Possibilities of structural engineering in multilayer vacuum-arc ZrN/CrN coatings by varying the nanolayer thickness and application of a bias potential

Sоbоl, O. V.; Андреев, А. А.; Gorban, V. F.; Stolbovoy, V. А.; Melekhov, A. A.; Postelnyk, А. А.

doi:10.1134/s1063784216070252

Cited by 22 publications

(10 citation statements)

References 6 publications

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“…Some studies have shown that the multilayer coatings have excellent mechanical, tribological, and corrosion properties such as very high hardness, corrosion stability and wear resistance [6,11] compared to most commonly used binary (like CrN, TiN, HbN, and ZrN) [5,12] and ternary single layer coatings (like TiCN, TiAlN, and VCN). The enhancement of these properties is ascribed to the nanoscale structure of the multilayers coatings that was gained by deposited alternate layer of two different materials, thickness in nanometric size, and many interfaces [9,10,13,14].…”

Section: Introductionmentioning

confidence: 99%

“…The enhancement of these properties is ascribed to the nanoscale structure of the multilayers coatings that was gained by deposited alternate layer of two different materials, thickness in nanometric size, and many interfaces [9,10,13,14]. In some protective coating applications, the ZrN/CrN multilayer has been used because they have the best adhesion and mechanical properties, radiation stability, hardness, excellent tribological efficiency, oxidation resistance, and thermal stability [5,9,11,13]. Transition metal nitride coatings that were deposited by PVD, generally have a columnar microstructure and high defect density.…”

Section: Introductionmentioning

confidence: 99%

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Structure and corrosion behavior of ZrN/CrN nano-multilayer coating deposited on AISI 304 stainless steel by CAE-PVD technique

Samim

Fattah‐alhosseini

Elmkhah

et al. 2020

Journal of Asian Ceramic Societies

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In this study, a zirconium nitride/chromium nitride nano-multilayer coating was deposited on AISI 304 specimen using cathodic arc evaporation-physical vapor deposition (CAE-PVD). The characterization of the samples were evaluated by scanning electron microscopy (SEM), field emission-SEM (FE-SEM), and X-ray diffraction (XRD). To evaluate effect of immersion time on the electrochemical behavior of ZrN/CrN nano-multilayer coating using electrochemical impedance spectroscopy (EIS) measurements were carried out in 3.5 wt. % NaCl media. Using the CAE-PVD method, nano-multilayer ZrN/CrN coating with high adhesion and density was successfully produced. A unique high polarization resistance of ZrN/CrN nano-multilayer coatings in comparison to AISI 304 stainless steel without coating was made. As well as the desirable behavior corrosion results showed that in the ZrN/CrN nano-multilayer coating to the AISI 304 substrate within the 3.5 wt. % NaCl, there is a barrier against corrosive agents that is preventing corrosion occurrence. The SEM images disclosed that there were not any pits or severe damages on the surface of the ZrN/CrN nano-multilayer coating. The FE-SEM micrographs show that the coating structure contains alternate layers of ZrN and CrN. The energy dispersive spectroscopy (EDS) analysis and x-ray map were disclosed elements distribution in the cross-section of the nano-multilayer coating.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Structure and corrosion behavior of ZrN/CrN nano-multilayer coating deposited on AISI 304 stainless steel by CAE-PVD technique

Samim

Fattah‐alhosseini

Elmkhah

et al. 2020

Journal of Asian Ceramic Societies

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“…The most promising directions in the field of creating multifunctional coatings are multi-element [3,4], multilayer [5,6] and hybrid (formed from a base material with a partial thickness increment [7,8]) coatings. In recent years, the method of structural engineering of coatings has been effectively used to form coatings with desired properties [9,10].…”

Section: Introductionmentioning

confidence: 99%

A study of the phase-structural engineering possibilities of coatings on D16 alloy during micro-arc oxidation in electrolytes of different types

