Investigation of microstructure, mechanical properties, and biocorrosion behavior of Ti1.5ZrTa0.5Nb0.5W0.5 refractory high-entropy alloy film doped with Ag nanoparticles

Alamdari, Armin Asghari; Ünal, Uğur; Motallebzadeh, Amir

doi:10.1016/j.surfin.2021.101617

Cited by 10 publications

(12 citation statements)

References 68 publications

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“…Ag nanoparticles are doped in the surface of Ti 1.5 ZrTa 0.5 Nb 0.5 W 0.5 HEAs using radio frequency (RF) magnetron sputtering. [39,40] The elemental segregation is not found in transmission electron microscopy (TEM)-EDS elemental mapping. The antibacterial properties are tested by colony forming units using incubation with P. aeruginosa (gram-negative) and S. aureus (gram-positive).…”

Section: Antibacterial Propertiesmentioning

confidence: 99%

Corrosion‐Resistant Biomedical High‐Entropy Alloys: A Review

Shi,

Fang,

Liaw

et al. 2023

Adv Eng Mater

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High entropy alloys (HEAs) exhibit the outstanding properties, such as excellent antibacterial property, remarkable biocompatibility, and superior corrosion resistance, in the field of biomedical applications. Herein, we summarize the biomedical function of HEAs in aspects of the antibacterial behavior against planktonic gram‐negative/gram‐positive bacteria and biofilms, the biocompatibility inspired by low‐ cytotoxicity alloying elements. Considering the corrosive service environment of biomedical device, the corrosion behavior and mechanism are discussed in terms of alloying elements (Al, Ni, Cr, and Cu) and microstructure (phase composition and grain size). Additionally, the promising approaches to simultaneously achieve biomedical function and corrosion resistance, the possible application of additive manufacturing, and the prospective effects of short‐range orderings on the corrosion resistance are simply discussed.This article is protected by copyright. All rights reserved.

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Section: Antibacterial Propertiesmentioning

confidence: 99%

Corrosion‐Resistant Biomedical High‐Entropy Alloys: A Review

Shi,

Fang,

Liaw

et al. 2023

Adv Eng Mater

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“…The sluggish diffusion effect of W-containing RHEAs makes an alloy’s surface less susceptible to diffusion after corrosion in corrosive environments. Studies have shown that W-containing RHEAs can exhibit excellent corrosion resistance in acidic and salt solutions, such as sulfuric acid [ 20 , 159 ] and NaCl solution [ 135 , 160 , 161 , 162 , 163 , 164 , 165 ]. Since the corrosion resistance is significantly related to the elemental compositions, regulating the elemental compositions of RHEAs can improve the corrosion resistance.…”

Section: Functional Properties Of W-containing Rheasmentioning

confidence: 99%

Recent Advances in W-Containing Refractory High-Entropy Alloys—An Overview

Chen

Chen²,

Liu³

et al. 2022

Entropy

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During the past decade, refractory high-entropy alloys (RHEA) have attracted great attention of scientists, engineers and scholars due to their excellent mechanical and functional properties. The W-containing RHEAs are favored by researchers because of their great application potential in aerospace, marine and nuclear equipment and other high-temperature, corrosive and irradiated fields. In this review, more than 150 W-containing RHEAs are summarized and compared. The preparation techniques, microstructure and mechanical properties of the W-containing RHEAs are systematically outlined. In addition, the functional properties of W-containing RHEAs, such as oxidation, corrosion, irradiation and wear resistance have been elaborated and analyzed. Finally, the key issues faced by the development of W-containing RHEAs in terms of design and fabrication techniques, strengthening and deformation mechanisms, and potential functional applications are proposed and discussed. Future directions for the investigation and application of W-containing RHEAs are also suggested. The present work provides useful guidance for the development, processing and application of W-containing RHEAs and the RHEA components.

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“…These catalysts, particularly alloys of iron (Fe), nickel (Ni), and cobalt (Co), owe their high efficiency to superior adsorption properties facilitated by the combined sites on the alloy surfaces. Consequently, these transition metal alloys have been effectively employed as highly efficient OER electrocatalysts. , In addition to improving mechanical properties, immunity to corrosion, and catalytic efficiency, combining and alloying dissimilar metals can result in a broad range of beneficial physical and chemical characteristics. , …”

Section: Introductionmentioning

confidence: 99%

“…12,13 In addition to improving mechanical properties, immunity to corrosion, and catalytic efficiency, combining and alloying dissimilar metals can result in a broad range of beneficial physical and chemical characteristics. 14,15 This article is licensed under CC-BY 4 Recent research efforts have concentrated on creating catalysts that do not rely on expensive noble metals, aiming for affordability. An ideal catalyst, formulated from cheap transition metals, is anticipated to achieve a metal−hydrogen (M−H) bond strength that rivals that of platinum (Pt).…”

Section: Introductionmentioning

confidence: 99%

Exploring the Role of Mo and Mn in Improving the OER and HER Performance of CoCuFeNi-Based High-Entropy Alloys

Asghari Alamdari,

Jahangiri,

Yagci

et al. 2024

ACS Appl. Energy Mater.

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High-entropy alloys (HEAs) are a class of metallic materials composed of solid solutions of five or more elements in equi-or near-equiatomic proportions. The fascinating properties of HEAs have recently attracted considerable attention for watersplitting applications. Mechanical alloying (MA) is a method for preparing HEAs that results in crystalline, homogeneous materials at room temperature. In this work, several CoCuFeNi-based HEAs were prepared through MA and evaluated as electrocatalysts for the oxygen evolution reaction (OER), hydrogen evolution reaction (HER), and overall water splitting in 1 M KOH. The results showed that CoCuFeNiMnMo 1.5 with the highest amount of molybdenum exhibited the best OER performance (375 ± 15 mV at the current density of 10 mA cm −2 ), and CoCuFeNiMnMo 0.5 with the lowest amount of molybdenum exhibited the best HER activity with lower overpotentials (275 ± 12 mV at the current density of 10 mA cm −2 ) and over 72 h of stability. The assembled CoCuFeNiMnMo 1.5 (anode)∥CoCuFeNiMnMo 0.5 (cathode) couple required 1.76 V to produce 10 mA cm −2 , and the Faradaic efficiency for generated H 2 was determined to be more than 80%.

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Investigation of microstructure, mechanical properties, and biocorrosion behavior of Ti1.5ZrTa0.5Nb0.5W0.5 refractory high-entropy alloy film doped with Ag nanoparticles

Cited by 10 publications

References 68 publications

Corrosion‐Resistant Biomedical High‐Entropy Alloys: A Review

Corrosion‐Resistant Biomedical High‐Entropy Alloys: A Review

Recent Advances in W-Containing Refractory High-Entropy Alloys—An Overview

Exploring the Role of Mo and Mn in Improving the OER and HER Performance of CoCuFeNi-Based High-Entropy Alloys

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