Abstract

The diffusion saturation of metals and alloys with carbon under the conditions of electrolysis plasma has been successfully studied for decades due to new possibilities and a number of advantages. Those include a high processing speed at which the duration of carburising is several minutes, combining with quenching in the same electrolyte without reheating, a possibility of local processing of some parts of components, and the use of environmentally friendly and inexpensive aqueous solutions. To date, electrolyte compositions and processing modes for various steels and titanium alloys have been proposed, as well as new information on the mechanism of the formation of a gaseous-plasma saturating medium and the regularities of carbon saturation. Investigation data obtained by many research groups needs analysis and synthesis. This review discusses the physical and chemical aspects of plasma electrolytic carburising, as well as the conditions and results of its practical usage. Attention is paid to the influence of the main factors of diffusion saturation with carbon on the achieved values of microhardness, roughness, wear resistance, and corrosion resistance of the processed materials under various test conditions.

中文翻译：

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金属和合金的等离子电解渗碳

摘要

由于新的可能性和许多优点，已经成功地研究了在电解等离子体条件下金属和碳在碳中的扩散饱和。这些包括高的处理速度，在该速度下渗碳的持续时间为几分钟，再加上在相同的电解质中淬火而无需重新加热的过程，可以对某些部件进行局部处理，并且可以使用环保且廉价的水溶液。迄今为止，已经提出了用于各种钢和钛合金的电解质组成和加工方式，以及关于形成气态等离子体饱和介质的机理和碳饱和度的规律性的新信息。许多研究小组获得的调查数据需要分析和综合。这篇评论讨论了等离子体电解渗碳的物理和化学方面，以及其实际使用的条件和结果。注意在各种测试条件下，碳扩散饱和的主要因素对所加工材料的显微硬度，粗糙度，耐磨性和耐蚀性的实现值的影响。