【摘要】 测试了Al3Ti/ZL101原位复合材料的流动性、线收缩率、热裂倾向及铸造应力,分析了影响铸造性能的各种因素。结果表明:Al3Ti/ZL101原位复合材料的热裂抗力较基体材料大、线收缩率较基体材料小、铸造应力略大于基体材料;在780℃以下,Al3Ti/ZL101原位复合材料的流动性优于基体材料。对Al3Ti/ZL101原位复合材料采用同基体材料相同的铸造工艺即能满足生产要求。更多还原

【Abstract】 The casting fluidity,ratio of line contraction,casting stress and heat crack tendency were tested.The factors of influence casting properties were also analyzed.The results show that the resistance of heat crack of Al₃Ti/ZL101 in situ composite is higher than that of matrix material; the ratio of line contraction is shorter than that of matrix material and the casting stress is heaver than that of matrix material;the casting fluidity of in situ composite is better than that of matrix material below 780℃.The casting technology of in situ composite is as same as than that of matrix material.更多还原