Abstract
Metal matrix nanocomposites (MMNCs) are emerging as lightweight but strong propositions with high specific strength and elastic modulus for specific design applications. In the present paper, single-crystal (GrNSs) and bi-crystalline graphene nanosheets (5|7GrNSs) were reinforced into titanium (Ti) matrices to investigate the mechanical and fracture characteristics of Ti-based MMNCs i.e. TiGrNCs and 5|7TiGrNCs, using molecular dynamics (MD). Based on our findings it can be observed that the use of GrNSs helps improve the strength of Ti in a significant manner. The results further demonstrate that the presence of grain boundaries (GBs) did not exert a significant impact on the mechanical properties of nanocomposites (NCs). Moreover, the presence of vacancies and grain boundaries did not deteriorate the mechanical properties of NCs in a deleterious manner. These outcomes will help in the development of NCs that are both lightweight and structurally stronger for the automotive, marine, and aerospace industries.
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