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

Po-Sung Chen1, Pei-Hua Tsai1, Tsung-Hsiung Li1

  • 1Institute of Materials Science and Engineering, National Central University, Taoyuan 32001, Taiwan.

Materials (Basel, Switzerland)
|September 9, 2023
PubMed
Summary

This study explores biocompatible titanium-based metallic glass composites for additive manufacturing. Selective laser melting successfully fabricated a novel TiZrSiCoSnTa composite, showing promise for implant applications.

Keywords:
additive manufacturing (AM)biocompatiblemetallic glass (MG)selective laser melting (SLM)

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Area of Science:

  • Materials Science
  • Biomedical Engineering
  • Additive Manufacturing

Background:

  • Titanium (Ti)-based metallic glasses show significant potential for biomedical implant applications.
  • Developing biocompatible Ti-based bulk metallic glass composites for additive manufacturing is crucial for advanced implant designs.

Purpose of the Study:

  • To investigate the feasibility of a novel biocompatible Ti-based bulk metallic glass composite for selective laser melting (SLM).
  • To design a Ti-based metallic glass with high glass-forming ability and fabricate powders suitable for SLM.
  • To establish optimal SLM parameters for fabricating the Ti-based metallic glass composite.

Main Methods:

  • Designed a high-glass-forming-ability Ti-based metallic glass with specific thermal properties (ΔT = 81 K, γ = 0.427, γm = 0.763).
  • Fabricated partially glass-forming spherical powders with varying amorphous phase fractions.
  • Optimized SLM parameters including scan rate (600 mm/s), power (120 W), and overlap (10%).

Main Results:

  • Successfully fabricated the Ti42Zr35Si5Co12.5Sn2.5Ta3 bulk metallic glass composite using SLM.
  • Demonstrated the viability of the TiZrSiCoSnTa system for additive manufacturing processes.
  • Achieved fabrication of complex graded foam shapes with the metallic glass composite.

Conclusions:

  • The TiZrSiCoSnTa system is a promising material for additive manufacturing of biocompatible metallic glass composites.
  • SLM is a viable technique for producing complex implant structures from this novel material.
  • This research paves the way for advanced biocompatible implants with tailored shapes and properties.