Abstract—

Electrodeposition of CoMo and CoRe binary alloys and CoMoRe ternary alloys from a citrate electrolyte (pH 3.5) was studied depending on the presence of a magnetostatic field and the direction of the magnetic induction vector relative to the surface of the working electrode. It was shown that magnetoelectrolysis significantly increases the current efficiency of all investigated alloys, especially the CoMoRe ternary alloy. The forces acting in the liquid and on bubbles of hydrogen evolved during a reaction in a magnetostatic field were modeled. It was demonstrated that the generation of convective flows by magnetohydrodynamic effect is neither single, nor determining factor. In the case of intense gas evolution, the force balance varies depending on the size of the bubbles: the conduction force and the buoyancy force dominate for large bubbles (about 100 μm), whereas the magnetic gradient force is predominant for small bubbles (less than 1 μm).

中文翻译：

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恒定磁场对柠檬酸盐电解液电沉积 CoMo、CoRe 和 CoMoRe 合金的影响

摘要——

根据静磁场的存在以及磁感应矢量相对于工作电极表面的方向，研究了柠檬酸盐电解质（pH 3.5）中 CoMo 和 CoRe 二元合金以及 CoMoRe 三元合金的电沉积。结果表明，磁电解显着提高了所有研究合金的电流效率，尤其是 CoMoRe 三元合金。对静磁场反应过程中作用在液体中和氢气气泡上的力进行了建模。结果表明，磁流体动力效应产生对流既不是单一因素，也不是决定因素。在剧烈气体逸出的情况下，力平衡根据气泡的大小而变化：