Microstructure, mechanical properties and fracture behaviors of large-scale sand-cast Mg-3Y-2Gd-1Nd-0.4Zr alloy
In order to improve the ductility of commercial WE43 alloy and reduce its cost, a Mg-3Y-2Gd-1Nd-0.4Zr alloy with a low amount of rare earths was developed and prepared by sand casting with a differential pressure casting system. Its microstructure, mechanical properties and fracture behaviors in the...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2023-08-01
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| Series: | Journal of Magnesium and Alloys |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2213956721002139 |
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| author | Lixiang Yang Yuanding Huang Zhengquan Hou Lv Xiao Yuling Xu Xiwang Dong Fei Li Gerrit Kurz Baode Sun Zhongquan Li Norbert Hort |
| author_facet | Lixiang Yang Yuanding Huang Zhengquan Hou Lv Xiao Yuling Xu Xiwang Dong Fei Li Gerrit Kurz Baode Sun Zhongquan Li Norbert Hort |
| author_sort | Lixiang Yang |
| collection | DOAJ |
| description | In order to improve the ductility of commercial WE43 alloy and reduce its cost, a Mg-3Y-2Gd-1Nd-0.4Zr alloy with a low amount of rare earths was developed and prepared by sand casting with a differential pressure casting system. Its microstructure, mechanical properties and fracture behaviors in the as-cast, solution-treated and as-aged states were evaluated. It is found that the aged alloy exhibited excellent comprehensive mechanical properties owing to the fine dense plate-shaped β' precipitates formed on prismatic habits during aging at 200 °C for 192 hrs after solution-treated at 500 °C for 24 hrs. Its ultimate tensile strength, yield strength, and elongation at ambient temperature reach to 319 ± 10 MPa, 202 ± 2 MPa and 8.7 ± 0.3% as well as 230 ± 4 MPa, 155 ± 1 MPa and 16.0 ± 0.5% at 250 °C. The fracture mode of as-aged alloy was transferred from cleavage at room temperature to quasi-cleavage and ductile fracture at the test temperature 300 °C. The properties of large-scale components fabricated using the developed Mg-3Y-2Gd-1Nd-0.4Zr alloy are better than those of commercial WE43 alloy, suggesting that the new developed alloy is a good candidate to fabricate the large complex thin-walled components. |
| first_indexed | 2024-03-11T18:28:36Z |
| format | Article |
| id | doaj.art-17d493a36ff7452a86621422bde1738a |
| institution | Directory Open Access Journal |
| issn | 2213-9567 |
| language | English |
| last_indexed | 2024-03-11T18:28:36Z |
| publishDate | 2023-08-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Journal of Magnesium and Alloys |
| spelling | doaj.art-17d493a36ff7452a86621422bde1738a2023-10-13T13:53:47ZengKeAi Communications Co., Ltd.Journal of Magnesium and Alloys2213-95672023-08-0111827632775Microstructure, mechanical properties and fracture behaviors of large-scale sand-cast Mg-3Y-2Gd-1Nd-0.4Zr alloyLixiang Yang0Yuanding Huang1Zhengquan Hou2Lv Xiao3Yuling Xu4Xiwang Dong5Fei Li6Gerrit Kurz7Baode Sun8Zhongquan Li9Norbert Hort10Shanghai Key Lab of Advanced High-temperature Materials and Precision Forming and State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; MagIC - Magnesium Innovation Centre and Institute of Metallic Biomaterials, Helmholtz-Zentrum Hereon, Max-Planck Straße 1, 21502 Geesthacht, Germany; Shanghai Spaceflight Precision Machinery Research Institute, Shanghai 201600, ChinaMagIC - Magnesium Innovation Centre and Institute of Metallic Biomaterials, Helmholtz-Zentrum Hereon, Max-Planck Straße 1, 21502 Geesthacht, GermanyShanghai Spaceflight Precision Machinery Research Institute, Shanghai 201600, ChinaShanghai Spaceflight Precision Machinery