Isothermal section of Mg-Zn-La system in Mg-rich corner at 400 ℃
Alloys with different compositions in Mg-rich corner of Mg-Zn-La system at 400 ℃ were prepared,the phase equilibrium in the Mg-rich corner of Mg-Zn-La system was determined by scanning electron microscopy(SEM),electron probe microanalysis based on energy dispersive X-ray spectroscopy (EPMA-EDS) and X-ray diffraction(XRD),and the isothermal section at 400 ℃ was established.The results show that there exists a ternary compound (T-phase) with a constant La content and changable Mg/Zn contents in the Mg-Zn-La system.The mole fraction of La in T-phase is about 8％,and that of Zn is from 16％ to 43％.There exist a two-phase equilibrium which consists of T-phase plus hcp-Mg and a three-phase equilibrium which is composed of T-phase,hcp-Mg and a liquid phase (L-phase) at 400 .The L ℃ -phase consists of 70％ Mg,30％ Zn and is free of La.
Mg-Zn-La system isothermal section T-phase phase equilibrium
HUANG Ming-li LI Hong-xiao REN Yu-ping DING Hua HAO Shi-ming CHEN Hui
School of Materials and Metallurgy,Northeastern University,Shenyang 110004,China Traffic and Mechanical School,Shenyang Jianzhu University,China
国际会议
2007年国际有色金属大会(International Conference of Nonfereous Materials 2007)(ICNFM)
长沙
英文
2007-11-28（万方平台首次上网日期，不代表论文的发表时间）