Manage local deformation by patterning structural heterogeneity: Controlling toughness in honeycomb patterned metallic glass composites
Shear band dominated strong strain localization is known for causing brittleness in metallic glasses. By pre-patterning glassy regions with different mechanical properties in the geometry of a honeycomb lattice, we show that the brittleness can be alleviated or even eradicated. The underlying mechan...
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Elsevier
2025-05-01
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| Series: | Materials & Design |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127525002667 |
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| author | Yongwei Wang Guang-ping Zheng Mo Li |
| author_facet | Yongwei Wang Guang-ping Zheng Mo Li |
| author_sort | Yongwei Wang |
| collection | DOAJ |
| description | Shear band dominated strong strain localization is known for causing brittleness in metallic glasses. By pre-patterning glassy regions with different mechanical properties in the geometry of a honeycomb lattice, we show that the brittleness can be alleviated or even eradicated. The underlying mechanisms in this new design of composite with structural heterogeneity relate to the new microstructure parameters such as the width and the mechanical properties of the patterned regions. The optimal toughness can be achieved through redistributing the heterogeneous structural components such that the local shear is distributed heterogeneously during deformation. This finding points to a new design principle for toughening metallic glass composites that have been synthesized by far in ad hoc fashion by dispersing inclusions randomly. |
| format | Article |
| id | doaj-art-86637cb71f034881b43b5777dea3b33a |
| institution | OA Journals |
| issn | 0264-1275 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj-art-86637cb71f034881b43b5777dea3b33a2025-08-20T02:17:33ZengElsevierMaterials & Design0264-12752025-05-0125311384610.1016/j.matdes.2025.113846Manage local deformation by patterning structural heterogeneity: Controlling toughness in honeycomb patterned metallic glass compositesYongwei Wang0Guang-ping Zheng1Mo Li2Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing 100083, ChinaDepartment of Mechanical Engineering, Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, ChinaSchool of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, United States; Corresponding author.Shear band dominated strong strain localization is known for causing brittleness in metallic glasses. By pre-patterning glassy regions with different mechanical properties in the geometry of a honeycomb lattice, we show that the brittleness can be alleviated or even eradicated. The underlying mechanisms in this new design of composite with structural heterogeneity relate to the new microstructure parameters such as the width and the mechanical properties of the patterned regions. The optimal toughness can be achieved through redistributing the heterogeneous structural components such that the local shear is distributed heterogeneously during deformation. This finding points to a new design principle for toughening metallic glass composites that have been synthesized by far in ad hoc fashion by dispersing inclusions randomly.http://www.sciencedirect.com/science/article/pii/S0264127525002667Metallic glassCompositeMechanical propertiesToughnessWork hardening |
| spellingShingle | Yongwei Wang Guang-ping Zheng Mo Li Manage local deformation by patterning structural heterogeneity: Controlling toughness in honeycomb patterned metallic glass composites Materials & Design Metallic glass Composite Mechanical properties Toughness Work hardening |
| title | Manage local deformation by patterning structural heterogeneity: Controlling toughness in honeycomb patterned metallic glass composites |
| title_full | Manage local deformation by patterning structural heterogeneity: Controlling toughness in honeycomb patterned metallic glass composites |
| title_fullStr | Manage local deformation by patterning structural heterogeneity: Controlling toughness in honeycomb patterned metallic glass composites |
| title_full_unstemmed | Manage local deformation by patterning structural heterogeneity: Controlling toughness in honeycomb patterned metallic glass composites |
| title_short | Manage local deformation by patterning structural heterogeneity: Controlling toughness in honeycomb patterned metallic glass composites |
| title_sort | manage local deformation by patterning structural heterogeneity controlling toughness in honeycomb patterned metallic glass composites |
| topic | Metallic glass Composite Mechanical properties Toughness Work hardening |
| url | http://www.sciencedirect.com/science/article/pii/S0264127525002667 |
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