Investigation of corrosion and tribological characteristics of annealed CrN/CrAlN coatings deposited by CAE-PVD

Vengesa, Yemurai; Fattah‐alhosseini, Arash; Elmkhah, Hassan; Imantalab, Omid; Keshavarz, Mohsen K.

doi:10.1016/j.ceramint.2022.09.286

Cited by 28 publications

(7 citation statements)

References 70 publications

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Section: Contact Angle and Surface Energysupporting

confidence: 55%

“…Surface roughness is also a significant factor affecting these contact angles. This study illustrates that as the annealing temperature is increased, surface roughness decreases, leading to a corresponding reduction in contact angle observed during AFM measurements [37][38][39]. The surface energy of Co60Fe20Sm20 thin films increases proportionally with both film thickness and annealing temperature, as depicted in Figure 4.…”

Section: Contact Angle and Surface Energymentioning

confidence: 52%

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Studying the Effects of Annealing and Surface Roughness on Both the Magnetic Property and Surface Energy of Co60Fe20Sm20 Thin Films on Si(100) Substrate

Liu,

Chang,

Chiang

et al. 2023

Coatings

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In this study, Co60Fe20Sm20 alloy was employed for sputter deposition onto Si(100) substrate within a high vacuum environment, and subsequent thermal treatment was conducted using a vacuum annealing furnace. Thorough measurements and analyses were carried out to evaluate how various film thicknesses and annealing temperatures affect the material. The investigations encompassed observations of structural and physical properties, magnetic traits, mechanical behavior, and material adhesion. The results from the four-point probe measurements clearly demonstrate a trend of decreasing resistivity and sheet resistance with increasing film thickness and higher annealing temperature. Analysis through atomic force microscopy (AFM) shows that heightened annealing temperature corresponds to decreased surface roughness. Furthermore, when analyzing low-frequency alternating current magnetic susceptibility (χac), it became evident that the maximum magnetic susceptibility value consistently rises with increased film thickness, regardless of the annealing temperature. Through magnetic force microscopy (MFM) observations of magnetic domain images in the films, it became apparent that there was a noticeable reduction in the brightness contrast of the magnetic domains. Furthermore, nanoindentation analysis reveals a clear trend. Elevating the film thickness leads to a reduction in both hardness and Young’s modulus. Contact angles range between 67.7° and 83.3°, consistently under 90°, highlighting the hydrophilic aspect. Analysis of surface energy demonstrates an escalation with increasing film thickness, and notably, annealed films exhibit a substantial surge in surface energy. This signifies a connection between the reduction in contact angle and the observed elevation in surface energy. Raising the annealing temperature causes a decline in surface roughness. To summarize, the surface roughness of CoFeSm films at different annealing temperatures significantly impacts their magnetic, electrical, and adhesive properties. A smoother surface reduces the pinning effect on domain walls, thus enhancing the χac value. Furthermore, diminished surface roughness leads to a decline in the contact angle and a rise in surface energy. Conversely, rougher surfaces exhibit higher carrier conductivity, contributing to a reduction in electrical resistance.

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Section: Contact Angle and Surface Energysupporting

confidence: 55%

Section: Contact Angle and Surface Energymentioning

confidence: 52%

Studying the Effects of Annealing and Surface Roughness on Both the Magnetic Property and Surface Energy of Co60Fe20Sm20 Thin Films on Si(100) Substrate

Liu,

Chang,

Chiang

et al. 2023

Coatings

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“…The CrAlN phase crystallizes during the deposition when Al atoms inter into the CrN phase. At the same time, Cr atoms are substituted by Al atoms, resulting in a combination of CrN, Cr2N, and AlN phases that are present in the deposited CrAlN layer 29 . XRD patterns (JCPDS No.…”

Section: Resultsmentioning

confidence: 99%

The effect of substrate bias voltage on the mechanical and electrochemical corrosion properties of multilayered CrN/CrAlN coatings produced by cathodic arc evaporation

