Investigation of the structure and phase composition of the microdroplets formed during the deposition of PVD coatings

IF 6.9 2区材料科学 Q1 MATERIALS SCIENCE, COATINGS & FILMS

Surface & Coatings Technology Pub Date : 2022-07-15 Epub Date: 2022-05-30 DOI:10.1016/j.surfcoat.2022.128574

Alexey Vereschaka , Filipp Milovich , Nikolay Andreev , Catherine Sotova , Islam Alexandrov , Alexander Muranov , Maxim Mikhailov , Aslan Tatarkanov

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引用次数: 7

Abstract

The paper deals with the features of the structure and phase composition typical for the microdroplets of various elemental composition, including Ti, Zr, Cr, and AlN, and the effect of microdroplets on the structure of nanolayer coatings of TiN-(Ti,Al)N, TiN-(Ti,Mo,Al)N, ZrN-(Zr,Mo,Al)N, and CrN-(Cr,Mo,Al)N. The studies were carried out using the methods of transmission electron microscopy, X-ray spectroscopy and scanning transmission electron microscopy. The experiments revealed the specific features of the deformation of the nanolayer structure of the coating under the impact of microdroplets hitting the coating surface. The study also determined the phases formed in the microdroplets of various compositions. The diffusion processes have been investigated, during which the metals, contained in the coating (in particular, molybdenum (Mo)), dissolve in the surface layers of the core of the main microdroplet element. According to the study, microdroplets can be formed both by pure metals and by their nitrides. The paper considers the possibility of a positive effect of a microdroplet on the cutting process due to the formation of an intermediate layer of a solid lubricant between the coating and the material being machined.

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PVD涂层沉积过程中微滴的结构和相组成研究

本文研究了Ti、Zr、Cr、AlN等不同元素组成的微滴的典型结构和相组成特征，以及微滴对TiN-(Ti,Al)N、TiN-(Ti,Mo,Al)N、ZrN-(Zr,Mo,Al)N和CrN-(Cr,Mo,Al)N纳米涂层结构的影响。采用透射电子显微镜、x射线光谱学和扫描透射电子显微镜进行了研究。实验揭示了微液滴撞击涂层表面时涂层纳米层结构变形的具体特征。研究还确定了不同组成的微滴所形成的相。研究了扩散过程，在此过程中，涂层中含有的金属(特别是钼)溶解在主要微滴元素核心的表面层中。根据这项研究，微滴既可以由纯金属形成，也可以由它们的氮化物形成。本文考虑了微液滴对切削过程的积极影响的可能性，因为在涂层和被加工材料之间形成了一层固体润滑剂的中间层。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Surface & Coatings Technology 工程技术-材料科学：膜

CiteScore

10.00

自引率

11.10%

发文量

921

审稿时长

19 days

期刊介绍： Surface and Coatings Technology is an international archival journal publishing scientific papers on significant developments in surface and interface engineering to modify and improve the surface properties of materials for protection in demanding contact conditions or aggressive environments, or for enhanced functional performance. Contributions range from original scientific articles concerned with fundamental and applied aspects of research or direct applications of metallic, inorganic, organic and composite coatings, to invited reviews of current technology in specific areas. Papers submitted to this journal are expected to be in line with the following aspects in processes, and properties/performance: A. Processes: Physical and chemical vapour deposition techniques, thermal and plasma spraying, surface modification by directed energy techniques such as ion, electron and laser beams, thermo-chemical treatment, wet chemical and electrochemical processes such as plating, sol-gel coating, anodization, plasma electrolytic oxidation, etc., but excluding painting. B. Properties/performance: friction performance, wear resistance (e.g., abrasion, erosion, fretting, etc), corrosion and oxidation resistance, thermal protection, diffusion resistance, hydrophilicity/hydrophobicity, and properties relevant to smart materials behaviour and enhanced multifunctional performance for environmental, energy and medical applications, but excluding device aspects.