设计和制造具有优异耐磨性和耐腐蚀性的多相 TiVCrZrW 薄膜

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

Surface & Coatings Technology Pub Date : 2024-10-30 DOI:10.1016/j.surfcoat.2024.131545

Huanyu Li , Jianxun Qiu , Qiyao Song , Suxuan Du , Xiaofei Ma , Daliang Yu , Shangzhou Zhang , Xin Zhou , Xiaochun He , Wenzhe Wang , Shizeng Dang , Ping Ren

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引用次数: 0

摘要

高熵合金（HEA）具有克服硬度和韧性之间矛盾的潜力，因为它具有双相或多相结构。在不平衡磁控溅射条件下，原子尺寸差异较大的 HEA 薄膜往往会形成非单相结构。本研究基于相图计算模拟，成功设计了一种具有沉积温度诱导相分离的多相 TiVCrZrW 薄膜。有趣的是，在 600 °C 下沉积的 TiVCrZrW 薄膜呈现出多相结构，包括双体心立方（BCC）相和通过旋光分解形成的 Laves 相，实现了硬度和韧性之间的平衡。摩擦学实验表明，多相 TiVCrZrW 薄膜具有优异的耐磨性，最低磨损率为 2.63 × 10-6 mm3/（N-m）。电化学实验表明，多相 TiVCrZrW 膜具有出色的耐腐蚀性，表面形成的 ZrO2 和 Cr2O3 氧化物被动膜有效抑制了腐蚀性溶液。根据这项研究的结果，TiVCrZrW 保护膜在海洋工程的各个领域都有广泛的应用前景。

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Design and fabrication of multiphase TiVCrZrW films with superior wear resistance and corrosion resistance

High entropy alloys (HEAs) have the potential to overcome the conflict between hardness and toughness by incorporating dual-phase or multiphase structures. Under unbalanced magnetron sputtering, HEA films with large atomic size differences tend to form non-monophasic structures. In this study, based on a phase diagram calculation simulation, a multiphase TiVCrZrW film with deposition temperature-induced phase separation was successfully designed. Interestingly, the TiVCrZrW film deposited at 600 °C exhibited a multiphase structure including a double body-centered cubic (BCC) phase and Laves phase by spinodal decomposition, realizing a balance between hardness and toughness. The tribological experiments showed that the multiphase TiVCrZrW film provided superior wear resistance, with a minimum wear rate of 2.63 × 10⁻⁶ mm³/(N·m). The electrochemical experiment demonstrated the outstanding corrosion resistance of the multiphase TiVCrZrW film, and the corrosive solution was effectively inhibited by the ZrO₂ and Cr₂O₃ oxides passive film formed on the surface. According to the results of this study, TiVCrZrW protective films have a wide range of potential applications in various fields of marine engineering.

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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.