Influence of Gd alloying and ultrasonic vibration hybrid treatment on the microstructures, mechanical properties and strengthening mechanisms of Al/Mg interface by compound casting
The hybrid treatment of Gd alloying and ultrasonic vibration was employed to improve microstructure and bonding performance of Al/Mg interface by compound casting, and the interfacial microstructures, mechanical properties and strengthening mechanisms of the Al/Mg interface with the hybrid treatment...
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Elsevier
2025-03-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425000778 |
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| author | Qingqing Li Wenming Jiang Yuancai Xu Linghui Yu Ziwei Peng Yunchang Xin Zitian Fan |
| author_facet | Qingqing Li Wenming Jiang Yuancai Xu Linghui Yu Ziwei Peng Yunchang Xin Zitian Fan |
| author_sort | Qingqing Li |
| collection | DOAJ |
| description | The hybrid treatment of Gd alloying and ultrasonic vibration was employed to improve microstructure and bonding performance of Al/Mg interface by compound casting, and the interfacial microstructures, mechanical properties and strengthening mechanisms of the Al/Mg interface with the hybrid treatment were investigated. It was found that the oxide film between the Al–Mg intermetallic compounds (IMCs) layer and the eutectic layer of the Al/Mg interface with 0.6 wt% Gd was partially dissolved and become less continuous. The Al2Gd and Al8Mn4Gd precipitates were formed and aggregated at the eutectic layer of the interface. The oxide film of the interface with hybrid treatment was completely removed. A more homogeneous interfacial structure was achieved. The Mg2Si particles, Al2Gd and Al8Mn4Gd precipitates were dispersed and refined. The coherent relationships among Mg2Si, Al12Mg17 and δ-Mg as well as the Gd contained precipitates and Al12Mg17 were revealed. The microhardness of the Al/Mg interface with hybrid treatment was the most homogeneous. The shear strength of Al/Mg bimetal with hybrid treatment was 59.0 MPa, which increased by 57.8%, compared with that of the untreated bimetal. The crack origin during shear deformation was changed from the location of oxide film to the boundary between the solid insert and the IMCs layer. The strengthening mechanisms of the Al/Mg interface with hybrid treatment were precipitation strengthening, dispersing strengthening and refinement strengthening. |
| format | Article |
| id | doaj-art-bfa2007253c74fea94d6432c227a8f64 |
| 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-bfa2007253c74fea94d6432c227a8f642025-01-18T05:04:44ZengElsevierJournal of Materials Research and Technology2238-78542025-03-013510401053Influence of Gd alloying and ultrasonic vibration hybrid treatment on the microstructures, mechanical properties and strengthening mechanisms of Al/Mg interface by compound castingQingqing Li0Wenming Jiang1Yuancai Xu2Linghui Yu3Ziwei Peng4Yunchang Xin5Zitian Fan6State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, PR ChinaState Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, PR China; Corresponding author.State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, PR ChinaState Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, PR ChinaState Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, PR ChinaKey Laboratory for Light-weight Materials, Nanjing Tech University, Nanjing, 210009, PR ChinaState Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, PR ChinaThe hybrid treatment of Gd alloying and ultrasonic vibration was employed to improve microstructure and bonding performance of Al/Mg interface by compound casting, and the interfacial microstructures, mechanical properties and strengthening mechanisms of the Al/Mg interface with the hybrid treatment were investigated. It was found that the oxide film between the Al–Mg intermetallic compounds (IMCs) layer and the eutectic layer of the Al/Mg interface with 0.6 wt% Gd was partially dissolved and become less continuous. The Al2Gd and Al8Mn4Gd precipitates were formed and aggregated at the eutectic layer of the interface. The oxide film of the interface with hybrid treatment was completely removed. A more homogeneous interfacial structure was achieved. The Mg2Si particles, Al2Gd and Al8Mn4Gd precipitates were dispersed and refined. The coherent relationships among Mg2Si, Al12Mg17 and δ-Mg as well as the Gd contained precipitates and Al12Mg17 were revealed. The microhardness of the Al/Mg interface with hybrid treatment was the most homogeneous. The shear strength of Al/Mg bimetal with hybrid treatment was 59.0 MPa, which increased by 57.8%, compared with that of the untreated bimetal. The crack origin during shear deformation was changed from the location of oxide film to the boundary between the solid insert and the IMCs layer. The strengthening mechanisms of the Al/Mg interface with hybrid treatment were precipitation strengthening, dispersing strengthening and refinement strengthening.http://www.sciencedirect.com/science/article/pii/S2238785425000778Al/Mg bimetalsInterfacial microstructuresMechanical propertiesCompound castingGd alloyingUltrasonic vibration |
| spellingShingle | Qingqing Li Wenming Jiang Yuancai Xu Linghui Yu Ziwei Peng Yunchang Xin Zitian Fan Influence of Gd alloying and ultrasonic vibration hybrid treatment on the microstructures, mechanical properties and strengthening mechanisms of Al/Mg interface by compound casting Journal of Materials Research and Technology Al/Mg bimetals Interfacial microstructures Mechanical properties Compound casting Gd alloying Ultrasonic vibration |
| title | Influence of Gd alloying and ultrasonic vibration hybrid treatment on the microstructures, mechanical properties and strengthening mechanisms of Al/Mg interface by compound casting |
| title_full | Influence of Gd alloying and ultrasonic vibration hybrid treatment on the microstructures, mechanical properties and strengthening mechanisms of Al/Mg interface by compound casting |
| title_fullStr | Influence of Gd alloying and ultrasonic vibration hybrid treatment on the microstructures, mechanical properties and strengthening mechanisms of Al/Mg interface by compound casting |
| title_full_unstemmed | Influence of Gd alloying and ultrasonic vibration hybrid treatment on the microstructures, mechanical properties and strengthening mechanisms of Al/Mg interface by compound casting |
| title_short | Influence of Gd alloying and ultrasonic vibration hybrid treatment on the microstructures, mechanical properties and strengthening mechanisms of Al/Mg interface by compound casting |
| title_sort | influence of gd alloying and ultrasonic vibration hybrid treatment on the microstructures mechanical properties and strengthening mechanisms of al mg interface by compound casting |
| topic | Al/Mg bimetals Interfacial microstructures Mechanical properties Compound casting Gd alloying Ultrasonic vibration |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425000778 |
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