Abstract

The technology of pulsed cathode-arc evaporation (P-CAE) has been successfully applied for coating deposition in the Cr–B–C–N system. The coatings had a structure typical for arc coatings with a significant fraction of the condensed droplet phase, but the formation of an adverse columnar morphology has been eliminated. The coatings contained crystallites of the h-CrB₂ and с-CrN phases along with a large amount of the amorphous phase, the composition of which varied depending on the type of the working environment. The coatings obtained in argon demonstrated the highest hardness of 12 GPa, while those obtained in the C₂H₄ medium were characterized by the highest elastic-plastic properties (elastic recovery 72%). The friction coefficient of coatings deposited in Ar, N_2, and C₂H₄ media was 0.7, 0.4, and 0.3, respectively. The phase of diamond-like carbon in the latter case resulted in a decrease in the friction coefficient due to high fraction of sp2-bonded carbon serving as a dry lubricant. The coatings of the optimal composition were resistant to high temperature oxidation in the temperature range 600–1000°С. At high temperatures, the oxidation process was followed by intensive diffusion of boron atoms in depth of the substrate.

中文翻译：

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在Ar，N 2和C 2 H 4介质中，通过脉冲阴极电弧蒸发P-CAE方法，使用CrB 2阴极在Cr–B–C–N系统中获得的涂层结构和性能

摘要

脉冲阴极电弧蒸发技术（P-CAE）已成功应用于Cr–B–C–N系统中的涂层沉积。涂层具有电弧涂层的典型结构，该结构的冷凝液滴相占很大比例，但是消除了不利的柱状形态。涂层包含h-CrB ₂和с-CrN相的微晶以及大量的非晶相，其成分根据工作环境的类型而变化。在氩气中获得的涂层显示出最高的硬度为12 GPa，而在C ₂ H _4中获得的涂层显示出最高的硬度。介质的特点是具有最高的弹塑性（弹性回复率为72％）。沉积在Ar，N ₂和C ₂ H ₄介质中的涂层的摩擦系数分别为0.7、0.4和0.3。在后一种情况下，类金刚石碳的相导致摩擦系数降低，这是由于高比例的作为干燥润滑剂的sp 2键合的碳所致。最佳成分的涂层在600–1000°С的温度范围内具有抗高温氧化的能力。在高温下，氧化过程之后是硼原子在基材深度的强烈扩散。