喷射沉积Al-Fe-V-Si系耐热铝合金制备工艺的研究  

Study on Preparation Process of Spray Deposited Al-Fe-V-Si System Aluminum Alloy

作　　者：詹孝军[1] 黎文献[1] 谭敦强[1] 王日初[1] 丁荣辉[1] 

机构地区：[1]中南大学材料科学与工程学院,湖南长沙410083

出　　处：《铝加工》2004年第3期15-18,24,共5页Aluminium Fabrication

基　　金：国家重点基础规划项目 ( G19990 64 90 0)

摘　　要：采用两种不同喷嘴喷射沉积制备了 Al- Fe- V- Si系耐热铝合金 ,并对沉积坯件的热挤压工艺进行了优化 ,对材　　料的组织和性能进行了比较。结果表明 :采用做扫描运动的非约束式复合喷嘴和 G/ M为 4 .3米喷射沉积 ,沉积坯件具有良好的成形性和高达 93%的致密度 ,通过随后的热挤压可使材料十分接近全致密 ,其室温下的挤压棒材σb达 5High temperature Al-Fe-V-Si system aluminum alloy was prepared by spray deposition methods with two different jets, and the hot extrusion process for deposited pieces was optimized.A comparison was carried out between the material structures and properties.It was showed that the deposited pieces prepared by complex jet had good formability and higher compactibility of 93%at G/M of 4.3 .The materials subjected to the subsequent hot extrusion almost reach to full compactness and σ b of the extruded rod is up to 538 MPa at room temperature,.

关 键 词：喷射沉积 耐热铝合金 力学性能 快速凝固 

分 类 号：TG249[金属学及工艺—铸造]