Effects of heat treatments on microstructure and mechanical properties of Mg-15Gd-5Y-0.5Zr alloy
来源期刊：Journal of Rare Earths2008年第2期
论文作者：高岩 王渠东 顾金海 赵阳 童炎 Junya Kaneda
文章页码：298 - 302
摘 要：Microstructure and mechanical properties of Mg-15wt.%Gd-5 wt.%Y-0.5wt.% Zr alloy were investigated in a series of conditions. The eutectic was dissolved into the matrix and there was no evident grain growth after solutionized at 525 °C for 12 h. The evolution of the phase constituents from as-cast to cast-T4 was as follows: α-Mg solid solution+Mg5（Gd,Y） eutectic compound→α-Mg solid solution+ spheroidized Mg5（Gd, Y） phase→α-Mg supersaturated solid solution+cuboid-shaped compound （Mg2Y3Gd2）. And the precipitation se- quences of Mg-15Gd-5Y-0.5Zr alloy were observed, according to the hardness response to isothermal ageing at 225-300 °C for 0-128 h.
高岩，王渠东，顾金海，赵阳，童炎，Junya Kaneda
摘 要：Microstructure and mechanical properties of Mg-15wt.%Gd-5 wt.%Y-0.5wt.% Zr alloy were investigated in a series of conditions. The eutectic was dissolved into the matrix and there was no evident grain growth after solutionized at 525 °C for 12 h. The evolution of the phase constituents from as-cast to cast-T4 was as follows: α-Mg solid solution+Mg5（Gd,Y） eutectic compound→α-Mg solid solution+ spheroidized Mg5（Gd, Y） phase→α-Mg supersaturated solid solution+cuboid-shaped compound （Mg2Y3Gd2）. And the precipitation se- quences of Mg-15Gd-5Y-0.5Zr alloy were observed, according to the hardness response to isothermal ageing at 225-300 °C for 0-128 h.
关键词：
