Enhancing corrosion resistance, hardness, and crack resistance in magnetron sputtered high entropy CoCrFeMnNi coatings by adding carbon

Medina, León Zendejas; Costa, Marcus Vinícius Tavares da; Paschalidou, Eirini‐Maria; Lindwall, Greta; Riekehr, Lars; Korvela, Marcus; Fritze, Stefan; Kolozsvári, S.; Gamstedt, E. Kristofer; Nyholm, Leif; Jansson, Ulf

doi:10.1016/j.matdes.2021.109711

Cited by 28 publications

(28 citation statements)

References 65 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In HCl solution, the corrosion rate of WM is the highest because of the largest grain size and the lowest hardness. Low hardness metals are known to have low corrosion resistance [29][30][31]. In addition, the formed precipitates during the welding process contribute to the highest corrosion rate in the WM zone [32].…”

Section: Discussionmentioning

confidence: 99%

Nephelium lappaceum Extract as an Organic Inhibitor to Control the Corrosion of Carbon Steel Weldment in the Acidic Environment

et al. 2021

View full text Add to dashboard Cite

Organic inhibitors have been considered as an effective way to control the corrosion of carbon steel weldment in an acidic environment. This work proposes a new green organic inhibitor made of extract of rambutan fruit (Nephelium lappaceum) peel and aims at analyzing its corrosion inhibitor properties and protection mechanism. Specimens of carbon steel weldment were tested for their corrosion by using electrochemical and immersion methods in 1 M HCl solution containing 0 to 6 g/L of Nephelium peel (NP) extract. Results showed that, in the same solution, the corrosion rate was measured to be higher on the weld metal zone than that of base metal zone, which could be related to the coarser grain of the weld metal zone and the stability of the formed oxide layer. The addition of NP extract was found to increase the stability of the oxide layer, thus increasing the corrosion resistance of the specimens. The maximum inhibition efficiency of the NP extract was reached at 97% for weld metal with 5 g/L of extract, at 80% for the heat affected zone with 5 g/L, and at 70% for base metal with 4 g/L. This work reveals the particularity of different weldment zones to the different needs of inhibitor concentration for obtaining the optimum corrosion protection.

show abstract

Section: Discussionmentioning

confidence: 99%

Nephelium lappaceum Extract as an Organic Inhibitor to Control the Corrosion of Carbon Steel Weldment in the Acidic Environment

et al. 2021

View full text Add to dashboard Cite

show abstract

“…The thermal expansion coefficients of these alloys are similar to those of ceramics. Cr-Co alloys have a higher thermal expansion coefficient than Ni-Cr [ 20 ]. In cobalt-chromium alloys, two phases coexist: the dominant Co mother phase and the carbide phase (mainly Cr carbides).…”

Section: Characteristics and Toxicity Of Metal Alloy Biomaterialsmentioning

confidence: 99%

Metals Biotribology and Oral Microbiota Biocorrosion Mechanisms

Contuzzi

Casalino

Boccaccio

et al. 2022

JFB

View full text Add to dashboard Cite

During the last decades, metal-based biomaterials have been extensively explored to be used as biocompatible metals for biomedical applications, owing to their superior mechanical properties and corrosion resistance. Consequently, for long-term implanted medical devices, to assure the biomaterials’ reliability, functionality, and biocompatibility, studying the various bio-tribological damage mechanisms to obtain the optimum properties is one of the most important goals. In this review, we consider the most important metal-based biomaterials such as stainless steel, alloys of titanium (Ti), cobalt-chromium (Co-Cr), and Nichel-Titatium (Ni-Ti), as well Magnesium (Mg) alloys and with Tantalum (Ta), emphasizing their characteristics, clinical applications, and deterioration over time. The influence of metal elements on biological safety, including significant effects of metal-based biomaterials in dentistry were discussed, considering the perspectives of surface, mechanical properties, corrosion behaviors, including interactions, bio-mechanisms with tissues, and oral environments. In addition, the role of the oral microbiota was explored due to its role in this erosion condition, in order to further understand the mechanism of metal-based biomaterials implanted on the microflora balance of aerobic and anaerobic bacteria in an oral environment.

show abstract

“…[9,[35][36][37][38] Depending on the chosen method, a film thickness ranging from few nm up to mm can be obtained. Among the reports on thin film growth, magnetron sputtering from disc shaped targets appears to be by far the most commonly used method, see for example the recent work from Zandejas Medina et al [39,40] or by Rao et al [41,42] Magnetron sputtering is a very versatile technique which allows high deposition rates. Recently, we have carried out a study of the growth of CoCrFeNi by DC magnetron sputtering [43] in which we compared the chemical and structural properties of the films grown from two different targets.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Single‐Crystalline CoCrFeNi Thin Films by DC Magnetron Sputtering: A Route to Surface Studies of High‐Entropy Alloys

et al. 2023

View full text Add to dashboard Cite

High‐entropy alloys (HEAs) with their almost limitless number of possible compositions have raised widespread attention in material science. Next to wear and corrosion resistive coatings, their application as tunable electrocatalysts has recently moved into the focus. On the other hand, fundamental properties of HEA surfaces like atomic and electronic structure, surface segregation and diffusion as well as adsorption on HEA surfaces are barely explored. The lack of research is caused by the limited availability of single‐crystalline samples. In the present work, the epitaxial growth of face centered cubic (fcc) CoCrFeNi films on MgO(100) is reported. Their characterization by X‐ray diffraction (XRD), energy dispersive X‐ray spectroscopy (EDX), and transmission electron microscopy (TEM) demonstrates that the layers with a homogeneous and close to equimolar elemental composition are oriented in [100] direction and aligned with the substrate to which they form an abrupt interface. X‐ray photoelectron spectroscopy (XPS), low‐energy electron diffraction (LEED), and angle‐resolved photoelectron spectroscopy are employed to study chemical composition and atomic and electronic structure of CoCrFeNi(100). It is demonstrated that epitaxially grown HEA films have the potential to fill the sample gap, allowing for fundamental studies of properties of and processes on well‐defined HEA surfaces over the full compositional space.

show abstract

Enhancing corrosion resistance, hardness, and crack resistance in magnetron sputtered high entropy CoCrFeMnNi coatings by adding carbon

Cited by 28 publications

References 65 publications

Nephelium lappaceum Extract as an Organic Inhibitor to Control the Corrosion of Carbon Steel Weldment in the Acidic Environment

Nephelium lappaceum Extract as an Organic Inhibitor to Control the Corrosion of Carbon Steel Weldment in the Acidic Environment

Metals Biotribology and Oral Microbiota Biocorrosion Mechanisms

Fabrication of Single‐Crystalline CoCrFeNi Thin Films by DC Magnetron Sputtering: A Route to Surface Studies of High‐Entropy Alloys

Contact Info

Product

Resources

About