Abstrac

t—The results of plasma-electrolytic polishing of steel specimens after their anodic diffusion saturation with elements, which form interstitial solutions, are considered. The structure and phase composition of the modified layers are studied using the X-ray diffraction analysis and electronic microscopy. The surface roughness and corrosion resistance of specimens in the 3.5% sodium chloride solution are measured. Various morphology of oxide layer is revealed after nitrocarburizing, nitriding, boronizing and borocarburizing of carbon structural steels 20 and 45. The versions of treatment and electrolyte compositions are determined that reduce the surface roughness from 1.00 μm for the control specimen to 0.23 μm after borocarburizing in the solution of boric acid, glycerol and ammonium chloride followed by polishing in the sulfate electrolyte and to 0.40–0.42 μm after nitriding in the ammonia and ammonium chloride solution followed by polishing in the sulfate or chloride electrolyte. It is shown that the corrosion current density of steel 45 can be reduced by almost 4 times after nitriding and polishing in the sulfate or chloride electrolyte.

中文翻译：

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等离子电解抛光对氮，硼，碳阳极饱和后结构钢耐蚀性的影响

Abstrac

t-考虑了在钢试样的阳极扩散饱和后形成元素间隙溶液的等离子体电解抛光的结果。使用X射线衍射分析和电子显微镜研究了改性层的结构和相组成。测量了样品在3.5％氯化钠溶液中的表面粗糙度和耐腐蚀性。在碳结构钢20和45进行氮碳共渗，渗氮，硼化和硼碳共渗后，发现了氧化层的各种形态。确定的处理和电解质成分版本可将表面粗糙度从对照样品的1.00μm降低至碳硼化后的0.23μm。硼酸溶液 甘油和氯化铵，然后在硫酸盐电解液中进行抛光；在氨和氯化铵溶液中氮化后，抛光至0.40–0.42μm，然后在硫酸盐或氯化物电解液中进行抛光。结果表明，在硫酸盐或氯化物电解液中进行氮化和抛光后，钢45的腐蚀电流密度几乎可以降低4倍。