Mg-Y-LPC合金组织和凝固行为的研究

Study on Microstructure and Solidification Behavior of Mg-Y-LPC Alloy

制备了1种稀土镁合金Mg-5.1Y-3.3LPC,并对其微观组织和凝固行为进行了研究。结果表明:稀土元素镧镨铈(LPC)主要富集在晶界处,且形成的稀土化合物沿晶界呈网状分布;而钇(Y)既存在于晶界上,又分布于镁基体内。

A rare earth magnesium alloy of Mg-5.1Y-3.3LPC was prepared, and the microstructure and solidification behavior of the alloy was investigated. The results show that the rare earth elements lanthanum, praseodymium and cerium （LPC） in the alloy are rich in grain boundary and form network rare earth compounds along the grain boundaries; whereas rare earth element yttrium （Y） lies in grain boundary and magnesium matrix.