Achieving good comprehensive mechanical properties Mg–7Y–2Zn–1Mn alloy via regulating heat treatment prior to hot extrusion
The influence of heat treatment prior to hot extrusion on microstructure evolution and mechanical properties are elaborated for Mg–7Y–2Zn–1Mn (wt. %) alloy containing long-period stacking ordered (LPSO) phase. Solution and aging treatment are shown to increase obviously tensile strength of the alloy...
Saved in:
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-03-01
|
| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425000353 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841545490559139840 |
|---|---|
| author | Yulun Luo Zhihua Dong Bin Jiang Zhiying Zheng Jianxin Zhou Yongfeng Li Shengwen Bai Shiyu Zhong Jiangfeng Song Dingfei Zhang |
| author_facet | Yulun Luo Zhihua Dong Bin Jiang Zhiying Zheng Jianxin Zhou Yongfeng Li Shengwen Bai Shiyu Zhong Jiangfeng Song Dingfei Zhang |
| author_sort | Yulun Luo |
| collection | DOAJ |
| description | The influence of heat treatment prior to hot extrusion on microstructure evolution and mechanical properties are elaborated for Mg–7Y–2Zn–1Mn (wt. %) alloy containing long-period stacking ordered (LPSO) phase. Solution and aging treatment are shown to increase obviously tensile strength of the alloy, while keeping relatively high ductility. Good comprehensive mechanical properties with the ultimate tensile strength of 396 MPa, yield strength of 314 MPa, and elongation of 9.7 % are achieved by the aging treatment. It is closely correlated with the formation bimodal structure and the enhanced precipitation of γ′ and lamellar 14H-LPSO phase. While the granular 18R-LPSO phase and the kink deformation of lamellar 14H-LPSO phase are found to promote the dynamic recrystallization process during hot extrusion, the formation of large amount of γ′ and lamellar 14H-LPSO phase tends to uniform the stress and hinder the dynamic recrystallization process. Balance of the two factors contributes to the formation of bimodal structure and the improved mechanical properties. The present advances enhance the understanding required for the optimal design of thermo-mechanical process of LPSO-containing Mg alloys. |
| format | Article |
| id | doaj-art-2917c456186f41d6bddd238575449f06 |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-2917c456186f41d6bddd238575449f062025-01-12T05:25:02ZengElsevierJournal of Materials Research and Technology2238-78542025-03-0135332343Achieving good comprehensive mechanical properties Mg–7Y–2Zn–1Mn alloy via regulating heat treatment prior to hot extrusionYulun Luo0Zhihua Dong1Bin Jiang2Zhiying Zheng3Jianxin Zhou4Yongfeng Li5Shengwen Bai6Shiyu Zhong7Jiangfeng Song8Dingfei Zhang9National Engineering Research Center for Magnesium Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China; National Key Laboratory of Advanced Casting Technologies, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, ChinaNational Engineering Research Center for Magnesium Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China; National Key Laboratory of Advanced Casting Technologies, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China; Corresponding author. National Engineering Research Center for Magnesium Alloys, Chongqing University, Chongqing, 400044, China.National Engineering Research Center for Magnesium Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China; National Key Laboratory of Advanced Casting Technologies, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China; Corresponding author. National Engineering Research Center for Magnesium Alloys, Chongqing University, Chongqing, 400044, China.National Engineering Research Center for Magnesium Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China; National Key Laboratory of Advanced Casting Technologies, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, ChinaNational Engineering Research Center for Magnesium Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China; National Key Laboratory of Advanced Casting Technologies, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, ChinaNational Engineering Research Center for Magnesium Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China; National Key Laboratory of Advanced Casting Technologies, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, ChinaNational Engineering Research Center for Magnesium Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China; National Key Laboratory of Advanced Casting