Research Institute, Shanghai 201600, China; Corresponding authors.Shanghai Spaceflight Precision Machinery Research Institute, Shanghai 201600, ChinaShanghai Spaceflight Precision Machinery Research Institute, Shanghai 201600, ChinaShanghai Key Lab of Advanced High-temperature Materials and Precision Forming and State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; Corresponding authors.Institute of Material and Process Design, Helmholtz-Zentrum Hereon, Max-Planck Straße 1, 21502 Geesthacht, GermanyShanghai Key Lab of Advanced High-temperature Materials and Precision Forming and State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaShanghai Key Lab of Advanced High-temperature Materials and Precision Forming and State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; Shanghai Spaceflight Precision Machinery Research Institute, Shanghai 201600, ChinaMagIC - Magnesium Innovation Centre and Institute of Metallic Biomaterials, Helmholtz-Zentrum Hereon, Max-Planck Straße 1, 21502 Geesthacht, GermanyIn order to improve the ductility of commercial WE43 alloy and reduce its cost, a Mg-3Y-2Gd-1Nd-0.4Zr alloy with a low amount of rare earths was developed and prepared by sand casting with a differential pressure casting system. Its microstructure, mechanical properties and fracture behaviors in the as-cast, solution-treated and as-aged states were evaluated. It is found that the aged alloy exhibited excellent comprehensive mechanical properties owing to the fine dense plate-shaped β' precipitates formed on prismatic habits during aging at 200 °C for 192 hrs after solution-treated at 500 °C for 24 hrs. Its ultimate tensile strength, yield strength, and elongation at ambient temperature reach to 319 ± 10 MPa, 202 ± 2 MPa and 8.7 ± 0.3% as well as 230 ± 4 MPa, 155 ± 1 MPa and 16.0 ± 0.5% at 250 °C. The fracture mode of as-aged alloy was transferred from cleavage at room temperature to quasi-cleavage and ductile fracture at the test temperature 300 °C. The properties of large-scale components fabricated using the developed Mg-3Y-2Gd-1Nd-0.4Zr alloy are better than those of commercial WE43 alloy, suggesting that the new developed alloy is a good candidate to fabricate the large complex thin-walled components.http://www.sciencedirect.com/science/article/pii/S2213956721002139Magnesium alloyWE43Large-scale sand-castDuctility |
| spellingShingle | Lixiang Yang Yuanding Huang Zhengquan Hou Lv Xiao Yuling Xu Xiwang Dong Fei Li Gerrit Kurz Baode Sun Zhongquan Li Norbert Hort Microstructure, mechanical properties and fracture behaviors of large-scale sand-cast Mg-3Y-2Gd-1Nd-0.4Zr alloy Journal of Magnesium and Alloys Magnesium alloy WE43 Large-scale sand-cast Ductility |
| title | Microstructure, mechanical properties and fracture behaviors of large-scale sand-cast Mg-3Y-2Gd-1Nd-0.4Zr alloy |
| title_full | Microstructure, mechanical properties and fracture behaviors of large-scale sand-cast Mg-3Y-2Gd-1Nd-0.4Zr alloy |
| title_fullStr | Microstructure, mechanical properties and fracture behaviors of large-scale sand-cast Mg-3Y-2Gd-1Nd-0.4Zr alloy |
| title_full_unstemmed | Microstructure, mechanical properties and fracture behaviors of large-scale sand-cast Mg-3Y-2Gd-1Nd-0.4Zr alloy |
| title_short | Microstructure, mechanical properties and fracture behaviors of large-scale sand-cast Mg-3Y-2Gd-1Nd-0.4Zr alloy |
| title_sort | microstructure mechanical properties and fracture behaviors of large scale sand cast mg 3y 2gd 1nd 0 4zr alloy |
| topic | Magnesium alloy WE43 Large-scale sand-cast Ductility |
| url | http://www.sciencedirect.com/science/article/pii/S2213956721002139 |
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