Subbotinа

Sоbоl

Belozerov

et al. 2020

EEJET

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The effect of electrolysis conditions with different electrolyte compositions on the growth kinetics, phase-structural state, and hardness of coatings obtained by microarc oxidation (MAO) on the D16 aluminum alloy (base-aluminum, main impurity Cu) was studied. An analysis of the results obtained showed that the choice of the type of electrolyte and the conditions for the MAO process makes it possible to vary the growth kinetics and phase-structural state of the coating on the D16 aluminum alloy within a wide range. For all types of electrolytes, with an increase in the content of KOH, Na 2 SiO 3 , or KOH+Na 2 SiO 3 , the growth rate of MAO coatings increases. It was found that in MAO coatings obtained in an alkaline (KOH) electrolyte, a two-phase (γ−Al 2 O 3 and α−Al 2 O 3 phases) crystalline state is formed. An increase in the KOH concentration leads to an increase in the relative content of the α-Al 2 O 3 phase (corundum). During the formation in a silicate electrolyte, the phase composition of MAO coatings with an increase in the content of liquid glass (Na 2 SiO 3) changes from a mixture of the γ−Al 2 O 3 phase and mullite (3Al 2 O 3 •2SiO 2) to an X-ray amorphous phase. The use of a complex electrolyte leads to a two-phase state of the coating with a large (compared to an alkaline electrolyte) shift of the γ−Al 2 O 3 →α−Al 2 O 3 transformation towards the formation of the α−Al 2 O 3 phase. It was determined that the value of hardness correlates with the content of the α−Al 2 O 3 phase in the MAO coating, reaching the maximum value of 1620 kg/mm 2 at the highest content (about 80 vol. %) of the α−Al 2 O 3 phase. Two types of dependences of the coating thickness on the amount of electricity passed were revealed. For the amount of passed electricity 10-50 A-h/dm 2 , the thickness dependence is determined as 4.2 µm/(A-h/dm 2), which suggests the basic mechanism of electrochemical oxidation during the formation of a coating. For the amount of electricity transmitted 50-120 A-hour/ dm 2 , the thickness dependence is determined by a much smaller value of 1.1 µm/(A-hour/dm 2). This suggests a transition to a different mechanism of coating formation − the formation of a coating with the participation of electrolysis components

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“…Thinner (about 3 µm) coating NMCC Zr-ZrN-(ZrCrAl)N, characterized by very high hardness (up to 42 GPa) and nanostructure with sublayer thickness of about 40 nm, was opposed to coatings with gradient properties Ti-(TiAl)N-(TiAl)N, characterized by hardness of about 33 GPa and thickness (10-12 µm) very high for PVD coatings. Sobol et al [33] have shown that the use of nanoscale sublayers during deposition of coatings on the basis of systems (TiZr)N results in formation of solid solutions: in sublayers ZrN, it is (Zr,Cr)N with reduced lattice period (period of 0.44221 nm), and in sublayers CrN (period of 0.4162 nm), it is solid solution (Cr,Zr)N (period of 0.42934 nm). Formation of such transition zones of solid solution results in decrease in hardness from 42 GPa under condition of mononitride sublayers without registered solid solution formations down to lower hardness 30 GPa in appearance of solid solution zones.…”

Section: Theoretical Prerequisitesmentioning

confidence: 99%

Comparative analysis of cutting properties and nature of wear of carbide cutting tools with multi-layered nano-structured and gradient coatings produced by using of various deposition methods

Grigoriev

Vereschaka

Fyodorov

et al. 2016

Int J Adv Manuf Technol

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Abstract. The aim of this work was to investigate mechanical and cutting properties, as well as the nature of wear and failure of carbide cutting tools with modifying coatings of two types: nanostructured multi-layered coating Zr-ZrN-(ZrCrAl)N, applied through the use of the technology of filtered cathodic vacuum arc deposition, and multi-layered nano-structured and gradient coating Ti-(TiAl)N-(TiAl)N, applied through the use of the technology of LARC ® (Lateral Rotating Cathodes). It is found out that the both types of coatings under test significantly improve tool life of a carbide cutting tool. The studies of mechanisms of wear and failure of carbide tools with coatings under test, conducted at macro and micro levels, have identified their major differences and revealed their most preferable field of application. The carbide tools, equipped with cutting inserts with the nano-structured multi-layered coating under study, provided a significant increase in cutting properties (tool life) of the tool in comparison with the uncoated carbide tool and in comparison with the reference carbide tool with TiN coating. The tool with the coating Ti-(TiAl)N-(TiAl)N under study demonstrated the increased wear resistance during 30-35 min of cutting, and then, the process of coating failure and tool wear was sharply intensified. For the tool with coating Zr-ZrN-(ZrCrAl)N, the tests revealed more evenly-balanced wear during the whole operating time between failures. It should be noted that NMCC Zr-ZrN-(ZrCrAl)N are substantially thinner, and that fact predetermines their better resistance to failure because of crack formation, and the technology of its generation is more cost-effective.

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Possibilities of structural engineering in multilayer vacuum-arc ZrN/CrN coatings by varying the nanolayer thickness and application of a bias potential

Cited by 22 publications

References 6 publications

Structure and corrosion behavior of ZrN/CrN nano-multilayer coating deposited on AISI 304 stainless steel by CAE-PVD technique

Structure and corrosion behavior of ZrN/CrN nano-multilayer coating deposited on AISI 304 stainless steel by CAE-PVD technique

A study of the phase-structural engineering possibilities of coatings on D16 alloy during micro-arc oxidation in electrolytes of different types

Comparative analysis of cutting properties and nature of wear of carbide cutting tools with multi-layered nano-structured and gradient coatings produced by using of various deposition methods

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