论文部分内容阅读
采用加弧辉光离子渗金属技术,在三种含碳量(0.1%Wt、0.45%Wt、0.80wt%)的碳钢试样表面进行了镍-铬共渗处理,对渗层的组织形貌、合金元素成分分布以及其相组成进行了研究,测定了经加孤辉光离子镍-铬共渗处理的试样在0.05mol/LH2SO4溶液中的电位-时间曲线。结果表明,10钢试样表面形成的镍-格共修层为单一的γ相;45、T8钢试样表面形成的镍-铬共渗层是以γ相为基,同时存在碳化物Cr23C6、Cr7C3。经加孤辉光离子镍-铬共渗处理后,10、45钢试样的表面抗蚀性能大大提高,与18-8型不锈钢相当;T8钢试样的表面抗蚀性能没有十分明显的改善。
Nickel-chromium co-infiltration treatment was performed on the surface of three kinds of carbon steel with carbon content (0.1% Wt, 0.45% Wt, 0.80wt%) by adding arc glow ion infiltration metal. The microstructure, composition distribution and phase composition of the alloying elements were investigated. The potential-time curves of the samples treated with lone-glow nickel-chromium co-permeation in 0.05 mol / LH 2 SO 4 solution were determined. The results show that the Ni-grid co-layer formed on the surface of the 10 steel is a single γ phase. 45, the Ni-Cr co-diffusion layer formed on the surface of the T8 steel sample is based on the γ phase with carbide Cr23C6, Cr7C3. The surface corrosion resistance of 10,45 steel samples increased greatly with the addition of glow-glow nickel-chromium co-permeation treatment, which is equivalent to that of 18-8 type stainless steel. The surface corrosion resistance of T8 steel samples was not significantly improved .