综述了定向凝固NiAl-Cr(Mo)共晶自生复合材料的凝固组织特征和力学性能,探讨了添加微量元素如Hf、Ti和H0等对复合材料组织和力学性能的影响.就目前合金在实际应用中的不足之处提出了改进方法,如提高温度梯度和改变合金成分,试图制备含大体积分数强化相的细密、连续、规则的层片组织以提高其综合力学性能.
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