Effect of nitriding on microstructure and wear behavior of HVOF sprayed AlxCoCrFeNi (x= 0.4, 0.7, 1.0) high-entropy alloy coatings

Zhou, Yong-kuan; Kang, Jiqiang; Zhang, Jie; Zhu, Shenghuo; Fu, Zhiqiang; Zhu, Lina; She, Dingshun

doi:10.1016/j.intermet.2022.107709

Cited by 26 publications

(6 citation statements)

References 51 publications

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“…As mentioned above, the strength of FCC HEAs/MEAs is relatively low, which greatly limits their industrial application [16,21,24,26,28,31] Adapted with permission. [16,21,24,26,28,31] Copyright 2020, Elsevier.…”

Section: Traditional Strengthening Strategiesmentioning

confidence: 99%

“…[7] At present, it is well known that there are four core effects in HEAs/MEAs, namely, high entropy effect, sluggish diffusion effect, lattice distortion effect, and cocktail effect. [7,8,11] Thanks to these effects, HEAs/MEAs exhibit attractive properties, including but not limited to the high strength, [14][15][16] good ductility, [17][18][19] excellent wear, [20][21][22] radiation, [23][24][25] corrosion, [26,27] high-heat, [28] and oxidation [29][30][31] resistance, and hence have been regarded as promising advanced materials with vast potential applications in various industries, as shown in Figure 1.…”

Section: Introductionmentioning

confidence: 99%

“…Figure 1. Scheme indicating the concepts of compositional design, core effect-property relation, and potential engineering applications of HEAs/ MEAs [16,21,24,26,28,31]. Adapted with permission [16,21,24,26,28,31].…”

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confidence: 99%

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Strategies for Achieving Strength–Ductility Synergy in Face‐Centered Cubic High‐ and Medium‐Entropy Alloys

et al. 2023

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High‐ and medium‐entropy alloys (HEAs/MEAs), also called as multicomponent alloys, are a new class of materials that break through the traditional alloy design concept based on single principal element. However, they do not break away from the magic spell of strength–ductility trade‐off. Therefore, designing HEAs/MEAs with both high strength and high ductility still remains a great challenge nowadays. This article provides a review on the recent progress in mechanical properties of face‐centered cubic (FCC) HEAs/MEAs. First, several traditional strengthening strategies are briefly reviewed, focusing on the strengthening mechanisms and the optimized mechanical properties. Subsequently, various novel strategies for achieving strength–ductility synergy in HEAs/MEAs are summarized, which include lowering the stacking fault energy, regulating the short‐range order, promoting transformation‐induced plasticity, and constructing heterogeneous microstructures. The basic ideas and related underlying mechanisms from these strategies are discussed. Finally, the current challenges and the future outlooks are emphasized and addressed systematically. In brief, the present review is expected to provide a useful guide for the design of HEAs/MEAs with superior mechanical properties.

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Section: Traditional Strengthening Strategiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Strategies for Achieving Strength–Ductility Synergy in Face‐Centered Cubic High‐ and Medium‐Entropy Alloys

et al. 2023

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“…The distortion of the lattice reduces the integrity of the cell, the scattering is enhanced, and the intensity of the diffraction peak decreases. Previous studies [10][11][12] have shown that HEA coatings are mainly composed of one individual-centered cubic structure and one FCC structure. With the increase of large atomic radius Al, the precipitation of the BCC in the HEA coating is conducive to the increase of the elements.…”

Section: Phase Compositions Of the Hea Coatingmentioning

confidence: 99%

The corrosion resistance of Al-Fe-Co-Cr-Ni-Cu high entropy alloy coatings

Niu

Luan

Yan

et al. 2023

J. Phys.: Conf. Ser.

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A high entropy alloy AlxFeCoCrNiCu (x=0.5, 1) coating was prepared by the electron beam evaporation method on the surface of the steel. The influence of aluminum content on the corrosion resistance of the coating is discussed. The obtained results show that the HEA coatings retain the HEA phase structure without any phase change. The polarization curves show that the high entropy alloy coating of Al0.5FeCoCrNiCu had better corrosion resistance in 0.5 mol/L H2SO4 solution and 1 mol/L NaCl solution. This design of the HEA coatings provides a novel method for steel corrosion-resistant materials.

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“…At the same time, there is an increase in the number of publications devoted to the modification of the surface properties of structural materials [8][9][10][11][12], because of which structural changes occur in them with an increase, as a rule, in hardness and microhardness, an increase in their wear resistance while the properties and structure of deeper layers remain unchanged. One of the most promising from the point of view of increasing the strength properties of the material, as well as technologically accessible and simple, are the processes of boriding [13][14][15] and nitriding [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Methods for increasing the cavitation and solid particle erosion resistance of 20GL and 30L steels based on their surface modification

Mednikov,

Tkhabisimov,

Zilova

2024

J. Phys.: Conf. Ser.

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The article presents the results of studies of cavitation and solid particle erosion resistance of samples of 20GL and 30L steels with various surface modification options based on nitriding and boriding processes. Tests for cavitation resistance were carried out according to the ASTM G134-17, and for solid particle erosion resistance - according to the ASTM G76-13. It was revealed that to increase wear resistance, the depth of modification of the considered steels should be at least 80 microns. Based on the totality of cavitation and solid particle erosion studies carried out, the best option for surface modification for 20GL steel is boriding, and for 30L steel nitriding.

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Effect of nitriding on microstructure and wear behavior of HVOF sprayed AlxCoCrFeNi (x= 0.4, 0.7, 1.0) high-entropy alloy coatings

Cited by 26 publications

References 51 publications

Strategies for Achieving Strength–Ductility Synergy in Face‐Centered Cubic High‐ and Medium‐Entropy Alloys

Strategies for Achieving Strength–Ductility Synergy in Face‐Centered Cubic High‐ and Medium‐Entropy Alloys

The corrosion resistance of Al-Fe-Co-Cr-Ni-Cu high entropy alloy coatings

Methods for increasing the cavitation and solid particle erosion resistance of 20GL and 30L steels based on their surface modification

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