Mechanical, tribological, anti-corrosion and anti-glass sticking properties of high-entropy TaNbSiZrCr carbide coatings prepared using radio-frequency magnetron sputtering

Kao, W. H.; Su, Yean-Liang; Horng, Jeng Haur; Wu, Wen-Chien

doi:10.1016/j.matchemphys.2021.124741

Cited by 20 publications

(9 citation statements)

References 58 publications

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“…MS is a process of depositing molten metal droplets on a target in a specific atmosphere through a magnetic field to form a thin film, as shown in Figure 13, which can significantly enhance wear, corrosion and high-temperature resistance of the parts. Although the disadvantages including lower target utilization and difficult preparation of magnetic materials exist [58][59][60], MS has become one of the most commonly used methods due to its high efficiency and low cost among thinfilms RHEA coating preparation methods. Kao et al [60] fabricated (TaNbSiZrCr)C x RHEA thin films using MS in a mixed atmosphere of Ar and C 2 H 2 .…”

Section: Deposition Techniquesmentioning

confidence: 99%

“…Although the disadvantages including lower target utilization and difficult preparation of magnetic materials exist [58][59][60], MS has become one of the most commonly used methods due to its high efficiency and low cost among thinfilms RHEA coating preparation methods. Kao et al [60] fabricated (TaNbSiZrCr)C x RHEA thin films using MS in a mixed atmosphere of Ar and C 2 H 2 . Hruška et al [61] deposited two HfNbTaTiZr RHEA films with thicknesses of 380 nm and 1650 nm on fused silica substrates by DC MS at room temperature, and found hard to avoid oxygen infiltration into HfNbTaTiZr films containing nanoscale open volumes favorable for hydrogen absorption, as shown in Figure 14.…”

Section: Deposition Techniquesmentioning

confidence: 99%

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Research Progress of Refractory High Entropy Alloys: A Review

Xie

Liu

et al. 2022

Chin. J. Mech. Eng.

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Owing to superior comprehensive performance than conventional superalloys at high temperature, refractory high entropy alloy (RHEA) is becoming a promising candidate for the next generation high-temperature material. Herein, contemporary aspects of corresponding development of RHEAs are reviewed to discuss various factors affecting the organization structure and service performance. It mainly covers alloying system and strengthening mechanism, the preparation method, plastic deformation and the related mechanism, as well as microstructure control by heat treatment. Firstly, the alloy systems and strengthening mechanism are introduced. This is followed by different preparation methods and the comparison of strengths and shortcomings based on different RHEAs. Then, hot deformation behavior and plastic deformation under different loadings are analyzed. Based on this, the influence of heat treatment on microstructures prior to and after the deformation is further summarized. Finally, some important research areas to be carried out in future are pointed out. This review will give a deep understanding of the effects of different factors on the service performance and provide scientific guide in designing RHEAs with improved performance.

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Section: Deposition Techniquesmentioning

confidence: 99%

Section: Deposition Techniquesmentioning

confidence: 99%

Research Progress of Refractory High Entropy Alloys: A Review

Xie

Liu

et al. 2022

Chin. J. Mech. Eng.

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“…The NEC films with lower atomic mobility caused by the 'sluggish diffusion effect' showed more stable crystallisation than the TaWC films. The possibility of preparing HEC coatings by scattering HEA target was proved and reported [73,74]. To produce high entropy TiZrHfVNbTa carbide coatings, the high entropy TiZrHfVNbTa alloys were melted in a vacuum-arc in argon and used as a target [73].…”

Section: Hec Coatings and Filmsmentioning

confidence: 99%

“…The possibility of preparing HEC coatings by scattering HEA target was proved and reported [73,74]. To produce high entropy TiZrHfVNbTa carbide coatings, the high entropy TiZrHfVNbTa alloys were melted in a vacuum-arc in argon and used as a target [73].…”

Section: Preparation Of Hecsmentioning

confidence: 99%

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Processing and properties of high entropy carbides

Wang

2021

Advances in Applied Ceramics

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High entropy carbides (HECs) are novel materials developed in recent years that have attracted a lot of research interests. Unlike traditional carbides (containing one or two metals), HECs with multiple metals could form a very large number of different compositions that could have interesting and promising properties. The high entropy effect stabilises multi-component carbide phases and forms compositions that might otherwise not be stable. After several years of investigation of HECs, several methods of synthesising HECs have been developed. The microstructures and properties of HECs have been studied and compared with traditional carbides. Many interesting discoveries in HECs have been made. This paper reviews the theories, technologies, findings and insights gained from previous studies on HECs. The basic theory of HECs, the prediction of synthesisability of HEC phases from theoretical calculations, and some rules observed from experimental results are summarised. The preparation methods of HECs (powders, coatings, films and ceramics) and their microstructures are reviewed. Their properties, including thermal and electrical, mechanical and tribological, and oxidation, irradiation, and corrosion resistance of HECs are reviewed and discussed. Compared with traditional carbides, there is a great potential to develop new HECs due to their designable and complex compositions, and this review can guide future studies.

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Atomic Radius Mismatch: A Key Parameter for Design and Synthesis of High‐Entropy Physical Vapor Deposition Coatings—Review

Lotfi‐Khojasteh,

Elmkhah,

Nouri

et al. 2024

Adv Eng Mater

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High‐entropy metal sublattice coatings (HESCs) prepared by physical vapor deposition (PVD) have received attention due to their diverse range of properties and applications. One of the most critical requirements for their synthesis is the prediction and control of their wide‐spread properties, and several efforts have been undertaken using various thermodynamical parameters. The majority of these predictions concentrate on high‐entropy alloys (HEAs) while high‐entropy ceramics (HECs) received little attention. One of the most important parameters to control the structure and properties of HEAs is their atomic radius mismatch (δr), which we apply to crystalline, amorphous, and composite (amorphous matrix, crystalline matrix, and multilayer) HESCs. Based on the relationships between δr and structure, mixing enthalpy (ΔHmix), electronegativity difference (Δχ), ion bonding percentage (IBPHE), mechanical properties (including hardness, H, and Young’s modulus, E), and wear performance descriptors (H/E and H3/E2 ratios) we provide a δr‐based map to aid the design and selection of elements for HESCs.This article is protected by copyright. All rights reserved.

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Mechanical, tribological, anti-corrosion and anti-glass sticking properties of high-entropy TaNbSiZrCr carbide coatings prepared using radio-frequency magnetron sputtering

Cited by 20 publications

References 58 publications

Research Progress of Refractory High Entropy Alloys: A Review

Research Progress of Refractory High Entropy Alloys: A Review

Processing and properties of high entropy carbides

Atomic Radius Mismatch: A Key Parameter for Design and Synthesis of High‐Entropy Physical Vapor Deposition Coatings—Review

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