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用加压铸造法制取Al2 O3 SiO2 系纤维增强ZL10 9合金复合材料 ,研究了在不同温度和不同试验应力下复合材料和ZL10 9合金的高温蠕变特性。结果表明 :经纤维增强的复合材料 ,在5 73K下的蠕变极限强度是ZL10 9合金的 1 2倍 ,在 673K的蠕变极限强度是Z10 9合金的 4倍 ,但复合材料的蠕变断裂具有突发性。
Al2 O3 SiO2 fiber reinforced ZL109 alloy composite was prepared by compression casting method. The creep characteristics of the composite and ZL109 alloy at different temperatures and different test stresses were studied. The results show that the creep ultimate strength of the fiber reinforced composite is 12 times higher than that of the ZL109 alloy at 573K, and the ultimate tensile strength at 673K is four times that of the Z109 alloy. However, the creep rupture With a sudden.