Improved strength and plasticity of magnesium matrix nanocomposites reinforced by carbonaceous nanoplatelets and micro-clusters
The uniform distribution of carbonaceous nanomaterials in a magnesium matrix composite can dramatically improve the strength without sacrificing ductility. In this work, graphene oxide (GO) reinforced AZ31 magnesium alloy matrix composites were fabricated using friction stir processing to achieve hi...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-11-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785422016222 |
| _version_ | 1828090126329184256 |
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| author | M. Tahaghoghi A. Zarei-Hanzaki M.S. Jalali H.R. Abedi |
| author_facet | M. Tahaghoghi A. Zarei-Hanzaki M.S. Jalali H.R. Abedi |
| author_sort | M. Tahaghoghi |
| collection | DOAJ |
| description | The uniform distribution of carbonaceous nanomaterials in a magnesium matrix composite can dramatically improve the strength without sacrificing ductility. In this work, graphene oxide (GO) reinforced AZ31 magnesium alloy matrix composites were fabricated using friction stir processing to achieve higher strength, toughness, and plasticity compared with the unreinforced condition. The composite microstructure consisted of individual GO nanoplatelets and GO micro-clusters, having different effects on the deformation behavior of the matrix. Texture analysis revealed that adding GO led to the activation of different twin types and variants during tensile deformation. In contrast, only one extension twin variant was dominant in the case of the unreinforced condition. In spite of the GO micro-clusters, the individual GO nanoplatelets cannot hinder the growth of twins. The GO micro-clusters inhibit twin growth, change the stress state in the parent grains, and provide a driving force for twin nucleation. The extensive twinning occurrence was followed by twin intersections and significantly enhanced the plasticity of the alloy by providing easy orientations for further basal slip. |
| first_indexed | 2024-04-11T05:52:19Z |
| format | Article |
| id | doaj.art-78605f3299ce4654a6f3ddf89ea29a9b |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-11T05:52:19Z |
| publishDate | 2022-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-78605f3299ce4654a6f3ddf89ea29a9b2022-12-22T04:42:01ZengElsevierJournal of Materials Research and Technology2238-78542022-11-012127972814Improved strength and plasticity of magnesium matrix nanocomposites reinforced by carbonaceous nanoplatelets and micro-clustersM. Tahaghoghi0A. Zarei-Hanzaki1M.S. Jalali2H.R. Abedi3Hot Deformation and Thermomechanical Processing Laboratory of High-Performance Engineering Materials, School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, IranHot Deformation and Thermomechanical Processing Laboratory of High-Performance Engineering Materials, School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran; Corresponding author.Hot Deformation and Thermomechanical Processing Laboratory of High-Performance Engineering Materials, School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, IranSchool of Metallurgy & Materials Engineering, Iran University of Science and Technology (IUST), Tehran, Iran; Corresponding author.The uniform distribution of carbonaceous nanomaterials in a magnesium matrix composite can dramatically improve the strength without sacrificing ductility. In this work, graphene oxide (GO) reinforced AZ31 magnesium alloy matrix composites were fabricated using friction stir processing to achieve higher strength, toughness, and plasticity compared with the unreinforced condition. The composite microstructure consisted of individual GO nanoplatelets and GO micro-clusters, having different effects on the deformation behavior of the matrix. Texture analysis revealed that adding GO led to the activation of different twin types and variants during tensile deformation. In contrast, only one extension twin variant was dominant in the case of the unreinforced condition. In spite of the GO micro-clusters, the individual GO nanoplatelets cannot hinder the growth of twins. The GO micro-clusters inhibit twin growth, change the stress state in the parent grains, and provide a driving force for twin nucleation. The extensive twinning occurrence was followed by twin intersections and significantly enhanced the plasticity of the alloy by providing easy orientations for further basal slip.http://www.sciencedirect.com/science/article/pii/S2238785422016222GrapheneMagnesium compositeCarbonaceous nanomaterialsMechanical propertiesMicrostructure |
| spellingShingle | M. Tahaghoghi A. Zarei-Hanzaki M.S. Jalali H.R. Abedi Improved strength and plasticity of magnesium matrix nanocomposites reinforced by carbonaceous nanoplatelets and micro-clusters Journal of Materials Research and Technology Graphene Magnesium composite Carbonaceous nanomaterials Mechanical properties Microstructure |
| title | Improved strength and plasticity of magnesium matrix nanocomposites reinforced by carbonaceous nanoplatelets and micro-clusters |
| title_full | Improved strength and plasticity of magnesium matrix nanocomposites reinforced by carbonaceous nanoplatelets and micro-clusters |
| title_fullStr | Improved strength and plasticity of magnesium matrix nanocomposites reinforced by carbonaceous nanoplatelets and micro-clusters |
| title_full_unstemmed | Improved strength and plasticity of magnesium matrix nanocomposites reinforced by carbonaceous nanoplatelets and micro-clusters |
| title_short | Improved strength and plasticity of magnesium matrix nanocomposites reinforced by carbonaceous nanoplatelets and micro-clusters |
| title_sort | improved strength and plasticity of magnesium matrix nanocomposites reinforced by carbonaceous nanoplatelets and micro clusters |
| topic | Graphene Magnesium composite Carbonaceous nanomaterials Mechanical properties Microstructure |
| url | http://www.sciencedirect.com/science/article/pii/S2238785422016222 |
| work_keys_str_mv | AT mtahaghoghi improvedstrengthandplasticityofmagnesiummatrixnanocompositesreinforcedbycarbonaceousnanoplateletsandmicroclusters AT azareihanzaki improvedstrengthandplasticityofmagnesiummatrixnanocompositesreinforcedbycarbonaceousnanoplateletsandmicroclusters AT msjalali improvedstrengthandplasticityofmagnesiummatrixnanocompositesreinforcedbycarbonaceousnanoplateletsandmicroclusters AT hrabedi improvedstrengthandplasticityofmagnesiummatrixnanocompositesreinforcedbycarbonaceousnanoplateletsandmicroclusters |