中文摘要：

通过不同退火工艺分别制备出了含内生晶相的Cu46Zr46Al8非晶复合材料,并研究了其显微组织及室温压缩性能。结果表明,在淬火态非晶复合材料的晶化组织中出现了亚稳初生相与共晶共存的形态,这种组织形态是导致其力学能大幅度降低的主要原因。通过控制退火工艺在Cu46Zr46Al8非晶中内生出不同形态和尺寸的晶体相。枝晶臂细且长的树枝晶对材料的强度有较大的危害作用,而细小的胞状初生相晶粒则对材料的强度提高有一定的作用。

英文摘要：

Cu46 Zr46 Al8 bulk metallic-glass （BMG） matrix composites containing endogenic crystal phases were obtained by different annealing processes,and microstructure and compressive properties of the materials were investigated.The results show that a mixed microstructure of primary metastable phase and eutectic structure in the as quenched bulk metallic-glass matrix composites forms due to the lower cooling rate of quenching,leading to the declining of mechanical properties of the composites.Crystal phases with different shape and size are presented in the BMG by controlling annealing process.The slender dendrite grain deteriorates compressive properties of the Cu46 Zr46 Al8 BMG,while the fine cell grain is beneficial to its compressive properties.