Formation of a Zr+ZrxNy+(Zr+TiBSiNi)N+(TiBSiNi)N Gradient-Layered Coating Based on Physical and Tribotechnical Characteristics of Constituent Layers

IF 0.4 4区 物理与天体物理 Q4 PHYSICS, MULTIDISCIPLINARY
V. M. Savostikov, A. A. Leonov, V. V. Denisov, Yu. A. Denisova, M. V. Savchuk, A. B. Skosyrskii, M. S. Syrtanov, A. V. Pirozhkov
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引用次数: 0

Abstract

In order to promote the research on vacuum-arc coating deposition using vaporable TiBSiNi SHS-cathodes, a design of a Zr+ZrxNy+(Zr+TiBSiNi)N+(TiBSiNi)N gradient-layered hardening coating is proposed. Its constituent layers are selected relying on the results of a comparative study of their physical, mechanical and tribotechnical properties. The coating architecture is based on the tribological theory and the analysis of basic requirements to protective-hardening coatings. A comparison of the coating parameters with those of its layers demonstrates that most of them exceed the latter. In particular, its hardness is found to be 40.2 ± 2.0 GPa against that of a ZrN coating equal to 31.5 ± 2.3 GPa and is at the level of the hardest (TiBSiNi)N coating layer (41.9 ± 3.6 GPa). The adhesion (strength of cohesion to substrate) of the gradient-layered coating exceeds those of its constituent layers – ZrN, (TiBSiNi)N, and (Zr+TiBSiNi)N. An annealing treatment of this coating at 700°C in air for 60 min demonstrates its high thermal stability. The proposed gradient-layered coating exhibits a higher hardness (14.8 GPa) compared to the other coating types (5.8–9.1 GPa) after annealing, which, according to the XRD analysis, can be attributed to the availability of zirconium nitrides and harder titanium nitrides in its composition. The principal criteria of the designed gradient-layered coating are its tribo-engineering tests demonstrating both a lower friction coefficient and a higher wear resistance over those of the other coatings. Its wear parameter is found to be 5.4∙10–6 mm3N–1m–1 in coupling with a 100Cr6 steel counterbody compared to that of a conventional ZrN zirconium nitride coating – 43.0∙10–6 mm3N–1m–1. There are also some advantages of the gradient-layered coating revealed in its wear resistance in comparison with the constituent multi-component layers – both with a 100Cr6 steel counterbody and in a tribo-couple with a superhard silicon carbide, SiC.

基于组成层的物理和摩擦学特性的 Zr+ZrxNy+(Zr+TiBSiNi)N+(TiBSiNi)N 梯度层状涂层的形成过程
为了促进使用可蒸发 TiBSiNi SHS 阴极的真空电弧涂层沉积研究,提出了一种 Zr+ZrxNy+(Zr+TiBSiNi)N+(TiBSiNi)N 梯度层状硬化涂层的设计方案。其组成层是根据物理、机械和摩擦技术性能的比较研究结果选定的。涂层结构基于摩擦学理论和对保护性硬化涂层基本要求的分析。涂层参数与涂层层参数的比较表明,大多数参数都超过了后者。特别是其硬度为 40.2 ± 2.0 GPa,而 ZrN 涂层的硬度为 31.5 ± 2.3 GPa,达到了最硬(TiBSiNi)N 涂层层(41.9 ± 3.6 GPa)的水平。梯度层状涂层的附着力(对基体的内聚强度)超过了其组成层--ZrN、(TiBSiNi)N 和 (Zr+TiBSiNi)N。这种涂层在 700°C 的空气中退火 60 分钟,证明了它具有很高的热稳定性。与其他类型的涂层(5.8-9.1 GPa)相比,拟议的梯度层状涂层在退火后显示出更高的硬度(14.8 GPa),根据 XRD 分析,这可归因于其成分中含有氮化锆和更硬的氮化钛。所设计的梯度层状涂层的主要标准是其三维工程测试表明比其他涂层具有更低的摩擦系数和更高的耐磨性。与传统的氮化锆涂层(43.0∙10-6 mm3N-1m-1)相比,在与 100Cr6 钢主体耦合时,其磨损参数为 5.4∙10-6 mm3N-1m-1。与多组分涂层相比,梯度层状涂层在耐磨性方面也有一些优势,无论是与 100Cr6 钢基体耦合,还是与超硬碳化硅(SiC)三耦合。
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来源期刊
Russian Physics Journal
Russian Physics Journal PHYSICS, MULTIDISCIPLINARY-
CiteScore
1.00
自引率
50.00%
发文量
208
审稿时长
3-6 weeks
期刊介绍: Russian Physics Journal covers the broad spectrum of specialized research in applied physics, with emphasis on work with practical applications in solid-state physics, optics, and magnetism. Particularly interesting results are reported in connection with: electroluminescence and crystal phospors; semiconductors; phase transformations in solids; superconductivity; properties of thin films; and magnetomechanical phenomena.
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