Mechanical property dependence on compositional heterogeneity in Co-P metallic nanoglasses
Abstract The glass–glass interfaces (GGIs) are in a unique glass phase, while current knowledge on the interfacial phase has not completely established to explain the unprecedented improvements in the ductility of metallic nanoglasses (NGs). In this work, Co–P NGs prepared through the pulse electrod...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-03-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-024-58247-9 |
| _version_ | 1797233629142712320 |
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| author | Tian Li Nana Li Shengming Zhang Guangping Zheng |
| author_facet | Tian Li Nana Li Shengming Zhang Guangping Zheng |
| author_sort | Tian Li |
| collection | DOAJ |
| description | Abstract The glass–glass interfaces (GGIs) are in a unique glass phase, while current knowledge on the interfacial phase has not completely established to explain the unprecedented improvements in the ductility of metallic nanoglasses (NGs). In this work, Co–P NGs prepared through the pulse electrodeposition are investigated, whose GGI regions clearly show elemental segregation with chemical composition dominated by element Co. Such compositional heterogeneity is further verified by molecular dynamics (MD) simulation on the formation of GGIs in Co-P NGs and atomic structures of GGIs with Co segregation are found to be less dense than those of glassy grains. More importantly, Co segregation at GGIs is closely related to the improved ductility observed in Co-P NGs, as demonstrated by nanoindentation measurements and MD simulations. This work facilitates the understanding on the relations between compositional heterogeneity and improved ductility as observed in Co-P NGs, and thus opens a new window for controlling the mechanical properties of NGs through GGI engineering. |
| first_indexed | 2024-04-24T16:19:12Z |
| format | Article |
| id | doaj.art-e87b06d871e44b2baa605379e9a08665 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-24T16:19:12Z |
| publishDate | 2024-03-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-e87b06d871e44b2baa605379e9a086652024-03-31T11:17:55ZengNature PortfolioScientific Reports2045-23222024-03-0114111010.1038/s41598-024-58247-9Mechanical property dependence on compositional heterogeneity in Co-P metallic nanoglassesTian Li0Nana Li1Shengming Zhang2Guangping Zheng3CDGM Glass Co., Ltd.CDGM Glass Co., Ltd.Chengdu Guangming Paite Precious Metal Co., Ltd.Department of Mechanical Engineering, The Hong Kong Polytechnic UniversityAbstract The glass–glass interfaces (GGIs) are in a unique glass phase, while current knowledge on the interfacial phase has not completely established to explain the unprecedented improvements in the ductility of metallic nanoglasses (NGs). In this work, Co–P NGs prepared through the pulse electrodeposition are investigated, whose GGI regions clearly show elemental segregation with chemical composition dominated by element Co. Such compositional heterogeneity is further verified by molecular dynamics (MD) simulation on the formation of GGIs in Co-P NGs and atomic structures of GGIs with Co segregation are found to be less dense than those of glassy grains. More importantly, Co segregation at GGIs is closely related to the improved ductility observed in Co-P NGs, as demonstrated by nanoindentation measurements and MD simulations. This work facilitates the understanding on the relations between compositional heterogeneity and improved ductility as observed in Co-P NGs, and thus opens a new window for controlling the mechanical properties of NGs through GGI engineering.https://doi.org/10.1038/s41598-024-58247-9Metallic nanoglassesGlass–glass interfacesPlastic deformationMolecular dynamicsNanoindentation |
| spellingShingle | Tian Li Nana Li Shengming Zhang Guangping Zheng Mechanical property dependence on compositional heterogeneity in Co-P metallic nanoglasses Scientific Reports Metallic nanoglasses Glass–glass interfaces Plastic deformation Molecular dynamics Nanoindentation |
| title | Mechanical property dependence on compositional heterogeneity in Co-P metallic nanoglasses |
| title_full | Mechanical property dependence on compositional heterogeneity in Co-P metallic nanoglasses |
| title_fullStr | Mechanical property dependence on compositional heterogeneity in Co-P metallic nanoglasses |
| title_full_unstemmed | Mechanical property dependence on compositional heterogeneity in Co-P metallic nanoglasses |
| title_short | Mechanical property dependence on compositional heterogeneity in Co-P metallic nanoglasses |
| title_sort | mechanical property dependence on compositional heterogeneity in co p metallic nanoglasses |
| topic | Metallic nanoglasses Glass–glass interfaces Plastic deformation Molecular dynamics Nanoindentation |
| url | https://doi.org/10.1038/s41598-024-58247-9 |
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