Preparation of Mg-Li-La alloys by electrolysis in molten salt

被引:24
作者
Zhang Mi-lin [1 ]
Cao Peng [1 ]
Han Wei [1 ]
Yan Yong-de [1 ]
Chen Li-jun [1 ]
机构
[1] Harbin Engn Univ, Key Lab Superlight Mat & Surface Technol, Minist Educ, Coll Mat Sci & Chem Engn, Harbin 150001, Peoples R China
基金
中国国家自然科学基金;
关键词
Mg-Li-La alloys; La2O3; electrolysis; microstructure; ELECTROCHEMICAL FORMATION; MICROSTRUCTURE;
D O I
10.1016/S1003-6326(11)61133-3
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
An electrochemical method was used to prepare Mg-Li-La alloys in a molten LiCl-KCl-KF-MgCl2 containing La2O3 at 943 K. The results showed preparation of Mg-Li-La alloys by electrolysis is feasible. The Mg-Li-La alloys were analyzed by means of X-ray diffraction (XRD), optical micrograph (OM) and scanning electron microscopy (SEM). XRD analysis indicates that alpha+Mg17La2, alpha+beta+Mg17La2 and beta+LaMg3 Mg-Li-La alloys with different lithium and lanthanum contents were obtained via galvanostatic electrolysis. The microstructures of typical alpha+Mg17La2 and beta+LaMg3 phases of Mg-Li-La alloys were characterized by optical microscopy (OM) and scanning electron microscopy (SEM). The analysis of energy dispersive spectrometry (EDS) shows that the element of Mg distributes homogeneously in the Mg-Li-La alloy and the element of La mostly
引用
收藏
页码:16 / 22
页数:7
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