High temperature oxidation resistance of W-containing high entropy alloys

Moghaddam, Ahmad Ostovari; Судариков, М. В.; Shaburova, Nataliya; Жеребцов, Д. А.; Живулин, В.Е.; Solizoda, I.A.; Starikov, A.Yu.; Veselkov, Sergey; Samoilova, O. V.; Trofimov, Evgeny

doi:10.1016/j.jallcom.2021.162733

Cited by 31 publications

(7 citation statements)

References 36 publications

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“…[38][39][40] Arc melting is an electrothermal metallurgical method in which electricity is passed between the electrodes or between the electrodes and the material to melt the metal to produce an electric arc. [41][42][43] The arc can be generated by adding direct current or alternating current, but alternating current is unstable and direct current is generally used. [44] From the literature in recent years, many reports on HEAs have been prepared by arc melting and casting.…”

Section: Preparation Methodsmentioning

confidence: 99%

Recent Development and Future Perspectives of High Entropy Alloys for Catalysts

Jin

Guo

et al. 2023

Advanced Sustainable Systems

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High entropy alloys (HEAs) are composed of five or more metal elements with similar proportions. Due to the electronic structure among metal elements, they have abundant active sites and have good catalytic activity and stability as materials. Therefore, they have great promise in electrochemical energy storage and electrocatalysis. This paper reviews the preparation and characterization methods of HEAs, and the applications of HEAs in catalysis, especially the contribution in lithium‐sulfur batteries, but also in Electrolyzed water and other energy storage materials. The challenges of HEAs in catalysis and their future developments are also presented.

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Section: Preparation Methodsmentioning

confidence: 99%

Recent Development and Future Perspectives of High Entropy Alloys for Catalysts

Jin

Guo

et al. 2023

Advanced Sustainable Systems

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“…From PIP (Figure 3a) surface oxidation of these refractory alloy is dominated by Ta unless an element with a lower E 0 value is added (commonly Al, E Al 0 = −1.66 V). 40,41 Given that statistics/probability as manifested in stoichiometry play a role in the nature of these surface oxides, we inferred that PIP could also enhance our understanding of oxidation in high entropy alloys (HEAs).…”

Section: Reaction Conditions and Stoichiometrymentioning

confidence: 99%

Predicting Emergence of Nanoscale Order in Surface Oxides through Preferential Interactivity Parameter

Martin,

Thuo

2024

ACS Nano

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Diffusion and surface oxidation are critical processes in metal alloy designs and use. Surface oxides provide opportunities to improve material properties or performance beyond bulk alterations. Surface oxidation is, however, often oversimplified into a classical diffusion process. Passivating oxide surfaces are also thought to be lacking in complexity or critical information. A closer look, however, shows inherent complexity with kinetics-driven competition between the elements in the process leading to redox-speciation across a very small (nm) thickness. Questions that remain to be answered for a comprehensive understanding of surface oxides are diverse and call for interdisciplinary approaches. By using the thermodynamics-based Preferential Interactivity Parameter (PIP) alongside kinetic consideration, we show how complexity in these oxides can be predicted allowing us to tailor these thin films. We use our work, and that of others, to illustrate predictability while also highlighting that there is still much more to be done.

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“…The protective coatings must possess some crucial characteristics such as mechanical and chemical compatibility with the substrate [6][7][8]. Silicon nitride (Si 3 N 4 ) ceramic is a suitable material for coating production because of its high mechanical properties and good thermal and chemical stability [9,10].…”

Section: Introductionmentioning

confidence: 99%

Optimization of the Si₃N₄ coating formation through plasma spraying on Inconel 738

Najafizadeh,

Ghasempour-Mouziraji,

Shahrani

et al. 2023

Tribology - Materials, Surfaces & Interfaces

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In the present study, the deposition of silicon nitride (Si 3 N 4 ) coating on Inconel 738 through plasma spray has been investigated. For producing the Si 3 N 4 coating, different times (6, 8 and 10 s), different distances of the plasma spray torch from the substrate (30, 35 and 40 mm) and different currents for plasma spraying (3000, 3250 and 3500 A) were employed. For the characterisation of the coatings, SEM (thickness), XRD, micro-hardness and adhesion of the samples were measured. The coatings' surface morphology was investigated through SEM. Based on the experimental results, by using a spraying time of 10 s, a distance of the torch of 40 mm and a current of 3500 A, high microhardness and adhesion of the coatings are obtained. On the other hand, the thickness of the coating increased by reducing the distance and increasing spray time and current.

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High temperature oxidation resistance of W-containing high entropy alloys

Cited by 31 publications

References 36 publications

Recent Development and Future Perspectives of High Entropy Alloys for Catalysts

Recent Development and Future Perspectives of High Entropy Alloys for Catalysts

Predicting Emergence of Nanoscale Order in Surface Oxides through Preferential Interactivity Parameter

Optimization of the Si₃N₄ coating formation through plasma spraying on Inconel 738

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High temperature oxidation resistance of W-containing high entropy alloys

Cited by 31 publications

References 36 publications

Recent Development and Future Perspectives of High Entropy Alloys for Catalysts

Recent Development and Future Perspectives of High Entropy Alloys for Catalysts

Predicting Emergence of Nanoscale Order in Surface Oxides through Preferential Interactivity Parameter

Optimization of the Si3N4 coating formation through plasma spraying on Inconel 738

Contact Info

Product

Resources

About

Optimization of the Si₃N₄ coating formation through plasma spraying on Inconel 738