Technologies, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, ChinaDepartment of Mechanical Engineering, City University of Hong Kong, Kowloon, ChinaNational Engineering Research Center for Magnesium Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China; National Key Laboratory of Advanced Casting Technologies, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, ChinaNational Engineering Research Center for Magnesium Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China; National Key Laboratory of Advanced Casting Technologies, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, ChinaThe influence of heat treatment prior to hot extrusion on microstructure evolution and mechanical properties are elaborated for Mg–7Y–2Zn–1Mn (wt. %) alloy containing long-period stacking ordered (LPSO) phase. Solution and aging treatment are shown to increase obviously tensile strength of the alloy, while keeping relatively high ductility. Good comprehensive mechanical properties with the ultimate tensile strength of 396 MPa, yield strength of 314 MPa, and elongation of 9.7 % are achieved by the aging treatment. It is closely correlated with the formation bimodal structure and the enhanced precipitation of γ′ and lamellar 14H-LPSO phase. While the granular 18R-LPSO phase and the kink deformation of lamellar 14H-LPSO phase are found to promote the dynamic recrystallization process during hot extrusion, the formation of large amount of γ′ and lamellar 14H-LPSO phase tends to uniform the stress and hinder the dynamic recrystallization process. Balance of the two factors contributes to the formation of bimodal structure and the improved mechanical properties. The present advances enhance the understanding required for the optimal design of thermo-mechanical process of LPSO-containing Mg alloys.http://www.sciencedirect.com/science/article/pii/S2238785425000353Magnesium alloysMechanical propertiesLPSO phaseHeat treatment |
| spellingShingle | Yulun Luo Zhihua Dong Bin Jiang Zhiying Zheng Jianxin Zhou Yongfeng Li Shengwen Bai Shiyu Zhong Jiangfeng Song Dingfei Zhang Achieving good comprehensive mechanical properties Mg–7Y–2Zn–1Mn alloy via regulating heat treatment prior to hot extrusion Journal of Materials Research and Technology Magnesium alloys Mechanical properties LPSO phase Heat treatment |
| title | Achieving good comprehensive mechanical properties Mg–7Y–2Zn–1Mn alloy via regulating heat treatment prior to hot extrusion |
| title_full | Achieving good comprehensive mechanical properties Mg–7Y–2Zn–1Mn alloy via regulating heat treatment prior to hot extrusion |
| title_fullStr | Achieving good comprehensive mechanical properties Mg–7Y–2Zn–1Mn alloy via regulating heat treatment prior to hot extrusion |
| title_full_unstemmed | Achieving good comprehensive mechanical properties Mg–7Y–2Zn–1Mn alloy via regulating heat treatment prior to hot extrusion |
| title_short | Achieving good comprehensive mechanical properties Mg–7Y–2Zn–1Mn alloy via regulating heat treatment prior to hot extrusion |
| title_sort | achieving good comprehensive mechanical properties mg 7y 2zn 1mn alloy via regulating heat treatment prior to hot extrusion |
| topic | Magnesium alloys Mechanical properties LPSO phase Heat treatment |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425000353 |
| work_keys_str_mv | AT yulunluo achievinggoodcomprehensivemechanicalpropertiesmg7y2zn1mnalloyviaregulatingheattreatmentpriortohotextrusion AT zhihuadong achievinggoodcomprehensivemechanicalpropertiesmg7y2zn1mnalloyviaregulatingheattreatmentpriortohotextrusion AT binjiang achievinggoodcomprehensivemechanicalpropertiesmg7y2zn1mnalloyviaregulatingheattreatmentpriortohotextrusion AT zhiyingzheng achievinggoodcomprehensivemechanicalpropertiesmg7y2zn1mnalloyviaregulatingheattreatmentpriortohotextrusion AT jianxinzhou achievinggoodcomprehensivemechanicalpropertiesmg7y2zn1mnalloyviaregulatingheattreatmentpriortohotextrusion AT yongfengli achievinggoodcomprehensivemechanicalpropertiesmg7y2zn1mnalloyviaregulatingheattreatmentpriortohotextrusion AT shengwenbai achievinggoodcomprehensivemechanicalpropertiesmg7y2zn1mnalloyviaregulatingheattreatmentpriortohotextrusion AT shiyuzhong achievinggoodcomprehensivemechanicalpropertiesmg7y2zn1mnalloyviaregulatingheattreatmentpriortohotextrusion AT jiangfengsong achievinggoodcomprehensivemechanicalpropertiesmg7y2zn1mnalloyviaregulatingheattreatmentpriortohotextrusion AT dingfeizhang achievinggoodcomprehensivemechanicalpropertiesmg7y2zn1mnalloyviaregulatingheattreatmentpriortohotextrusion |