Corrosion behaviour of CrN/Cr multilayers on stainless steel deposited by unbalanced magnetron sputtering

Godoy, Yuri Lizbeth Chipatecua; Olaya, Jhon J; Arias, D.

doi:10.1016/j.vacuum.2012.01.016

Cited by 62 publications

(58 citation statements)

References 50 publications

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“…Finally, our study indicates that all of our CrN/CrAlN and Cr/CrN/CrAlN multilayer coatings present better behavior against aggressive chloride ions (Cl À ) when compared to similar CrAlN based coatings, as reported in other studies [35,37,38,41,42]. Yet, each of our coatings exhibited different electrochemical behaviors.…”

Section: Sem Investigationssupporting

confidence: 80%

“…One method to alleviate this behavior is by depositing a multilayer coating rather than a single layer coating. The increased number of interfaces can significantly improve the corrosion resistance of the coating/substrate system [34,35]. Like wear, corrosion can occur via numerous mechanisms.…”

Section: Electrochemical Testsmentioning

confidence: 99%

“…These results seem to indicate that the thickest coating system had a lower CPE1 value and higher charge transfer resistance. Chipatecua et al [35] explained that electrolyte diffusion through the thinner coating took less time because of shorter path length, and rapidly produced a dense, passive oxide film at the bottom of the permeable defects.…”

Section: Electrochemical Impedance Spectroscopy Measurementsmentioning

confidence: 99%

“…The total polarization resistance (R p ) is taken as the sum of all resistances obtained from the EIS results [31,33,35,38,40]:…”

Section: Electrochemical Impedance Spectroscopy Measurementsmentioning

confidence: 99%

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Tribological and electrochemical performances of Cr/CrN and Cr/CrN/CrAlN multilayer coatings deposited by RF magnetron sputtering

Beliardouh

Bouzid

Nouveau

et al. 2015

Tribology International

112

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is an open access repository that collects the work of Arts et Métiers ParisTech researchers and makes it freely available over the web where possible. a b s t r a c tCrN/CrAlN and Cr/CrN/CrAlN multilayers were grown with dual RF magnetron sputtering. The application of these multilayers will be wood machining of green wood. That is why ball-on-disc and electrochemical tests in NaCl aqueous solution were realized to elucidate the tribological and corrosion behavior of these coatings as they will be exposed to wear and corrosion during wood machining process. The samples/alumina and samples/WC coupling showed different wear mechanisms. The 300 nm thick Cr/CrN/CrAlN multilayer demonstrated the best tribological behavior and corrosion resistance. The influence of growth defects on corrosion resistance has been shown. .

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Section: Sem Investigationssupporting

confidence: 80%

Section: Electrochemical Testsmentioning

confidence: 99%

Section: Electrochemical Impedance Spectroscopy Measurementsmentioning

confidence: 99%

“…The total polarization resistance (R p ) is taken as the sum of all resistances obtained from the EIS results [31,33,35,38,40]:…”

Section: Electrochemical Impedance Spectroscopy Measurementsmentioning

confidence: 99%

See 2 more Smart Citations

Tribological and electrochemical performances of Cr/CrN and Cr/CrN/CrAlN multilayer coatings deposited by RF magnetron sputtering

Beliardouh

Bouzid

Nouveau

et al. 2015

Tribology International

112

View full text Add to dashboard Cite

show abstract

“…Many studies were focused on titanium and chromium nitride as protective coatings [1][2][3][4][5]. Due to their mechanical stability Mo-N coatings make a good candidate for wear resistant coatings in tribological applications [6].…”

Section: Introductionmentioning

confidence: 99%

Correlation between mechanical and microstructural properties of molybdenum nitride thin films deposited on silicon by reactive R.F. magnetron discharge

Bouaouina

Besnard

Abaidia

et al. 2018

Surface and Coatings Technology

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is an open access repository that collects the work of Arts et Métiers ParisTech researchers and makes it freely available over the web where possible. A B S T R A C TMolybdenum nitride thin films were deposited on (100) silicon substrates by R.F. magnetron sputtering of a Mo target in a (Ar-N 2 ) gas mixtures. The films were studied by Scanning Electron Microscopy (SEM), Energy Dispersive Spectroscopy (EDS) and X-ray diffraction. The nanomechanical properties have been determined by nanoindentation and Peak-Force Quantitative Nanomechanical Mapping (PF-QNM). The total internal stresses were determined by curvature measurements and the Stoney formula. As thin film composition influences the morphology, the stress state and the mechanical properties, modifications are expected in this study where the nitrogen content is tuned. The film exhibits a polycrystalline structure with preferred orientation along (111) plane. The increase of the nitrogen content in the coating (N/ Mo = 1.1) induces a broadening of the full width at half maximum (FWHM) of the (111) diffraction peak, which is attributed to the presence of smaller crystallites. The residual stress and mechanical properties variation were correlated to the structural transition from γ-Mo 2 N to hexagonal and cubic MoN. The results show a good agreement between the nanomechanical properties obtained by nanoindentation and PF-QNM.

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Chromium Coatings Applied to Zr Alloy Claddings by Cathodic Arc Ion Plating: Effect of Nitrogen Inclusion on Limiting Columnar Defects

Yoon,

Choi,

Yeo

et al. 2024

Adv Eng Mater

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The effect of nitrogen on an anticorrosive Cr coating for the Zr alloy cladding of nuclear fuel rods is investigated. It is aimed to reduce the number of typical columnar defects generated in Cr‐based coatings when using the cathodic arc ion plating method through reactive nitrogen inclusion and improve the oxidation resistance. Under a working pressure of 5 Pa and an arc current of 60 A in a chrome target, Cr‐based coatings are fabricated under varying N2/Ar gas flow ratios and substrate biases. The growth structures, crystallography, and corrosion behavior of the coatings are characterized using scanning electron microscopy, X‐ray diffraction, and potentiodynamic polarization tests. The Cr coating exhibits a typical columnar structure with voids, pores, and columnar defects. In comparison, through nitrogen inclusion, when the nitrogen content of the Cr‐based coating is less than 15 at%, the Cr(N) coating shows a “featureless structure” similar to an amorphous structure, resulting in fewer voids and defects. Potentiodynamic polarization tests reveal that the Cr(N) coating, featuring a distorted body‐centered cubic‐Cr structure, exhibits a significantly low corrosion current in the passive region. The protection efficiency of the Cr(N) coating is calculated to be 96.9%, confirming its superior substrate protection capabilities compared with chromium nitride coatings.

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Corrosion behaviour of CrN/Cr multilayers on stainless steel deposited by unbalanced magnetron sputtering

Cited by 62 publications

References 50 publications

Tribological and electrochemical performances of Cr/CrN and Cr/CrN/CrAlN multilayer coatings deposited by RF magnetron sputtering

Tribological and electrochemical performances of Cr/CrN and Cr/CrN/CrAlN multilayer coatings deposited by RF magnetron sputtering

Correlation between mechanical and microstructural properties of molybdenum nitride thin films deposited on silicon by reactive R.F. magnetron discharge

Chromium Coatings Applied to Zr Alloy Claddings by Cathodic Arc Ion Plating: Effect of Nitrogen Inclusion on Limiting Columnar Defects

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