Characterization of phases in Mg-10Y-5Gd-2Zn-0.5Zr alloy processed by heat treatment
来源期刊:中国有色金属学报(英文版)2010年第11期
论文作者:王渠东 高岩 尹冬弟 陈长江
文章页码:2076 - 2080
Key words:Mg-Y-Gd-Zn alloy; long-period stacking order; heat treatment
Abstract: Characterizations of phases in Mg-10%Y-5%Gd-2%Zn-0.5%Zr (WGZ1052) alloy during heat treatments were investigated by OM, XRD, SEM and EDS. The mechanisms of microstructure evolution were discussed. The results show that, after high temperature heat treatments, the Mg12ZnY phases still exist. During solution-treatment at 535℃, the amount of the long-period stacking order structures decreases. At 545 °C for 20 h and 24 h, there are still remnant Mg12ZnY compounds in the Mg matrix, the shape of which does not change and the amount does not decrease obviously.