为开发制备高性能Al Fe V Si耐热铝合金的新型工艺 ,研究了用多层喷射沉积制备该合金管坯的规律 ,探讨了熔体温度、雾化气压、喷射高度等工艺参数对管坯组织结构的影响 .研究结果表明 ,通过工艺优化可以制备性能优异的耐热铝合金管坯 .挤压加工后的性能为 :在 2 5℃ ,σb =44 9MPa ,δ =7.6 % ;在 35 0℃ ,σb =1 85MPa ,δ =6 .0 % .这与用粉末冶金方法制备的相近 ,且明显高于用传统喷射沉积工艺制备的该材料性能 . In order to develop a new process for preparing high-performance Al Fe V Si heat-resistant aluminum alloy, the law of preparing the alloy tube by multi-layer spray deposition was studied. The effects of melt temperature, atomizing pressure, The results show that the heat-resistant aluminum alloy tube with excellent performance can be prepared through the process optimization.The properties after extrusion are as follows: σb = 449MPa, δ = 7.6% at 25 ℃; ° C, σb = 1 85MPa, δ = 6.0% This is similar to that prepared by the powder metallurgy method and is significantly higher than that of the material prepared by the conventional spray deposition process.