Microstructures and mechanical properties of Mg–6Zn–1Y–0.85Zr alloy prepared at different extrusion temperatures and speeds
The influence of extrusion temperature and speed on the microstructures and mechanical properties of the as-extruded Mg–6Zn–1Y–0.85Zr (ZWK610) alloy was inquired by indirect extrusion at three ram speeds (1, 3 and 6 mm/s) and extruding temperatures (250, 300 and 350 °C). The extruded alloy organizat...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-11-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785422015034 |
| _version_ | 1811198791423885312 |
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| author | Wenhong Liu Jiaxin Bao Mingliang Qiao Siqi Yin Zhankun Wang Jianzhong Cui Zhiqiang Zhang |
| author_facet | Wenhong Liu Jiaxin Bao Mingliang Qiao Siqi Yin Zhankun Wang Jianzhong Cui Zhiqiang Zhang |
| author_sort | Wenhong Liu |
| collection | DOAJ |
| description | The influence of extrusion temperature and speed on the microstructures and mechanical properties of the as-extruded Mg–6Zn–1Y–0.85Zr (ZWK610) alloy was inquired by indirect extrusion at three ram speeds (1, 3 and 6 mm/s) and extruding temperatures (250, 300 and 350 °C). The extruded alloy organization mainly consists of equiaxed finely dynamic recrystallized (DRXed) grains, elongated coarse un-DRXed grains and massive W–Mg3Y2Zn3 and I–Mg3Zn6Y phases. The increasing extrusion temperature and speed result in larger DRXed grains, higher DRXed volume fractions and fewer second phase volume fractions. Mechanical properties drop with increasing extrusion temperature and speed. The extruded alloy prepared at low temperature and speed reveals a lower DRXed volume fraction, a finer DRXed grain size and a higher phase volume fraction because a large number of depressively distributed particles could inhibit the grain boundary migration and pin the dislocations effectively. Excellent mechanical properties were acquired at 250 °C and 1 mm/s, with ultimate tensile and tensile yield strengths of 410 MPa and 365 MPa, respectively, while the elongation is 7.1%. |
| first_indexed | 2024-04-12T01:36:00Z |
| format | Article |
| id | doaj.art-492a30f2526a4d128760917d662f7b35 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-12T01:36:00Z |
| publishDate | 2022-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-492a30f2526a4d128760917d662f7b352022-12-22T03:53:18ZengElsevierJournal of Materials Research and Technology2238-78542022-11-012110421052Microstructures and mechanical properties of Mg–6Zn–1Y–0.85Zr alloy prepared at different extrusion temperatures and speedsWenhong Liu0Jiaxin Bao1Mingliang Qiao2Siqi Yin3Zhankun Wang4Jianzhong Cui5Zhiqiang Zhang6College of Information Science and Engineering, Northeastern University, Shenyang, 110819, PR China; Corresponding author.Key Lab of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, 314 Mailbox, Shenyang 110819, ChinaKey Lab of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, 314 Mailbox, Shenyang 110819, ChinaSchool of Mechanical Engineering, Dalian Jiaotong University, Dalian, 116028, PR ChinaKey Lab of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, 314 Mailbox, Shenyang 110819, ChinaKey Lab of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, 314 Mailbox, Shenyang 110819, ChinaKey Lab of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, 314 Mailbox, Shenyang 110819, China; Corresponding author.The influence of extrusion temperature and speed on the microstructures and mechanical properties of the as-extruded Mg–6Zn–1Y–0.85Zr (ZWK610) alloy was inquired by indirect extrusion at three ram speeds (1, 3 and 6 mm/s) and extruding temperatures (250, 300 and 350 °C). The extruded alloy organization mainly consists of equiaxed finely dynamic recrystallized (DRXed) grains, elongated coarse un-DRXed grains and massive W–Mg3Y2Zn3 and I–Mg3Zn6Y phases. The increasing extrusion temperature and speed result in larger DRXed grains, higher DRXed volume fractions and fewer second phase volume fractions. Mechanical properties drop with increasing extrusion temperature and speed. The extruded alloy prepared at low temperature and speed reveals a lower DRXed volume fraction, a finer DRXed grain size and a higher phase volume fraction because a large number of depressively distributed particles could inhibit the grain boundary migration and pin the dislocations effectively. Excellent mechanical properties were acquired at 250 °C and 1 mm/s, with ultimate tensile and tensile yield strengths of 410 MPa and 365 MPa, respectively, while the elongation is 7.1%.http://www.sciencedirect.com/science/article/pii/S2238785422015034Mg–Zn–Y alloyExtrusion speedExtrusion temperatureDynamic recrystallizationMechanical properties |
| spellingShingle | Wenhong Liu Jiaxin Bao Mingliang Qiao Siqi Yin Zhankun Wang Jianzhong Cui Zhiqiang Zhang Microstructures and mechanical properties of Mg–6Zn–1Y–0.85Zr alloy prepared at different extrusion temperatures and speeds Journal of Materials Research and Technology Mg–Zn–Y alloy Extrusion speed Extrusion temperature Dynamic recrystallization Mechanical properties |
| title | Microstructures and mechanical properties of Mg–6Zn–1Y–0.85Zr alloy prepared at different extrusion temperatures and speeds |
| title_full | Microstructures and mechanical properties of Mg–6Zn–1Y–0.85Zr alloy prepared at different extrusion temperatures and speeds |
| title_fullStr | Microstructures and mechanical properties of Mg–6Zn–1Y–0.85Zr alloy prepared at different extrusion temperatures and speeds |
| title_full_unstemmed | Microstructures and mechanical properties of Mg–6Zn–1Y–0.85Zr alloy prepared at different extrusion temperatures and speeds |
| title_short | Microstructures and mechanical properties of Mg–6Zn–1Y–0.85Zr alloy prepared at different extrusion temperatures and speeds |
| title_sort | microstructures and mechanical properties of mg 6zn 1y 0 85zr alloy prepared at different extrusion temperatures and speeds |
| topic | Mg–Zn–Y alloy Extrusion speed Extrusion temperature Dynamic recrystallization Mechanical properties |
| url | http://www.sciencedirect.com/science/article/pii/S2238785422015034 |
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