Journal
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
Volume 156, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2022.106892
Keywords
A; Metal-matrix composites (MMCs); B; Mechanical properties; C; Micro-mechanics; E; Sintering
Funding
- China Postdoctoral Science Foundation [2020 M670154]
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By employing a cocklebur-inspired nanoengineering method, the strain-hardening capacity of GNPs/Ti composites is enhanced through the design of a three-dimensional (3D) interface structure.
Graphene nanoplatelets reinforced titanium matrix (GNPs/Ti) composites usually exhibit high strength but have low uniform elongation. Such limited mechanical properties are not suitable for the structural applications and is dangerous during service. In this study, a cocklebur-inspired nanoengineering was employed for the threedimensional (3D) interface design in GNPs reinforced Ti composites (contained trace TiB whiskers, abbreviated as GNPs-(TiBw)/Ti). The enhanced strain-hardening capacity of GNPs-(TiBw)/Ti composites were attributed to the superior interfacial strain accommodation, the stiffened interfacial shear resistance and the toughened TiC layers. This work distinguishes itself from previous studies of GNPs/Ti composites by emphasizing the role of 3D interface structure for regaining the strain-hardening capacity of nanostructured composites.
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