Effects of low-level Er on the microstructure, mechanical and anti-corrosion properties of Mg-1Zn-0.3Zr alloy
To enhance the mechanical properties and corrosion resistance of biodegradable Mg alloys, varying amounts of Er (0, 0.5, 1, 1.5, 2, and 3 wt%) are added to the Mg-1Zn-0.3Zr alloy in this study. The phases of Mg3Er2Zn3 and MgEr are observed after Er doping. As the Er content increases, there is a pro...
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Elsevier
2025-01-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424030485 |
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| author | Junguang He Xuyang Li Qinglei Gao Wuyun Feng Huan Li Jiuba Wen |
| author_facet | Junguang He Xuyang Li Qinglei Gao Wuyun Feng Huan Li Jiuba Wen |
| author_sort | Junguang He |
| collection | DOAJ |
| description | To enhance the mechanical properties and corrosion resistance of biodegradable Mg alloys, varying amounts of Er (0, 0.5, 1, 1.5, 2, and 3 wt%) are added to the Mg-1Zn-0.3Zr alloy in this study. The phases of Mg3Er2Zn3 and MgEr are observed after Er doping. As the Er content increases, there is a progressive reduction in grain size, accompanied by a gradual increase in the volume fraction of second phases. The mechanical properties and corrosion resistance initially improve, followed by a gradual decline as the Er content continues to rise. The alloy with 1.5 wt% Er exhibits superior overall performance. Compared with the Mg-1Zn-0.3Zr alloy, the yield strength, ultimate tensile strength, and elongation increase by 18.3%, 34.3%, and 42%, respectively, while the corrosion rate decreases by 36.4%. The enhancement in mechanical properties is attributed to grain refinement and the strengthening of second phases. The improvement in corrosion resistance is linked to the formation of Er2O3, an elevated potential, and a lower potential difference between the second phases and Mg matrix. Furthermore, it is confirmed that Ca and P ions are enriched in the outer layer of corrosion products. |
| format | Article |
| id | doaj-art-067ed1215a204364824feb0a56ce69b7 |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-067ed1215a204364824feb0a56ce69b72025-01-19T06:25:57ZengElsevierJournal of Materials Research and Technology2238-78542025-01-013427542771Effects of low-level Er on the microstructure, mechanical and anti-corrosion properties of Mg-1Zn-0.3Zr alloyJunguang He0Xuyang Li1Qinglei Gao2Wuyun Feng3Huan Li4Jiuba Wen5School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, 471003, China; Provincial and Ministerial Co-construction of Collaborative Innovation Center for Non-ferrous Metal New Materials and Advanced Processing Technology, Luoyang, 471023, China; Corresponding author. School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, 471003, China.School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, 471003, ChinaSchool of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, 471003, ChinaSchool of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, 471003, ChinaSchool of Mechanical Engineering, Anyang Institute of Technology, Anyang, 455000, ChinaSchool of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, 471003, China; Provincial and Ministerial Co-construction of Collaborative Innovation Center for Non-ferrous Metal New Materials and Advanced Processing Technology, Luoyang, 471023, ChinaTo enhance the mechanical properties and corrosion resistance of biodegradable Mg alloys, varying amounts of Er (0, 0.5, 1, 1.5, 2, and 3 wt%) are added to the Mg-1Zn-0.3Zr alloy in this study. The phases of Mg3Er2Zn3 and MgEr are observed after Er doping. As the Er content increases, there is a progressive reduction in grain size, accompanied by a gradual increase in the volume fraction of second phases. The mechanical properties and corrosion resistance initially improve, followed by a gradual decline as the Er content continues to rise. The alloy with 1.5 wt% Er exhibits superior overall performance. Compared with the Mg-1Zn-0.3Zr alloy, the yield strength, ultimate tensile strength, and elongation increase by 18.3%, 34.3%, and 42%, respectively, while the corrosion rate decreases by 36.4%. The enhancement in mechanical properties is attributed to grain refinement and the strengthening of second phases. The improvement in corrosion resistance is linked to the formation of Er2O3, an elevated potential, and a lower potential difference between the second phases and Mg matrix. Furthermore, it is confirmed that Ca and P ions are enriched in the outer layer of corrosion products.http://www.sciencedirect.com/science/article/pii/S2238785424030485Mg-Zn-Zr-Er alloyEr additionMechanical propertiesCorrosion resistance |
| spellingShingle | Junguang He Xuyang Li Qinglei Gao Wuyun Feng Huan Li Jiuba Wen Effects of low-level Er on the microstructure, mechanical and anti-corrosion properties of Mg-1Zn-0.3Zr alloy Journal of Materials Research and Technology Mg-Zn-Zr-Er alloy Er addition Mechanical properties Corrosion resistance |
| title | Effects of low-level Er on the microstructure, mechanical and anti-corrosion properties of Mg-1Zn-0.3Zr alloy |
| title_full | Effects of low-level Er on the microstructure, mechanical and anti-corrosion properties of Mg-1Zn-0.3Zr alloy |
| title_fullStr | Effects of low-level Er on the microstructure, mechanical and anti-corrosion properties of Mg-1Zn-0.3Zr alloy |
| title_full_unstemmed | Effects of low-level Er on the microstructure, mechanical and anti-corrosion properties of Mg-1Zn-0.3Zr alloy |
| title_short | Effects of low-level Er on the microstructure, mechanical and anti-corrosion properties of Mg-1Zn-0.3Zr alloy |
| title_sort | effects of low level er on the microstructure mechanical and anti corrosion properties of mg 1zn 0 3zr alloy |
| topic | Mg-Zn-Zr-Er alloy Er addition Mechanical properties Corrosion resistance |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424030485 |
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