Effect of nitrogen flow rates on the structural and properties of TiVCrNiSi(N) high entropy coating deposited by arc ion plating

IF 5.3 2区材料科学 Q1 MATERIALS SCIENCE, COATINGS & FILMS

Surface & Coatings Technology Pub Date : 2025-01-30 DOI:10.1016/j.surfcoat.2025.131868

Menghui Cui , Xiaoyun Ding , Yong Lian , Yawen Wu , Jinchao Jiao , Yingchun Cheng , Jinhan Yang , Jin Zhang , Yong Sun

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引用次数: 0

Abstract

The TiVCrNiSi(N) high-entropy coatings were fabricated by adjusting nitrogen flow via arc ion plating. The microstructure, mechanics and high-temperature wear resistance of the coatings were studied. The results show that as the nitrogen flow rates (R_N2) increases, the coating always maintains the BCC structure, and all N exists in solid solution. An amorphous phase exists in all coatings, and the amorphous phase is dispersed in the BCC phase of the coating produced at R_N2 = 40 %. TiVCrNiSi high-entropy coating has the optimal adhesion (L_c2 = 54 N). As the nitrogen flow rates increases, the adhesion of TiVCrNiSi(N) alloy coating increases. The wear rate of TiVCrNiSi(N) coating decreases with increasing nitrogen flow rates. The wear rate of the coating deposited under a R_N2 of 40 % is 0.49 × 10⁻⁵ mm³/(N·m), which is only about 3 % of the Ti6Al4V substrate. The presence of amorphous phase effectively hinders crack propagation. As the nitrogen flow rates increases, the coating wear mechanism changes from abrasive wear to adhesive wear. Therefore, the TiVCrNiSi(N) high-entropy coating prepared by arc ion plating can effectively solve the problems of low hardness and poor high-temperature wear resistance of titanium alloy, and broadens the development path for titanium alloys in wear-resistant conditions.

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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.