Development of plastic Ti-based bulk-metallic-glass-matrix composites by controlling the microstructures

✍ Scribed by J.W. Qiao; J.T. Zhang; F. Jiang; Y. Zhang; P.K. Liaw; Y. Ren; G.L. Chen

• Publisher: Elsevier Science
• Year: 2010
• Tongue: English
• Weight: 967 KB
• Volume: 527
• Category: Article
• ISSN: 0921-5093
• DOI: 10.1016/j.msea.2010.08.055

✦ Synopsis

Lightweight and plastic Ti-based bulk-metallic-glass-matrix composites (BMGMCs) were fabricated by the Bridgman solidification. The ␤-Ti dendrites were uniformly distributed within the glass matrix. By tailoring the withdrawal velocity, v, the linear dependences of the spanning length, s, and the volume fraction, v f , of dendrites can be determined as: s = -30 v + 139 and v f = -12 v + 50, respectively. The plasticity of Ti-based BMGMCs was extensively studied in terms of the interdendrite spacing and the volume fraction of dendrites. An inverted U-shaped characteristic of the plasticity with the withdrawal velocity has been identified and explained. The present research gave a way for the design of plastic BMGMCs.