Fabrication of Mg–Pr and Mg–Li–Pr alloys by electrochemical co-reduction from their molten chlorides
Fabrication of Mg–Pr and Mg–Li–Pr alloys by electrochemical co-reduction from their molten chlorides
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熔融氯化物电化学共还原制备 Mg-Pr 和 Mg-Li-Pr 合金
DOI：
10.1016/j.electacta.2013.05.129
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发表时间：
2013-09
影响因子：
6.6
通讯作者：
Hui He
中科院分区：
文献类型：
--
作者：
Wei Han;Yun Xue;Zhi-Jian Zhang;Hui He
本文介绍了在熔融licl - kcl - mgcl2 - prcl3体系中，在钨电极上电化学沉积Mg-Pr和Mg-Li-Pr合金。采用循环伏安法（CV）和开路计时电位法（OCP）研究了熔体中Mg（II）、Pr（III）和Li(I)离子的电化学行为和合金形成过程。采用恒电位和恒流分别在- 1.85 V和- 6.00 A cm - 2条件下电解3 h和2 h，得到球形块状合金。通过改变熔体中prcl3和mgcl2的浓度来调节合金中Pr和Li的含量。Mg-Pr合金中Pr的含量控制在9.73 ~ 19.93 wt.%之间，Li的含量控制在0.10 ~ 37.27 wt.%之间。x射线衍射（XRD）表明，Mg-Pr合金仅由α-Mg相和Mg12Pr相组成。而在Mg-Li-Pr合金中，相由Mg12Pr转变为Mg3Pr，基体由α-Mg转变为β-Li。采用扫描电镜（SEM）和能谱仪（EDS）对Mg-Pr和Mg-Li-Pr合金的显微组织和微区化学分析进行了表征。
This work presents the electrochemical deposition of Mg–Pr and Mg–Li–Pr alloys on tungsten electrodes in molten LiCl–KCl–MgCl2–PrCl3system. The electrochemical behavior of Mg(II), Pr(III), and Li(I) ions and alloy formation process in the melts were investigated by cyclic voltammetry (CV) and open circuit chronopotentiometry (OCP). Spherical bulk alloys were obtained by potentiostatic and galvanostatic electrolysis at −1.85 V for 3 h and −6.00 A cm−2for 2 h, respectively. Pr and Li contents in the alloys were regulated by changing the concentration of PrCl3and MgCl2in the melts. The proportion of Pr was controlled from 9.73 to 19.93 wt.% in Mg–Pr alloys and the ratio of Li changed from 0.10 to 37.27 wt.% in Mg–Li–Pr alloys. X-ray diffraction (XRD) indicated that Mg–Pr alloys were solely comprised of α-Mg and Mg12Pr phases. However, in Mg–Li–Pr alloys, the phases were transformed from Mg12Pr to Mg3Pr, accompanied by the transition of matrix (from α-Mg to β-Li). The microstructure and micro-zone chemical analysis of Mg–Pr and Mg–Li–Pr alloys were characterized by scanning electron microscopy (SEM) with energy dispersive spectrometry (EDS).
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影响因子：
3.1
作者：
D. Hudry;I. Bardez;A. Rakhmatullin;A. Rakhmatullin;C. Bessada;C. Bessada;F. Bart;S. Jobic;P. Deniard
通讯作者：
D. Hudry;I. Bardez;A. Rakhmatullin;A. Rakhmatullin;C. Bessada;C. Bessada;F. Bart;S. Jobic;P. Deniard
影响因子：
6.6
作者：
T. Iida;T. Nohira;Y. Ito
通讯作者：
T. Iida;T. Nohira;Y. Ito
DOI：
10.1007/s11663-011-9550-1
发表时间：
2011-07
期刊：
Metallurgical and Materials Transactions B
影响因子：
--
作者：
W. Han;Fengli Wang;Yang Tian;Milin Zhang;Yongde Yan
通讯作者：
W. Han;Fengli Wang;Yang Tian;Milin Zhang;Yongde Yan
影响因子：
4.9
作者：
Yun Xue;Yongde Yan;Milin Zhang;W. Han;Zhi-Jian Zhang
通讯作者：
Yun Xue;Yongde Yan;Milin Zhang;W. Han;Zhi-Jian Zhang
影响因子：
6.6
作者：
Castrillejo, Y.;Fernandez, P.;Barrado, E.
通讯作者：
Barrado, E.