Application of semisolid process to Zr-based metallic glass matrix composites
The effect of the cooling slope on the structure of Zr-based metallic glass matrix composites was investigated by changing the cooling slope. The synthesis of bulk metallic glass composites was made by a process combining cooling slope casting and Cu mold casting for Zr66.4Nb6.4Cu10.5Ni8.7Al8 alloys. The results show that the semisolid slurry which consists of the spheroidal or rosette-type BCC crystals and the liquid phase which forms metallic glass phase can be formed by the cooling slope process in this alloy system. However, the semisolid slurry cannot reach to the mold. It is considered that higher viscosity of the liquid phase which forms metallic glass phase causes this result. Thus, parameters of the cooling slope have to be examined further.
semisolid processing bulk metallic glass composite crystal particle cooling slope casting
T.TAMURA A. MAKAYA K.MIWA
Solidification Processing Group, Materials Research Institute for Sustainable Development, National Institute of Advanced Industrial Science and Technology(AIST), Nagoya 463-8560, Japan
国际会议
北京
英文
719-722
2010-09-16（万方平台首次上网日期，不代表论文的发表时间）