articleNature CommunicationsJun 6, 2022GOLD OA

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

University of Science and Technology of China · Chinese Academy of Sciences · +7 more institutions

PubMed
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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…

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