Preparation of Mg–Li alloys by electrolysis in molten salt at low temperature

Zhang, Mi Lin; Yan, Yong De; Hou, Zhi Yao; Fan, Lu An; Zeng, Chen; Tang, Dezhi

doi:10.1016/j.cclet.2007.01.004

Cited by 12 publications

(7 citation statements)

References 4 publications

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“…(1) It is not necessary to strictly control the purity of raw materials since some so-called impurity elements can be alloying elements to enhance mechanical properties for Mg-Li based alloys. [99][100][101] Furthermore, the process of metallic deposition, the alloying process, phase control of alloys and composition control of alloys have also been investigated. In the course of preparation of Mg-Li alloys by electrolysis in molten salts, Li was reduced on a solid magnesium electrode in a molten LiCl-KCl (50 : 50 wt-%) system in the range of 693-783 K. The results show that the highest efficiency exists at 753 K. Therefore, the electrochemical mechanism of Mg-Li alloys by electrolysis was investigated at this temperature.…”

Section: Preparation Of Mg-li Base Alloys By Electrolysis In Molten S...mentioning

confidence: 99%

Recent progress in magnesium–lithium alloys

Yan

Wang

et al. 2014

International Materials Reviews

272

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Magnesium-lithium base alloy is one of the lightest metallic engineering materials with a density of 1?35-1?65 g cm 23 , which is referred to as superlight materials. It has become an attractive material in the fields of aerospace, automobiles, portable electronics, etc. In this paper, the developing history and recent progress of superlight magnesium-lithium base alloys are reviewed. The progress on molten electrolysis preparation, processing technologies and surface processing technologies are introduced, and future research directions are suggested based on the current research progress.

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Section: Preparation Of Mg-li Base Alloys By Electrolysis In Molten S...mentioning

confidence: 99%

Recent progress in magnesium–lithium alloys

Yan

Wang

et al. 2014

International Materials Reviews

272

View full text Add to dashboard Cite

show abstract

“…[2,3] Nowadays, Mg-Li alloys are still drawing increasing academic and experimental interests for their good performances and potential use as components of automobiles and portable electronic devices. Recently, interests have focused on various aspects, such as preparing Mg-Li alloys by electrolysis in molten salt [4][5][6][7][8][9][10][11][12][13][14] and noncrystalline bulk Mg-Li alloys by rapid quenching, [15] developing new Mg-Li alloys through ab initio calculations, [16][17][18][19] characterizing Mg-Li alloys with the electron backscatter diffraction (EBSD) method, [20][21][22][23] improving mechanical properties via using severe plastic deformation (SPD) such as equal channel angle extrusion (ECAE), [24,25] among others.…”

Section: The Addition Of Lithium In Magnesium Enablesmentioning

confidence: 99%

Microstructures and Mechanical Properties of As-Cast and Hot-Rolled Mg-8.43Li-0.353Ymm (Y-riched mischmetch) Alloy

Dong

Wang

et al. 2011

Metall Mater Trans A

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Mg-8.43Li-0.353Ymm (Y-riched mischmetch) alloy was prepared using the metal model casting method and then hot-rolled at 573 K (300°C) to total reduction of 81 pct, and microstructures and mechanical properties were evaluated. Results show that the rolling procedure introduces great dynamic recrystallization, and b-Li grains in the rolled alloy present an ultra-low average size of 2.18 lm. The ultimate tensile strength and yield strength of the rolled alloy are 158-167 MPa and 124-130 MPa, respectively, 42-63 pct higher than that of the as-cast alloy. The elongation of the rolled alloy is improved to 31-40 pct, as about four to five times that of the as-cast alloy, which is ascribed to the great grain refinement of the b-Li phase.

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“…The eutectic point (59 pct LiCl-41 pct KCl, mol pct) is 625 K (352°C). [8] Chen, Smolinski, and Nohira, and their colleagues, [9][10][11][12][13][14] have studied the preparation or the electrochemical formation process of some alloys by using the molten LiCl-KCl eutectic salt. Castrillejo et al [15][16][17][18][19] have investigated the electrochemical behavior of some metallic ions on active cathode in the LiCl-KCl eutectic salt.…”

Section: Introductionmentioning

confidence: 98%

Electrodeposition of Mg-Li-Al-La Alloys on Inert Cathode in Molten LiCl-KCl Eutectic Salt

Han

Chen²,

Sun

et al. 2011

Metall Mater Trans B

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Electrochemical preparation of Mg-Li-Al-La alloys on inert electrodes was investigated in LiClKCl melt at 853 K (580°C). Cyclic voltammograms (CVs) and square wave voltammograms (SWVs) show that the existence of AlCl 3 or AlF 3 could promote La deposition on an active Al substrate, which is predeposited on inert electrodes. All electrochemical tests show that the reduction of La 3+ is a one-step reduction process with three electrons exchanged. The reduction of La(III)fiLa(0) occurred at -2.04 V, and the underpotential deposition (UPD) of La was detected at -1.55 V (vs Ag/AgCl). The same phenomena concerning La UPD were observed on two inert cathodes, W and Mo. In addition, Mg-Li-Al-La alloys were obtained by galvanostatic electrolysis on the W cathode from La 2 O 3 in LiCl-KCl-MgCl 2 -KF melts with aluminum as the anode. X-ray diffraction (XRD) measurements indicated that various phases like the Al 2 La, Al 12 Mg 17 , and bLi phase (LiMg/Li 3 Mg 7 ) existed in the Mg-Li-Al-La alloys. The distribution of Mg, Al, and La in Mg-Li-Al-La alloys from the analysis of a scan electron micrograph (SEM) and energy dispersive spectrometry (EDS) indicated that the elements Mg, Al, and La distributed homogeneously in the alloys.

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Preparation of Mg–Li alloys by electrolysis in molten salt at low temperature

Cited by 12 publications

References 4 publications

Recent progress in magnesium–lithium alloys

Recent progress in magnesium–lithium alloys

Microstructures and Mechanical Properties of As-Cast and Hot-Rolled Mg-8.43Li-0.353Ymm (Y-riched mischmetch) Alloy

Electrodeposition of Mg-Li-Al-La Alloys on Inert Cathode in Molten LiCl-KCl Eutectic Salt

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