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采用渗流铸造法制备出了钨丝增强ZrAlNiCuSi块体非晶复合材料,在压缩条件下复合材料表现出弹性-完全塑性的应力-应变行为,和未复合的大块非晶相比,总应变量提高600%以上.非晶复合材料塑性提高的原因是钨丝阻碍了非晶基体剪切带的滑移,诱发多个剪切带的产生,同时滑移的面积增大的结果.复合材料的破坏方式与钨丝体积分数有关,在体积分数小于40%时一般为剪切破坏,大于60%时为纵向劈裂破坏,介于(40-60)%之间时,在钨丝与界面结合良好的情况下,趋于剪切破坏,否则为劈裂的破坏方式.
The tungsten-reinforced ZrAlNiCuSi bulk amorphous composite was prepared by the seepage casting method. The composite showed elastic-complete plastic stress-strain behavior under compressive conditions. Compared with the non-composite bulk amorphous alloy, the total strain Increased by more than 600% .The reason for the plasticity of the amorphous composite material is that the tungsten wire hinders the slip of the amorphous matrix shear band, induces the generation of multiple shear bands and increases the area of slippage. The failure mode is related to the volume fraction of tungsten filament, and generally is shear failure when the volume fraction is less than 40%, and longitudinal splitting failure when the volume fraction is less than 40%. When it is between (40-60)%, In good condition, tend to shear damage, or the destruction of the splitting.