Microstructure and compressive properties of solution heat-treated magnesium-Mg2Si in-situ composite foams after complex modification
In this study, open-cell Mg composite foams reinforced with in-situ Mg2Si were prepared. In order to refine the Mg2Si compound, the composite foams were co-modified with Y + Sb elements followed by solution heat treatment. The influences of complex modification and holding time of solution heat trea...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2021-11-01
|
| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S223878542101142X |
| _version_ | 1819099264799735808 |
|---|---|
| author | J.A. Liu D. Song L.R. Zhang X.Z. Yang X.Y. Zhu W.B. Sun F.Y. Chen |
| author_facet | J.A. Liu D. Song L.R. Zhang X.Z. Yang X.Y. Zhu W.B. Sun F.Y. Chen |
| author_sort | J.A. Liu |
| collection | DOAJ |
| description | In this study, open-cell Mg composite foams reinforced with in-situ Mg2Si were prepared. In order to refine the Mg2Si compound, the composite foams were co-modified with Y + Sb elements followed by solution heat treatment. The influences of complex modification and holding time of solution heat treatment on the microstructure and compressive properties of the composite foams were studied. The experimental results show that the morphology of Mg2Si is effectively changed by complex modification. The coarse dendritic primary Mg2Si (∼40 μm) is altered to the fine polygonal shape (∼10 μm); the coarse eutectic Mg2Si is transformed to a long rod or granular shape. Both compressive strength and energy absorption capacity of the composite foams are significantly increased. Additionally, with the increasing holding time of solution heat treatment, the eutectic Mg2Si undergoes obvious spheroidization, and the corner of the primary Mg2Si occurs passivation. Consequently, the compressive strength and energy absorption capacity are further improved. |
| first_indexed | 2024-12-22T00:44:07Z |
| format | Article |
| id | doaj.art-e3f1df8110a54c2887d49713f102d47b |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-12-22T00:44:07Z |
| publishDate | 2021-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-e3f1df8110a54c2887d49713f102d47b2022-12-21T18:44:36ZengElsevierJournal of Materials Research and Technology2238-78542021-11-011536733682Microstructure and compressive properties of solution heat-treated magnesium-Mg2Si in-situ composite foams after complex modificationJ.A. Liu0D. Song1L.R. Zhang2X.Z. Yang3X.Y. Zhu4W.B. Sun5F.Y. Chen6College of Materials Science and Engineering, Key Laboratory of Automobile Materials (Ministry of Education), Jilin University, Changchun 130022, PR ChinaCollege of Materials Science and Engineering, Key Laboratory of Automobile Materials (Ministry of Education), Jilin University, Changchun 130022, PR ChinaCollege of Materials Science and Engineering, Key Laboratory of Automobile Materials (Ministry of Education), Jilin University, Changchun 130022, PR ChinaSchool of Sciences, Changchun University, Changchun 130022, PR ChinaCollege of Materials Science and Engineering, Key Laboratory of Automobile Materials (Ministry of Education), Jilin University, Changchun 130022, PR China; Corresponding author.College of Materials Science and Engineering, Key Laboratory of Automobile Materials (Ministry of Education), Jilin University, Changchun 130022, PR ChinaCollege of Materials Science and Engineering, Key Laboratory of Automobile Materials (Ministry of Education), Jilin University, Changchun 130022, PR ChinaIn this study, open-cell Mg composite foams reinforced with in-situ Mg2Si were prepared. In order to refine the Mg2Si compound, the composite foams were co-modified with Y + Sb elements followed by solution heat treatment. The influences of complex modification and holding time of solution heat treatment on the microstructure and compressive properties of the composite foams were studied. The experimental results show that the morphology of Mg2Si is effectively changed by complex modification. The coarse dendritic primary Mg2Si (∼40 μm) is altered to the fine polygonal shape (∼10 μm); the coarse eutectic Mg2Si is transformed to a long rod or granular shape. Both compressive strength and energy absorption capacity of the composite foams are significantly increased. Additionally, with the increasing holding time of solution heat treatment, the eutectic Mg2Si undergoes obvious spheroidization, and the corner of the primary Mg2Si occurs passivation. Consequently, the compressive strength and energy absorption capacity are further improved.http://www.sciencedirect.com/science/article/pii/S223878542101142XMg foamMg2SiModificationHeat treatmentMicrostructureMechanical property |
| spellingShingle | J.A. Liu D. Song L.R. Zhang X.Z. Yang X.Y. Zhu W.B. Sun F.Y. Chen Microstructure and compressive properties of solution heat-treated magnesium-Mg2Si in-situ composite foams after complex modification Journal of Materials Research and Technology Mg foam Mg2Si Modification Heat treatment Microstructure Mechanical property |
| title | Microstructure and compressive properties of solution heat-treated magnesium-Mg2Si in-situ composite foams after complex modification |
| title_full | Microstructure and compressive properties of solution heat-treated magnesium-Mg2Si in-situ composite foams after complex modification |
| title_fullStr | Microstructure and compressive properties of solution heat-treated magnesium-Mg2Si in-situ composite foams after complex modification |
| title_full_unstemmed | Microstructure and compressive properties of solution heat-treated magnesium-Mg2Si in-situ composite foams after complex modification |
| title_short | Microstructure and compressive properties of solution heat-treated magnesium-Mg2Si in-situ composite foams after complex modification |
| title_sort | microstructure and compressive properties of solution heat treated magnesium mg2si in situ composite foams after complex modification |
| topic | Mg foam Mg2Si Modification Heat treatment Microstructure Mechanical property |
| url | http://www.sciencedirect.com/science/article/pii/S223878542101142X |
| work_keys_str_mv | AT jaliu microstructureandcompressivepropertiesofsolutionheattreatedmagnesiummg2siinsitucompositefoamsaftercomplexmodification AT dsong microstructureandcompressivepropertiesofsolutionheattreatedmagnesiummg2siinsitucompositefoamsaftercomplexmodification AT lrzhang microstructureandcompressivepropertiesofsolutionheattreatedmagnesiummg2siinsitucompositefoamsaftercomplexmodification AT xzyang microstructureandcompressivepropertiesofsolutionheattreatedmagnesiummg2siinsitucompositefoamsaftercomplexmodification AT xyzhu microstructureandcompressivepropertiesofsolutionheattreatedmagnesiummg2siinsitucompositefoamsaftercomplexmodification AT wbsun microstructureandcompressivepropertiesofsolutionheattreatedmagnesiummg2siinsitucompositefoamsaftercomplexmodification AT fychen microstructureandcompressivepropertiesofsolutionheattreatedmagnesiummg2siinsitucompositefoamsaftercomplexmodification |