On the damage tolerance of 3-D printed Mg-Ti interpenetrating-phase composites with bioinspired architectures.

ABSTRACT: Bioinspired architectures are effective in enhancing the mechanical properties of materials, yet are difficult to construct in metallic systems. The structure-property relationships of bioinspired metallic composites also remain unclear. Here, Mg-Ti composites were fabricated by pressureless infiltrating pure Mg melt into three-dimensional (3-D) printed Ti-6Al-4V scaffolds. The result was composite materials where the constituents are continuous, mutually interpenetrated in 3-D space and exhibit specific spatial arrangements with bioinspired brick-and-mortar, Bouligand, and crossed-lamellar architectures. These architectures promote effective stress transfer, delocalize damage and arrest cracking, thereby bestowing improved strength and ductility than composites with discrete reinforcement

SUBMITTER: Zhang M 

PROVIDER: S-EPMC9170714 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature