On the improved tensile strength and ductility of Mg--Sn--Zn--Mn alloy processed by aging prior to extrusion
This study investigated the influence of aging prior to extrusion (APE) on the tensile strength and ductility of as-extruded Mg–8.32Sn–1.85Zn–0.17Mn alloy. Results demonstrated that APE treatment dramatically increased the volume fraction of recrystallized grains, thereby decreasing the grain size o...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
KeAi Communications Co., Ltd.
2019-12-01
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| Series: | Journal of Magnesium and Alloys |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2213956719300830 |
| _version_ | 1797204429365051392 |
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| author | Liping Zhong Yongjian Wang Yuchen Dou |
| author_facet | Liping Zhong Yongjian Wang Yuchen Dou |
| author_sort | Liping Zhong |
| collection | DOAJ |
| description | This study investigated the influence of aging prior to extrusion (APE) on the tensile strength and ductility of as-extruded Mg–8.32Sn–1.85Zn–0.17Mn alloy. Results demonstrated that APE treatment dramatically increased the volume fraction of recrystallized grains, thereby decreasing the grain size of the as-extruded alloy. This phenomenon was primarily attributed to the particle-stimulated nucleation and pinning effect induced by large amounts of small Mg2Sn precipitates produced by the APE treatment and dynamic precipitation. The tensile yield strength increased from 242.4 MPa to 256.5 MPa after APE treatment. The improved tensile strength can be attributed to the enhanced grain boundary strengthening and precipitation strengthening. The ductility of the as-extruded alloy also markedly increased from 7.1% to 13.5% after the APE treatment. The improved ductility of APE alloy was attributed to the texture randomization, the activity of pyramidal <c+a> slip and the suppressed formation of {10-11} contraction twins and coarse Mg2Sn phases. Keywords: Mg–Sn based alloy, Aging prior to extrusion, Microstructure, Mechanical properties |
| first_indexed | 2024-04-24T08:35:05Z |
| format | Article |
| id | doaj.art-ec70944cd62a4533bbcd50e8e293b440 |
| institution | Directory Open Access Journal |
| issn | 2213-9567 |
| language | English |
| last_indexed | 2024-04-24T08:35:05Z |
| publishDate | 2019-12-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Journal of Magnesium and Alloys |
| spelling | doaj.art-ec70944cd62a4533bbcd50e8e293b4402024-04-16T17:38:48ZengKeAi Communications Co., Ltd.Journal of Magnesium and Alloys2213-95672019-12-0174637647On the improved tensile strength and ductility of Mg--Sn--Zn--Mn alloy processed by aging prior to extrusionLiping Zhong0Yongjian Wang1Yuchen Dou2College of Materials Science and Engineering, Sichuan University of Science & Engineering, Zigong 643000, China; Material Corrosion and Protection Key Laboratory of Sichuan province, Zigong 643000, ChinaCollege of Materials Science and Engineering, Sichuan University of Science & Engineering, Zigong 643000, China; Material Corrosion and Protection Key Laboratory of Sichuan province, Zigong 643000, China; Corresponding author at: College of Materials Science and Engineering, Sichuan University of Science & Engineering, Zigong 643000, China.College of Materials Science and Engineering, Sichuan University of Science & Engineering, Zigong 643000, China; Material Corrosion and Protection Key Laboratory of Sichuan province, Zigong 643000, ChinaThis study investigated the influence of aging prior to extrusion (APE) on the tensile strength and ductility of as-extruded Mg–8.32Sn–1.85Zn–0.17Mn alloy. Results demonstrated that APE treatment dramatically increased the volume fraction of recrystallized grains, thereby decreasing the grain size of the as-extruded alloy. This phenomenon was primarily attributed to the particle-stimulated nucleation and pinning effect induced by large amounts of small Mg2Sn precipitates produced by the APE treatment and dynamic precipitation. The tensile yield strength increased from 242.4 MPa to 256.5 MPa after APE treatment. The improved tensile strength can be attributed to the enhanced grain boundary strengthening and precipitation strengthening. The ductility of the as-extruded alloy also markedly increased from 7.1% to 13.5% after the APE treatment. The improved ductility of APE alloy was attributed to the texture randomization, the activity of pyramidal <c+a> slip and the suppressed formation of {10-11} contraction twins and coarse Mg2Sn phases. Keywords: Mg–Sn based alloy, Aging prior to extrusion, Microstructure, Mechanical propertieshttp://www.sciencedirect.com/science/article/pii/S2213956719300830 |
| spellingShingle | Liping Zhong Yongjian Wang Yuchen Dou On the improved tensile strength and ductility of Mg--Sn--Zn--Mn alloy processed by aging prior to extrusion Journal of Magnesium and Alloys |
| title | On the improved tensile strength and ductility of Mg--Sn--Zn--Mn alloy processed by aging prior to extrusion |
| title_full | On the improved tensile strength and ductility of Mg--Sn--Zn--Mn alloy processed by aging prior to extrusion |
| title_fullStr | On the improved tensile strength and ductility of Mg--Sn--Zn--Mn alloy processed by aging prior to extrusion |
| title_full_unstemmed | On the improved tensile strength and ductility of Mg--Sn--Zn--Mn alloy processed by aging prior to extrusion |
| title_short | On the improved tensile strength and ductility of Mg--Sn--Zn--Mn alloy processed by aging prior to extrusion |
| title_sort | on the improved tensile strength and ductility of mg sn zn mn alloy processed by aging prior to extrusion |
| url | http://www.sciencedirect.com/science/article/pii/S2213956719300830 |
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