(华南理工大学 机电工程学院， 广州 510640)
摘 要: 提出了一种制备梯度材料的双流浇注连续铸造新方法，采用该方法在自制的半连续铸造装置上进行了AlCu/Al梯度合金的探索试验。分析了制备合金的组织和性能特点。结果说明：采用半连续铸造方法在Al-Cu系合金中可以实现合金成分随铸件横截面的连续梯度变化； 合金的成分、显微组织和力学性能之间有较好的对应关系。
关键字: 半连续铸造; AlCu/Al；梯度材料
semi-continuous casting
（School of Mechano-eletronic Engineering,
South China University of Technology, Guangzhou 510640, China）
Abstract:A method of producing gradient material by continuous casting using double-stream-pouring technique was proposed. An experimental study of AlCu/Al gradient material was carried out on self-made semi-continuous apparatus. The microstructure and property of the alloy was analyzed. The results show that the continuous gradient distribution in composition across the cross section of the ingot can be realized in Al-Cu alloy system using the proposed method, and the microstructure, Rockwell hardness and the composition of the alloy are in good accordance with each other.
Key words: semi-continuous casting；AlCu/Al；gradient material
