Structural-Phase State and Properties of Cr-Al-Si-N Coatings Obtained by Vacuum Arc Plasma Deposition

IF 1.8 4区材料科学 Q2 MATERIALS SCIENCE, CHARACTERIZATION & TESTING

Physical Mesomechanics Pub Date : 2023-04-19 DOI:10.1134/S1029959923020029

V. I. Kolesnikov, O. V. Kudryakov, V. N. Varavka, A. V. Sidashov, I. V. Kolesnikov, D. S. Manturov, A. I. Voropaev

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Abstract

This study discusses CrAlSiN coatings obtained by vacuum arc plasma deposition. The structural and compositional parameters that are responsible for the most essential coating properties are identified. The structural morphology, elemental distribution, and phase composition of the coatings are investigated. The physicomechanical, adhesive and tribological characteristics are determined. Coatings were deposited on substrates of nitrided and carburized structural steels widely used in mechanical engineering. The coating properties are determined and compared with the corresponding surface properties of the standard uncoated specimen. The coating thickness for the experimental specimens was 0.82–1.18 µm. A comparative analysis of the coating phase composition is carried out using X-ray photoelectron spectroscopy (XPS) and thermodynamic calculations with Termo-Calc software. It is shown and proved experimentally that ion plasma coatings are nonequilibrium. In addition, CrAlSiN coatings significantly increase the mechanical characteristics of the material, such as hardness and resistance to elastic and plastic deformation, and adhere well to the substrate surface. In tribological tests, CrAlSiN coatings reduce the wear rate by a factor of 2–4 compared to nitrided steel and by an order of magnitude compared to carburized steel. These high properties are also attributed to the nonequilibrium structural-phase state of the coating. The obtained results indicate that vacuum arc plasma CrAlSiN coatings can be used as wear resistant protective coatings, including under friction conditions.

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真空电弧等离子沉积Cr-Al-Si-N涂层的结构相态和性能

研究了真空电弧等离子沉积法制备的CrAlSiN涂层。确定了影响最基本涂层性能的结构和成分参数。研究了镀层的结构形态、元素分布和相组成。测定了材料的物理力学、粘接和摩擦学特性。在机械工程中广泛应用的渗氮和渗碳结构钢基体上沉积了涂层。测定了涂层性能，并与标准未涂层试样的相应表面性能进行了比较。实验试样的涂层厚度为0.82 ~ 1.18µm。利用x射线光电子能谱(XPS)和热力学计算软件Termo-Calc对涂层的相组成进行了对比分析。实验证明了离子等离子体涂层是不平衡的。此外，CrAlSiN涂层显著提高了材料的力学特性，如硬度和抗弹塑性变形，并与基材表面粘附良好。在摩擦学测试中，与氮化钢相比，CrAlSiN涂层的磨损率降低了2-4倍，与渗碳钢相比，降低了一个数量级。这些高性能也归因于涂层的非平衡结构相状态。研究结果表明，真空电弧等离子体CrAlSiN涂层可以作为耐磨保护涂层，包括在摩擦条件下。

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来源期刊

Physical Mesomechanics Materials Science-General Materials Science

CiteScore

3.50

自引率

18.80%

发文量

期刊介绍： The journal provides an international medium for the publication of theoretical and experimental studies and reviews related in the physical mesomechanics and also solid-state physics, mechanics, materials science, geodynamics, non-destructive testing and in a large number of other fields where the physical mesomechanics may be used extensively. Papers dealing with the processing, characterization, structure and physical properties and computational aspects of the mesomechanics of heterogeneous media, fracture mesomechanics, physical mesomechanics of materials, mesomechanics applications for geodynamics and tectonics, mesomechanics of smart materials and materials for electronics, non-destructive testing are viewed as suitable for publication.