A New Extruded Mg-6Bi-3Al-1Zn Alloy with Excellent Tensile Properties
Aiming to develop low-cost Mg alloys with good mechanical properties, a new Mg-6Bi-3Al-1Zn (wt.%, BAZ631) alloy having a high ultimate tensile strength of ~402 MPa and an elongation of ~15% was fabricated by single pass extrusion. The as-extruded BAZ631 alloy demonstrates an almost fully dynamic rec...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-07-01
|
| Series: | Metals |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-4701/12/7/1159 |
| _version_ | 1827605027872571392 |
|---|---|
| author | Shuaiju Meng Haoran Xiao Zhanju Luo Mingchi Zhang Runlin Jiang Xueqi Cheng Haicun Yu |
| author_facet | Shuaiju Meng Haoran Xiao Zhanju Luo Mingchi Zhang Runlin Jiang Xueqi Cheng Haicun Yu |
| author_sort | Shuaiju Meng |
| collection | DOAJ |
| description | Aiming to develop low-cost Mg alloys with good mechanical properties, a new Mg-6Bi-3Al-1Zn (wt.%, BAZ631) alloy having a high ultimate tensile strength of ~402 MPa and an elongation of ~15% was fabricated by single pass extrusion. The as-extruded BAZ631 alloy demonstrates an almost fully dynamic recrystallized microstructure with an average grain size of ~2.9 μm. Moreover, both nano-scale Mg<sub>3</sub>Bi<sub>2</sub> and Mg<sub>17</sub>Al<sub>12</sub> precipitates were found dispersed in the matrix. These excellent mechanical properties are attributed to the combined effects of grain boundary strengthening, dispersion and precipitation strengthening induced by both micro and nanoscale second phase particles, and solid-solution strengthening. This high strength and good ductile Mg-Bi based alloy without rare-earth elements addition is expected to inspire a new alloy design strategy for fabricating high performance Mg products for larger-scale industrial applications. |
| first_indexed | 2024-03-09T06:12:51Z |
| format | Article |
| id | doaj.art-9da39114dd8d499eae3398276cd3f889 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-09T06:12:51Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-9da39114dd8d499eae3398276cd3f8892023-12-03T11:56:30ZengMDPI AGMetals2075-47012022-07-01127115910.3390/met12071159A New Extruded Mg-6Bi-3Al-1Zn Alloy with Excellent Tensile PropertiesShuaiju Meng0Haoran Xiao1Zhanju Luo2Mingchi Zhang3Runlin Jiang4Xueqi Cheng5Haicun Yu6State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou 730050, ChinaCollege of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, ChinaSchool of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, ChinaState Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou 730050, ChinaSchool of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, ChinaSchool of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, ChinaState Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou 730050, ChinaAiming to develop low-cost Mg alloys with good mechanical properties, a new Mg-6Bi-3Al-1Zn (wt.%, BAZ631) alloy having a high ultimate tensile strength of ~402 MPa and an elongation of ~15% was fabricated by single pass extrusion. The as-extruded BAZ631 alloy demonstrates an almost fully dynamic recrystallized microstructure with an average grain size of ~2.9 μm. Moreover, both nano-scale Mg<sub>3</sub>Bi<sub>2</sub> and Mg<sub>17</sub>Al<sub>12</sub> precipitates were found dispersed in the matrix. These excellent mechanical properties are attributed to the combined effects of grain boundary strengthening, dispersion and precipitation strengthening induced by both micro and nanoscale second phase particles, and solid-solution strengthening. This high strength and good ductile Mg-Bi based alloy without rare-earth elements addition is expected to inspire a new alloy design strategy for fabricating high performance Mg products for larger-scale industrial applications.https://www.mdpi.com/2075-4701/12/7/1159Mg alloyextrusionmicrostructuredynamic recrystallizationmechanical properties |
| spellingShingle | Shuaiju Meng Haoran Xiao Zhanju Luo Mingchi Zhang Runlin Jiang Xueqi Cheng Haicun Yu A New Extruded Mg-6Bi-3Al-1Zn Alloy with Excellent Tensile Properties Metals Mg alloy extrusion microstructure dynamic recrystallization mechanical properties |
| title | A New Extruded Mg-6Bi-3Al-1Zn Alloy with Excellent Tensile Properties |
| title_full | A New Extruded Mg-6Bi-3Al-1Zn Alloy with Excellent Tensile Properties |
| title_fullStr | A New Extruded Mg-6Bi-3Al-1Zn Alloy with Excellent Tensile Properties |
| title_full_unstemmed | A New Extruded Mg-6Bi-3Al-1Zn Alloy with Excellent Tensile Properties |
| title_short | A New Extruded Mg-6Bi-3Al-1Zn Alloy with Excellent Tensile Properties |
| title_sort | new extruded mg 6bi 3al 1zn alloy with excellent tensile properties |
| topic | Mg alloy extrusion microstructure dynamic recrystallization mechanical properties |
| url | https://www.mdpi.com/2075-4701/12/7/1159 |
| work_keys_str_mv | AT shuaijumeng anewextrudedmg6bi3al1znalloywithexcellenttensileproperties AT haoranxiao anewextrudedmg6bi3al1znalloywithexcellenttensileproperties AT zhanjuluo anewextrudedmg6bi3al1znalloywithexcellenttensileproperties AT mingchizhang anewextrudedmg6bi3al1znalloywithexcellenttensileproperties AT runlinjiang anewextrudedmg6bi3al1znalloywithexcellenttensileproperties AT xueqicheng anewextrudedmg6bi3al1znalloywithexcellenttensileproperties AT haicunyu anewextrudedmg6bi3al1znalloywithexcellenttensileproperties AT shuaijumeng newextrudedmg6bi3al1znalloywithexcellenttensileproperties AT haoranxiao newextrudedmg6bi3al1znalloywithexcellenttensileproperties AT zhanjuluo newextrudedmg6bi3al1znalloywithexcellenttensileproperties AT mingchizhang newextrudedmg6bi3al1znalloywithexcellenttensileproperties AT runlinjiang newextrudedmg6bi3al1znalloywithexcellenttensileproperties AT xueqicheng newextrudedmg6bi3al1znalloywithexcellenttensileproperties AT haicunyu newextrudedmg6bi3al1znalloywithexcellenttensileproperties |