Development on research of advanced rare-earth aluminum alloy
来源期刊：中国有色金属学报(英文版)2003年第3期
论文作者：聂祚仁 金头男 邹景霞 付静波 杨军军 左铁镛
文章页码：509 - 514
Key words：aluminum alloy; rare earth; erbium; scandium; misch metal; Al3Er
Abstract: The active mechanisms of rare earth element erbium ( Er ) in part of aluminum alloys were investigated. Based on the investigation of the effect of the unitary rare earth elements (Er, La, Y, Ce, Nd, Gd, and Sc) and the transition element zirconium on the aluminum alloys, it is concluded that, with Er alloyed, high purity aluminum and Al-Mg alloys are featured with refined grain structure, superior heat stability and even higher hardness or tensile strength with unchanged ductility; but Er is not beneficial to the mechanical property of Al-Cu alloy, so is Sc. It may also be concluded, to most of the aluminum alloys, Er can be an effective alloying element, like Sc; and for the lower price of Er, the cost of modifying aluminum alloys by Er will be reduced.
基金信息：the National Key Fundamental Research and Development Program of China
