Corrosion resistant nanostructured eutectic high entropy alloy

Shuang, Shuo; Ding, Zhaoyi; Chung, Doug Young; Shi, San-Qiang; Yang, Yong

doi:10.1016/j.corsci.2019.108315

Cited by 207 publications

(40 citation statements)

References 145 publications

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“…In their study, Zhou et al stated that HEAs have the potential to become matrix material for tungsten heavy alloys used as kinetic energy bullets [85]. HEAs also can be used in other potential applications in different fields and have become promising advanced materials that satisfy sensitive service conditions, especially in the military, defense and aviation industries [86][87][88].…”

Section: Electrical and Magnetic Propertiesmentioning

confidence: 99%

Yüksek Entropili Alaşımlar: üretimi, özellikleri ve kullanım alanları

Özkan¹,

Karaoğlanli²

2020

El-Cezeri Fen Ve Mühendislik Dergisi

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High entropy alloys (HEA) are composed of elements with atomic concentrations between 5% and 35%, unlike conventional alloys. This new generation of metallic materials has found utilization areas in many engineering applications due to their remarkable properties. High entropy effect, lattice distortion effect, sluggish diffusion effect, and cocktail effect are what give HEAs their properties. In addition to the mentioned effects, basic information regarding the definition, properties, production methods, utilization areas and recent studies of HEAs are given in this study. Furthermore, the recent developments in related areas such as the production of HEAs designed according to the targeted superior characteristics, transfer of outputs to applicable technologic fields, making the advantages of their superior features available in specific application areas such as military, defense and aerospace systems, were presented.

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Section: Electrical and Magnetic Propertiesmentioning

confidence: 99%

Yüksek Entropili Alaşımlar: üretimi, özellikleri ve kullanım alanları

Özkan¹,

Karaoğlanli²

2020

El-Cezeri Fen Ve Mühendislik Dergisi

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“…HEA contains four or more major components and easily forms disordered solid solution [10][11]. Through proper composition design, HEA can be used as an ideal high-per-formance marine engineering coating material owing to its outstanding properties such as good mechanical properties [12][13][14], excellent thermal stability, and corrosion resistance [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Superior corrosion resistance-dependent laser energy density in (CoCrFeNi)95Nb5 high entropy alloy coating fabricated by laser cladding

Wang

Zhang

et al. 2021

Int J Miner Metall Mater

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CoCrFeNi) 95 Nb 5 high entropy alloy (HEA) coatings were successfully fabricated on a substrate of Q235 steel by laser cladding technology. These (CoCrFeNi) 95 Nb 5 HEA coatings possess excellent properties, particularly corrosion resistance, which is clearly superior to that of some typical bulk HEA and common engineering alloys. In order to obtain appropriate laser cladding preparation process parameters, the effects of laser energy density on the microstructure, microhardness, and corrosion resistance of (CoCrFeNi) 95 Nb 5 HEA coating were closely studied. Results showed that as the laser energy density increases, precipitation of the Laves phase in (CoCrFeNi) 95 Nb 5 HEA coating gradually decreases, and diffusion of the Fe element in the substrate intensifies, affecting the integrity of the (CoCrFeNi) 95 Nb 5 HEA. This decreases the microhardness of (CoCrFeNi) 95 Nb 5 HEA coatings. Moreover, the relative content of Cr 2 O 3 , Cr(OH) 3 , and Nb 2 O 5 in the surface passive film of the coating decreases with increasing energy density, causing corrosion resistance to decrease. This study demonstrates the controllability of a high-performance HEA coating using laser cladding technology, which has significance for the laser cladding preparation of other CoCrFeNi-system HEA coatings.

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“…The HEAs had attracted substantial attention due to their excellent properties, such as high strength/hardness, high wear resistance, high fracture toughness, excellent low temperature performance and structural stability, good corrosion resistance, oxidation resistance, etc. (Juan et al, 2015;Xu et al, 2015;Shang et al, 2017;Chen J. et al, 2018;Jin et al, 2018;Qiu, 2018;Sharma et al, 2018;Shuang et al, 2019;Tian et al, 2019;George et al, 2020;Yao et al, 2020). For instance, Prùša et al (2020) investigated the strengthening mechanism of ultrafine-grained CoCrFeNiNb HEA by mechanical alloying and spark plasma sintering that showed ultra-high strength of 2412 MPa and high hardness of 798 ± 9 HV at 1000 • C. Furthermore, researchers have also realized that rapid oxidation under high temperature conditions limits the high-temperature applicability of HEAs.…”

Section: Introductionmentioning

confidence: 99%

Research Progress of Titanium-Based High Entropy Alloy: Methods, Properties, and Applications

Liu

et al. 2020

Front. Bioeng. Biotechnol.

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With the continuous progress and development in the biomedicine field, metallic biomedical materials have attracted the considerable attention of researchers, but the related procedures need to be further developed. Since the traditional metal implant materials are not highly compatible with the human body, the modern materials with excellent mechanical properties and proper biocompatibility should be developed urgently in order to solve any adverse reactions caused by the long-term implantations. The advent of the high-entropy alloy (HEA) as an innovative and advanced idea emerged to develop the medical implant materials through the specific HEA designs. The properties of these HEA materials can be predicted and regulated. In this paper, the progression and application of titanium-based HEAs, as well as their preparation and biological evaluation methods, are comprehensively reviewed. Additionally, the prospects for the development and use of these alloys in implant applications are put forward.

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Corrosion resistant nanostructured eutectic high entropy alloy

Cited by 207 publications

References 145 publications

Yüksek Entropili Alaşımlar: üretimi, özellikleri ve kullanım alanları

Yüksek Entropili Alaşımlar: üretimi, özellikleri ve kullanım alanları

Superior corrosion resistance-dependent laser energy density in (CoCrFeNi)95Nb5 high entropy alloy coating fabricated by laser cladding

Research Progress of Titanium-Based High Entropy Alloy: Methods, Properties, and Applications

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