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

2010 
Abstract Lightweight and plastic Ti-based bulk-metallic-glass-matrix composites (BMGMCs) were fabricated by the Bridgman solidification. The β-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.
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