Anodic Electrolytic-Plasma Borocarburizing of Low-Carbon Steel

作者：Kusmanov S A^*; Tambovskii I V; Naumov A R; D'yakov I G; Kusmanova I A; Belkin P N

来源：Protection of Metals and Physical Chemistry of Surfaces, 2017, 53(3): 488-494.

DOI：10.1134/S2070205117030121

• electrolytic-plasma borocarburizing
• microhardness
• roughness
• corrosion rate
• wear

The effect of conditions of anodic electrolytic-plasma borocarburizing of low-carbon steel on its structure and properties has been studied. It has been established that the effect of the treatment conditions on the thickness of a modified layer is explained by the competition of boron and carbon diffusion and steel-sample oxidation. The mechanism of transport of saturating components from electrolyte into steel is described. An electrolyte composition (10-15% sal ammoniac, 5% boric acid, and 4-8% glycerine) and treatment modes (800-900 degrees C, 5 min) are suggested that produce a hardened surface layer with a thickness of up to 0.15 mm and a microhardness of 1000 HV and reduce surface roughness by an order of magnitude. Anodic electrolytic-plasma borocarburizing makes it possible to reduce the coefficient of friction by 36%, steel-wear rate by an order of magnitude, and corrosion rate by 2.5 times.

• 出版日期2017-5