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3D printing of Fe-based bulk metallic glasses and composites with large dimensions and enhanced toughness by thermal spraying

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Abstract

Large sized Fe-based bulk metallic glasses (BMGs) and BMG/stainless steel (SS) composites with excellent mechanical properties were successfully fabricated using a thermal spray three-dimensional (3D) printing (TS3DP) technique. The 3D-printed BMG and BMGC (reinforced with 50% SS powder) parts exhibited high fracture strength (∼2 GPa) and fairly good fracture toughness (13–21 MPa m1/2, which is 200–400% greater than that of the as-cast BMG of the same composition). The enhanced fracture toughness originates from the intrinsically layered structure of the 3D-printed BMG components, which caused crack deflection and thus the increase of energy dissipation during crack propagation. The TS3DP technique developed in this work opens up a new avenue for the production of BMGs and BMG composites of theoretically limitless size, and facilitates their application as structural and functional materials.

Graphical abstract: 3D printing of Fe-based bulk metallic glasses and composites with large dimensions and enhanced toughness by thermal spraying

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Publication details

The article was received on 12 Jan 2018, accepted on 20 Mar 2018 and first published on 20 Mar 2018


Article type: Communication
DOI: 10.1039/C8TA00405F
Citation: J. Mater. Chem. A, 2018, Advance Article
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    3D printing of Fe-based bulk metallic glasses and composites with large dimensions and enhanced toughness by thermal spraying

    C. Zhang, W. Wang, Y. Li, Y. Yang, Y. Wu and L. Liu, J. Mater. Chem. A, 2018, Advance Article , DOI: 10.1039/C8TA00405F

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