Recent advances and outstanding challenges for implementation of high entropy alloys as structural materials

Slobodyan, Mikhail; Pesterev, Evgeniy; Markov, A. B.

doi:10.1016/j.mtcomm.2023.106422

Cited by 19 publications

(4 citation statements)

References 295 publications

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“…The needs of contemporary engineering, on the other hand, have led to the discovery of materials having heterogeneous characteristics[14-17]. FGMs are an example of this shift, since they provide a platform for optimising materials for particular areas within a structure [18][19][20]. The purpose of this study is to offer a thorough knowledge of Functionally Graded Materials and their possible applications in advanced engineering domains.…”

Section: Homogeneity To Heterogeneity Transitionmentioning

confidence: 99%

From Homogeneity to Heterogeneity: Designing Functionally Graded Materials for Advanced Engineering Applications

Kumar,

Dixit,

Haq

et al. 2023

E3S Web Conf.

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The research investigates Functionally Graded Materials (FGMs) and their transformational potential in modern engineering. FGMs, which exhibit progressive property fluctuations, call into question traditional material consistency. This study analyses the growth of FGMs and their importance in solving complex engineering difficulties through historical analysis and real-world case studies. The research dives into the design concepts, material selection, manufacturing procedures, and sophisticated characterisation methodologies that underpin FGM development from a methodological standpoint. Mechanical, thermal, and electrical characteristics, in combination with microstructural progression, offer a thorough knowledge of FGM behaviour. The implications for future engineering advances are highlighted, with a focus on the ability to rethink material design and multifunctional performance. Among the many attractive possibilities, issues in scalability, characterisation, and multidisciplinary cooperation need additional investigation. FGMs represent a paradigm shift from homogeneity to targeted heterogeneity, echoing wider shifts in engineering philosophy and influencing technological development.

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Section: Homogeneity To Heterogeneity Transitionmentioning

confidence: 99%

From Homogeneity to Heterogeneity: Designing Functionally Graded Materials for Advanced Engineering Applications

Kumar,

Dixit,

Haq

et al. 2023

E3S Web Conf.

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“…As such, HEAs provide a wide diversity of electronic and physical structures for electrochemical reactions. [30][31][32] Furthermore, adding more components to HEAs, compared to binary alloy catalysts, significantly reduces the use of noble metals by dilution. In principle, these unique attributes of HEAs have an opportunity to enhance the efficacy of electrochemical hydrogen evolution reaction (HER) over a broad pH range due to their durability and versatile morphologies.…”

Section: Introductionmentioning

confidence: 99%

Universal pH electrocatalytic hydrogen evolution with Au-based high entropy alloys

Jeong,

Branco,

Bollen

et al. 2024

Nanoscale

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“…These properties mean that HEAs demonstrate considerable potential for application in many fields, such as aerospace, the automotive industry, and biomedicine. Thus, they have become a hotspot in materials science research [7,8]. The application of HEAs and their performance in terms of corrosion resistance have not been completely explored; moreover, corrosion is one of the major contributors to material failure in a wide range of industrial and environmental applications, with its impact on the global economy estimated to be as high as 3% of the world's gross national product [9,10].…”

Section: Introductionmentioning

confidence: 99%

Corrosion Behavior of FeCrMnxAlCu High-Entropy Alloys in NaOH Solutions

Yang,

Cui,

Wang

et al. 2024

Metals

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FeCrMnxAlCu (x = 2.0, 1.5, 1.0, 0.5, and 0.0) high-entropy alloys (HEAs) were prepared using vacuum arc melting. The phase structure, microstructure, and element distribution of FeCrMnxAlCu (x = 2.0, 1.5, 1.0, 0.5, and 0.0) HEAs were analyzed using X-ray diffraction, scanning electron microscopy, and energy-dispersive spectroscopy. The corrosion resistance of the alloy in a NaOH solution was evaluated using a potentiodynamic polarization curve, electrochemical impedance spectroscopy, an immersion test, WLI, and X-ray photoelectron spectroscopy. The results showed that FeCrMnxAlCu HEAs are an FCC+BCC bi-phase mixed structure with typical dendrite and interdendrite structures. The corrosion test demonstrated that the HEAs presented a breakthrough characteristic of activation–passivation–passivation. With an increase in Mn content, the corrosion potential shifted first positively and then negatively, and the corrosion current first decreased and then increased. Among HEAs, the FeCrMn0.5AlCu HEA had the best electrochemical corrosion resistance. After corrosion, both oxide and hydroxide corrosion product films were formed on the surface, which reduced the ion diffusion rate, slowed down the corrosion process, and improved the corrosion resistance.

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Recent advances and outstanding challenges for implementation of high entropy alloys as structural materials

Cited by 19 publications

References 295 publications

From Homogeneity to Heterogeneity: Designing Functionally Graded Materials for Advanced Engineering Applications

From Homogeneity to Heterogeneity: Designing Functionally Graded Materials for Advanced Engineering Applications

Universal pH electrocatalytic hydrogen evolution with Au-based high entropy alloys

Corrosion Behavior of FeCrMnxAlCu High-Entropy Alloys in NaOH Solutions

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