含钪超高强铝合金的研究现状及发展趋势  

Present Research and Developing Trends of Ultra High Strength Aluminium Alloys Contained Scandium Element

作　　者：戴晓元[1] 夏长清[1] 吴安如[1] 王杰文[1] 李杨勇[1] 

机构地区：[1]中南大学材料科学与工程学院

出　　处：《材料导报》2006年第5期104-107,共4页Materials Reports

基　　金：国家973项目(2005CB623706)

摘　　要：钪是优化铝合金性能最有效的微量元素,概述了钪对超高强铝合金组织性能的作用机理:细化铸态组织,阻碍再结晶,提高合金力学性能、焊接性能及抗应力腐蚀性能。结合国内外含钪铝合金的研究,指出了今后含钪超高强铝合金的发展趋势。Scandium is the most effective alloying element to optimize the property of aluminium alloys. The mechanism of effects of scandium element on ultra high strength aluminium alloys are fining cast microstructure, inhibiting recrystallization, enhancing mechanical property, improving welding property and stress-corrosion resistance. Based on domestic and overseas research on aluminium alloys contained scandium, the paper puts some suggestions for the future exporation of ultra high strength aluminium alloys.

关 键 词：SC 超高强铝合金 AL3SC 性能 显微组织 

分 类 号：TG146.21[一般工业技术—材料科学与工程] TG166.3[金属学及工艺—金属材料]