Investigation of the Structure and Corrosion Resistance of Novel High-Entropy Alloys for Potential Biomedical Applications

Tokarewicz, Marzena; Grądzka-Dahlke, M.; Rećko, K.; Łępicka, Magdalena; Czajkowska, Kamila

doi:10.3390/ma15113938

Cited by 10 publications

(4 citation statements)

References 35 publications

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“…The corrosion potential (Ecorr), corrosion current density (Icorr), and polarization resistance (Rp) were obtained for each specimen according to both the polarization curve and the Tafel extrapolation method [32]. The corrosion rate of the corroded specimens was calculated from Faraday's law presented in the related literature [33,34]. FESEM examination was also performed to observe the corroded surface appearances of the specimens.…”

Section: Corrosion Testingmentioning

confidence: 99%

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Wear and Corrosion Performance of Ti-6Al-4V Alloy Arc-Coated TiN/CrN Nano-Multilayer Film

Hsu

Lin

Chen

2023

Metals

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The objective of this study was to investigate the effect of varying bias parameters (−50 V, −100 V, and −150 V) on the properties of TiN/CrN multilayer films deposited on Ti-6Al-4V alloy using the cathodic arc deposition (CAD) technique. The deposited films were characterized for their composition, structure, morphology, thickness, adhesion, and hardness. Wear and polarization tests were also conducted to determine the optimal bias condition for wear and corrosion resistance. The results showed that the TiN/CrN films possessed a nano-multilayered structure comprising TiN and CrN phases. The hard coating significantly increased the surface hardness of Ti-6Al-4V alloy up to three–five times. The coated specimens demonstrated superior wear resistance compared to the uncoated, with the −150 V specimen exhibiting the least wear rate. Furthermore, the −150 V specimen had the highest polarization impedance value, indicating the best corrosion resistance compared to the other bias conditions. In short, the use of CAD-coated TiN/CrN multilayer film enhanced the surface properties of Ti-6Al-4V alloy, with the best wear and corrosion resistance achieved at −150 V bias. These novel findings have significant implications for improving the performance and durability of Ti-6Al-4V alloy components in various industrial applications.

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Section: Corrosion Testingmentioning

confidence: 99%

“…Additionally, some literature suggested that the corrosion rate can be calculated using the corrosion current density obtained from the polarization curves [33,34]. In this study, the corrosion rate of the specimens was determined according to the relevant literature, and the results are presented in Figure 15.…”

Section: Analysis Of Corrosion Behaviormentioning

confidence: 99%

Wear and Corrosion Performance of Ti-6Al-4V Alloy Arc-Coated TiN/CrN Nano-Multilayer Film

Hsu

Lin

Chen

2023

Metals

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“…It offers the opportunity to tackle the challenge, as it possesses the capability (high spatial resolution) to perform “pseudo-single-crystal” electrochemistry, which enables the execution of more precise and efficient research on the individual microstructure. For instance, the fusion line region in a dissimilar metal welded joint and specific microstructures of high entropy alloys, − can be profoundly investigated using this technique. The obtained electrochemical properties of specific microstructures, such as the polarization curve of inclusions, can be employed as more accurate (the inclusions constitute all or most of the probed area) input conditions for finite element method (FEM) simulations of microgalvanic effect studies. , It is also an efficient way to verify the ab initio model based on density functional theory to evaluate the anisotropic anodic dissolution behavior (calculated polarization curves) of metals and alloys. , Furthermore, using SECCM is capable of performing high-throughput characterization on some samples (e.g., combinatorial materials chips − and diffusion multiples) to efficiently obtain microelectrochemical big data for establishing a database concerning composition–structure–property relationships.…”

Section: Opportunitiesmentioning

confidence: 99%

Perspectives on Corrosion Studies Using Scanning Electrochemical Cell Microscopy: Challenges and Opportunities

Lai,

Liu,

et al. 2023

Anal. Chem.

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Scanning electrochemical cell microscopy (SECCM) allows for electrochemical imaging at the micro-or nanoscale by confining the electrochemical reaction cell in a small meniscus formed at the end of a micro-or nanopipette. This technique has gained popularity in electrochemical imaging due to its high-throughput nature. Although it shows considerable application potential in corrosion science, there are still formidable and exciting challenges to be faced, particularly relating to the high-throughput characterization and analysis of microelectrochemical big data. The objective of this perspective is to arouse attention and provide opinions on the challenges, recent progress, and future prospects of the SECCM technique to the electrochemical society, particularly from the viewpoint of corrosion scientists. Specifically, four main topics are systematically reviewed and discussed: (1) the development of SECCM; (2) the applications of SECCM for corrosion studies; (3) the challenges of SECCM in corrosion studies; and (4) the opportunities of SECCM for corrosion science.

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“…The high-entropy alloy containing Cr, Ni, and Mo has an excellent corrosion resistance and can be used in the marine field [7]. High-entropy alloys can be utilized in biomedical applications due to their exceptional biocompatibility achieved through composition design [8,9].…”

Section: Introductionmentioning

confidence: 99%

Effect of ZrC on the Microstructure and Properties of CrMnFeCoNi High-Entropy Alloy Coatings Prepared by a Plasma Transferred Arc Process

Huang,

Li,

et al. 2023

Materials

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The low strength caused by the single FCC structure of the CrMnFeCoNi high entropy alloy (HEA) limits its application in the field of coating. Here, we prepared high-entropy alloy coatings of CrMnFeCoNi with different ZrC contents on Q235 steel by a plasma transferred arc process. The effects of ZrC on the microstructure and properties of the CrMnFeCoNi HEA coating were investigated by optical microscopy, scanning electron microscope, and X-ray diffraction and by employing a potensiostat/galvanostat. The results showed that ZrC mainly existed in the coatings as a second phase, having little influence on the main crystal structure and micromorphology of the CrMnFeCoNi HEA coating. The hardness of the CrMnFeCoNi HEA coating increased with the ZrC content. ZrC can effectively improve the corrosion resistance of the CrMnFeCoNi HEA coating. In a 1 mol/L NaCl solution with 4 wt% ZrC, the annual corrosion rate was only 5.997% of that of the HEA coating. Nevertheless, the improvement in the wear resistance of CrMnFeCoNi high-entropy alloy coatings was not apparent with the addition of ZrC. Consequently, the addition of ZrC to the FeCoCrNiMn high-entropy alloy coating holds promise for applications in corrosion resistance, particularly in oceanic environments.

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Investigation of the Structure and Corrosion Resistance of Novel High-Entropy Alloys for Potential Biomedical Applications

Cited by 10 publications

References 35 publications

Wear and Corrosion Performance of Ti-6Al-4V Alloy Arc-Coated TiN/CrN Nano-Multilayer Film

Wear and Corrosion Performance of Ti-6Al-4V Alloy Arc-Coated TiN/CrN Nano-Multilayer Film

Perspectives on Corrosion Studies Using Scanning Electrochemical Cell Microscopy: Challenges and Opportunities

Effect of ZrC on the Microstructure and Properties of CrMnFeCoNi High-Entropy Alloy Coatings Prepared by a Plasma Transferred Arc Process

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