Effects of annealing temperature on microstructure and hardness of (Cu_(60)Zr_(30)Ti_(10))_(98)Y_2 bulk metallic glass  

作　　者：查桂兰 章爱生 

机构地区：[1]School of Materials Science and Engineering,Nanchang University

出　　处：《Journal of Rare Earths》2010年第2期243-245,共3页稀土学报（英文版）

摘　　要：(Cu60Zr30Ti10)98Y2 bulk metallic glass(Φ4 mm×70 mm) was obtained successfully by copper mould cooling and spraying-casting,and some samples were isothermally annealed at temperatures of 473 and 623 K,which was lower than the glass transition temperature(Tg) for 1 h.Microstructure and properties of as-cast and annealed samples were studied.Crystallization phases(Cu10Zr7 and CuZr) were observed in annealed samples,and the species and fraction of these phases increased with increasing annealing temperature.Mic...(Cu60Zr30Ti10)98Y2 bulk metallic glass(Φ4 mm×70 mm) was obtained successfully by copper mould cooling and spraying-casting,and some samples were isothermally annealed at temperatures of 473 and 623 K,which was lower than the glass transition temperature(Tg) for 1 h.Microstructure and properties of as-cast and annealed samples were studied.Crystallization phases(Cu10Zr7 and CuZr) were observed in annealed samples,and the species and fraction of these phases increased with increasing annealing temperature.Mic...

关 键 词：Cu-based BMG annealing temperature MICROHARDNESS rare earths 

分 类 号：TG156.2[金属学及工艺—热处理]