阴极电弧蒸发沉积Ti1-x-y(HfNbTaZr)xAlyN涂层的抗氧化性能研究

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

Surface & Coatings Technology Pub Date : 2025-05-20 DOI:10.1016/j.surfcoat.2025.132304

Hua D. Zhang , Jian W. Du , Li Chen , Yi Kong , She Q. Wang

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引用次数: 0

摘要

本文研究了不同成分（x = 0-0.48, y = 0.38-0.40）的Ti1-x-y(HfNbTaZr)xAlyN涂层的抗氧化性能。850℃/10 h等温氧化表明，中间添加物（x = 0.05, 0.09）分别形成了~0.21 μm和~ 0.19 μm的薄氧化层，而其他涂层（x = 0或≥0.25）完全氧化。理论分析表明，优化后的组分（x = 0.05, 0.09）具有协同机制：在1073 K时优先生成r-TiO2，在高温下抑制TiO2相变，并形成顶部富al氧化物层。相反，过量的me -add （x≥0.25）促进了更多的Me-O和更少的AlO键的流行。这些混合氧化物的多孔和松散的结构特点以及氧化铝层的低保护降低了它们的抗氧化性。这些发现确立了化学复杂性优化而不是熵最大化作为更高抗氧化性的控制原则。

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Exploring the oxidation resistance of Ti1-x-y(HfNbTaZr)xAlyN coatings deposited by cathodic arc evaporation

This study investigated the oxidation resistance of Ti_1-x-y(HfNbTaZr)_xAl_yN coatings with broad compositions (x = 0–0.48, y = 0.38–0.40). Isothermal oxidation at 850 °C/10 h reveals that intermediate additions (x = 0.05, 0.09) developed thin oxide layers of ~0.21 μm and ~ 0.19 μm, respectively, while other coatings (x = 0 or ≥ 0.25) completely oxidized. Theoretical analyses demonstrate synergistic mechanisms in optimized compositions (x = 0.05, 0.09): the preferential formation of r-TiO₂ at 1073 K, the suppression of the TiO₂ phase transition and the accumulation of a top Al-rich oxide layer at elevated temperatures. Conversely, excessive Me-additions (x ≥ 0.25) promoted the prevalence of more Me-O and fewer AlO bonds. The porous and loose structural characteristics of these mixed oxides and the lower protection of the aluminum oxide layer deteriorate their oxidation resistance. These findings establish chemical complexity optimization rather than entropy maximization as the governing principle for higher oxidation-resistant.

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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.