Baseri

Mohammadi

Ghatee

et al. 2023

Int J Applied Ceramic Tech

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The Multilayer CrN/CrAlN film was deposited on the SS420 substrate by cathodic arc evaporation technique. The effect of substrate bias‐voltage was investigated on the microstructure, surface morphology, and mechanical and electrochemical corrosion properties of the deposited film. The deposited CrN/CrAlN coatings were characterized by XRD and FESEM techniques. Mechanical properties, corrosion resistance, and surface morphology of the coated samples were studied by nano‐indentation, polarization method, electrochemical impedance spectroscopy, and atomic force microscopy, respectively. Adhesive and dense nanostructure CrN and CrAlN phases were successfully deposited on the substrate. The refinement of the coating crystallite was observed from 31.2 to 24.3 nm by increasing the substrate bias voltage, this improved the mechanical properties of the coating. The number of macroparticles, the number of pinholes and porosities, and the surface roughness of coatings significantly decreased by increasing the substrate bias voltage. The CrN/CrAlN coating reduced the corrosion current density in contrast to the SS420 substrate. Better corrosion resistance was obtained for the coating deposited at 150 V of bias voltage due to lower defects in the film structure.This article is protected by copyright. All rights reserved

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“…Several studies have been performed within the field of CrAlN coatings research (16,28). The distinctive aspect of this study, in comparison to previous research, involves the utilization of two distinct substrates, including pure Ti and Ti6Al4V, and the subsequent evaluation of their respective corrosion characteristics in relation to one another.…”

Section: Introductionmentioning

confidence: 99%

Corrosion Behavior Evaluation of Nanolayered CrN/CrAlN Coatings on Titanium and Ti6Al4V Substrates

Fereshteh-Saniee,

Elmkhah,

Molaei

et al. 2024

IJE

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In recent years, implants are used as prostheses to replace and protect bone. Titanium, as an implantable material, needs to improve corrosion and wear properties for better performance. Therefore, in the current study nitride coatings were applied with the aim of improving corrosion and wear properties. Cathodic arc evaporation physical vapor deposition (CAE-PVD) technique was used to deposit nanolayered CrN/CrAlN coatings on commercially pure titanium and Ti6Al4V substrates for biomaterial applications. X-ray diffraction (XRD) was used to characterize the crystal structure of the coating, and scanning electron microscopy (SEM) and field emission scanning electron microscopy (FESEM) were utilized to observe the surface morphology and cross-section of the coating. The coating adhesion was measured according to VDI 3198 standard using a Rockwell-C indenter. The corrosion behavior was evaluated by potentiodynamic polarization and spectroscope electrochemical impedance in Ringer's solution. The results showed that the nanolayered coating changed the corrosion potential from -0.368 V to -0.054 V for the titanium sample and from -0.405 V to -0.028 V for the Ti6Al4V specimen. Additionally, the corrosion current density was reduced to about eighth -one and a third for the titanium and Ti6Al4V coated samples, respectively. The capacitator circle diameters increased due to the deposition of CrN/CrAlN coating, demonstrating enhanced corrosion behavior of the coated samples compared to uncoated specimens, as the coating acted as a barrier against corrosive liquids accessing the substrate.

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Investigation of corrosion and tribological characteristics of annealed CrN/CrAlN coatings deposited by CAE-PVD

Cited by 28 publications

References 70 publications

Studying the Effects of Annealing and Surface Roughness on Both the Magnetic Property and Surface Energy of Co60Fe20Sm20 Thin Films on Si(100) Substrate

Studying the Effects of Annealing and Surface Roughness on Both the Magnetic Property and Surface Energy of Co60Fe20Sm20 Thin Films on Si(100) Substrate

The effect of substrate bias voltage on the mechanical and electrochemical corrosion properties of multilayered CrN/CrAlN coatings produced by cathodic arc evaporation

Corrosion Behavior Evaluation of Nanolayered CrN/CrAlN Coatings on Titanium and Ti6Al4V Substrates

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