Development and Fabrication of Biocompatible Ti-Based Bulk Metallic Glass Matrix Composites for Additive Manufacturing

• Published in: Materials Vol. 16; no. 17; p. 5935
• Main Authors: Chen, Po-Sung, Tsai, Pei-Hua, Li, Tsung-Hsiung, Jang, Jason Shian-Ching, Huang, Jacob Chih-Ching, Lin, Che-Hsin, Pan, Cheng-Tang, Lin, Hsuan-Kai
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 30.08.2023; MDPI
• Subjects: 3D printing; Additive manufacturing; Amorphous materials; Atomizing; Biocompatibility; Bone surgery; Composite materials industry; Computer-aided design; Glass; Glass matrix composites; Laser beam melting; Lasers; Manufacturing; Mechanical properties; Metallic glasses; Microscopy; Particle size; Powder metallurgy; Powders; Production processes; Recovery (Medical); Spherical powders; Temperature; Titanium; Titanium alloys; Transplants & implants; United Kingdom; Germany; Taiwan; United States > US; Japan
• ISSN: 1996-1944; 1996-1944
• DOI: 10.3390/ma16175935

Ti-based metallic glasses have a high potential for implant applications. The feasibility of a new biocompatible Ti-based bulk metallic glass composite for selective laser melting (SLM) had been examined. Therefore, it is necessary to design a high-glass-forming-ability Ti-based metallic glass (∆Tx = 81 K, γ = 0.427, γm = 0.763), to fabricate a partial glass-formable spherical powder (the volume fraction of the amorphous phase in the atomized Ti-based powders being 73% [size < 25 μm], 61% [25–37 μm], and 50% [37–44 μm]), and establish an SLM parameter (a scan rate of 600 mm/s, a power of 120 W, and an overlap of 10%). The Ti42Zr35Si5Co12.5Sn2.5Ta3 bulk metallic glass composite was successfully fabricated through SLM. This study demonstrates that the TiZrSiCoSnTa system constitutes a promising basis for the additive manufacturing process in terms of preparing biocompatible metallic glass composites into complicated graded foam shapes.