Structure and Properties of Ion-Plasma Coatings Based on Transition Metals and Their Nitrides Deposited on the Surface of Beryllium

IF 2 4区材料科学 Q2 MATERIALS SCIENCE, CHARACTERIZATION & TESTING

Physical Mesomechanics Pub Date : 2026-05-04 DOI:10.1134/S1029959925600260

N. V. Semenchuk, O. S. Novitskaya

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Abstract

The microstructure, phase composition, and tribological properties of coatings deposited on beryllium bronze to enhance its wear resistance were investigated. Composite and gradient Cu - Ti coatings, as well as single-layer and multilayer TiN and CrN / TiN coatings, were examined. It was found that composite and gradient Cu - Ti coatings exhibit a multiphase structure with either a uniform or gradient titanium distribution across the coating cross-section, depending on the ion-plasma spraying parameters. Multilayer CrN / TiN coatings displayed a well-defined layer periodicity, with individual layer thicknesses of 250 nm (16-layer coating) and 125 nm (32-layer coating). The single-layer TiN coating featured a columnar microstructure and had a total thickness of 4 μm. To enhance the adhesion of TiN and CrN coatings to the substrate, a Cu - Ti interlayer was applied, reducing interfacial stresses and improving bond strength. Scratch tests confirmed good adhesion for all coatings, with the coatings sustaining loads ranging from 10 N (single-layer and 16-layer coatings) up to 30 N (CrN coating with a Cu - Ti interlayer). Tribological tests revealed that most coatings wear via a microabrasive friction mechanism, except for the composite and gradient Cu - Ti coatings, which fail through an adhesive-brittle mechanism. The 32 - layer CrN / TiN coating and the coatings with a Cu - Ti interlayer exhibited the highest wear resistance. The findings demonstrate that multilayer architectures and Cu - Ti interlayers significantly enhance the mechanical and tribological properties of beryllium bronze coatings, making them promising for high-load and high-wear applications.

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铍表面过渡金属及其氮化物离子等离子体涂层的结构与性能

研究了铍青铜涂层的显微组织、相组成和摩擦学性能。研究了Cu - Ti复合涂层和梯度涂层，以及单层和多层TiN和CrN / TiN涂层。结果表明，根据离子等离子体喷涂参数的不同，复合和梯度Cu - Ti涂层呈现出均匀或梯度钛在涂层截面上分布的多相结构。多层CrN / TiN涂层表现出明显的层周期性，单层厚度分别为250 nm（16层涂层）和125 nm（32层涂层）。单层TiN涂层呈柱状组织，总厚度为4 μm。为了增强TiN和CrN涂层与基体的附着力，采用Cu - Ti夹层降低界面应力，提高结合强度。划痕测试证实，所有涂层都具有良好的附着力，涂层承受的载荷范围从10 N（单层和16层涂层）到30 N（含Cu - Ti中间层的CrN涂层）。摩擦学测试表明，除了复合涂层和梯度Cu - Ti涂层通过粘接-脆性机制失效外，大多数涂层都是通过微磨粒摩擦机制磨损的。32层CrN / TiN涂层和Cu - Ti夹层涂层的耐磨性最高。研究结果表明，多层结构和Cu - Ti夹层显著提高了铍青铜涂层的机械性能和摩擦学性能，使其具有高负荷和高磨损应用的前景。

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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.