exhibiting the tensile yield strength (TYS) of 267 MPa, ultimate tensile strength (UTS) of 318 MPa, and elongation of 10.3%. However, the larger VDRX, weaker texture, less low-angle grain boundaries combine to improve the elongation (14.7%) of the 400 °C–9P alloy at the expense of the TYS (231 MPa) and UTS (303 MPa). This paper provides useful information to optimize the RD-ECAP parameters for the fabrication of high-performance Mg97Y2Zn alloys.http://www.sciencedirect.com/science/article/pii/S2238785424004022Mg alloysLong-period stacking orderedEqual channel angular pressingMicrostructureMechanical property |
| spellingShingle | Xiaojie Zhou Songke Xiao Miao Li Yanan Wang Xianzheng Lu Zijian Chen Zihang Guo Hongchao Xiao Jing Guo Effect of rotational-die ECAP parameters on microstructure and mechanical properties of Mg97Y2Zn alloys Journal of Materials Research and Technology Mg alloys Long-period stacking ordered Equal channel angular pressing Microstructure Mechanical property |
| title | Effect of rotational-die ECAP parameters on microstructure and mechanical properties of Mg97Y2Zn alloys |
| title_full | Effect of rotational-die ECAP parameters on microstructure and mechanical properties of Mg97Y2Zn alloys |
| title_fullStr | Effect of rotational-die ECAP parameters on microstructure and mechanical properties of Mg97Y2Zn alloys |
| title_full_unstemmed | Effect of rotational-die ECAP parameters on microstructure and mechanical properties of Mg97Y2Zn alloys |
| title_short | Effect of rotational-die ECAP parameters on microstructure and mechanical properties of Mg97Y2Zn alloys |
| title_sort | effect of rotational die ecap parameters on microstructure and mechanical properties of mg97y2zn alloys |
| topic | Mg alloys Long-period stacking ordered Equal channel angular pressing Microstructure Mechanical property |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424004022 |
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