3D printing of Fe-based bulk metallic glasses and composites with large dimensions and enhanced toughness by thermal spraying. Issue 16 (10th April 2018)

• Record Type: Journal Article
• Authors: Zhang, Cheng; Wang, Wei; Li, Yi-Cheng; Yang, Yan-Ge; Wu, Yue; Liu, Lin
• Is Part Of: Journal of materials chemistry. Volume 6:Issue 16(2018)
• Page Start: 6800
• Page End: 6805
• Publication Date: 2018-04-10
• Subjects: Materials -- Research -- Periodicals; Chemistry, Analytic -- Periodicals; Environmental sciences -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c8ta00405f
• Languages: English
• ISSNs: 2050-7488

Abstract

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. 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 m 1/2, 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.