Electrochemical formation and phase control of Mg–Li alloys

Electrolytic Deposition and Diffusion of Lithium onto Magnesium-9 Wt Pct Yttrium Bulk Alloy in Low-Temperature Molten Salt of Lithium Chloride and Potassium Chloride

“…This electrolyte had more lithium chloride than the eutectic composition of the lithium chloridepotassium chloride system, [10,16] to keep the composition close to the eutectic lithium chloride-potassium chloride for a long time despite the consumption of lithium chloride during electrolysis. In the literature, [8][9][10][11][12][13] the electrolyses of lithium depositing onto magnesium alloy cathodes in molten salt were carried in the temperature range of 693 to 903 K. In order to allow the gas to escape quickly from the electrolyte, the temperature should be kept at 30 to 50 K higher than the melting point of the electrolyte to keep the melt in good fluidity and low surface tension. Since low temperature is favorable to reduce energy consumption, all electrolyses in the present work were carried out at a relatively low temperature of 693 K.…”

“…[14] However, the diffusing and alloying steps were still regarded as the controlling step because of the difficulty of diffusion in solid materials. [14] In previous works, [8][9][10][11][12][13] the depth of penetration, which was also named the width of a single lithium containing layer, was less than 2 mm. Since high temperature leads to high diffusion of the lithium atoms, the lithium penetration depth can be improved by increasing the temperature.…”

“…[8,9] This kind of method allows the lithium atoms from lithium chloride to alloy with other metals directly, as a result, eliminating preparation of the highly reactive lithium. During the last 5 years, researchers studied the methods of preparing magnesium-lithium alloys by electrolysis at relatively low temperatures of 693 to 783 K, [10][11][12][13] because electrolysis at low temperature will reduce the corrosion of containers and lower the energy consumption. In the electrolytic method, the processes of producing alloys can be divided into two steps.…”

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

“…[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.…”