Determination of physical characteristic in vanadium carbon nitride coatings on machining tools

Caicedo, J.C.; Aperador, W.; Amaya, C.

doi:10.1007/s00170-016-9835-2

Cited by 14 publications

(6 citation statements)

References 41 publications

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“…Figure 11 shows the adhesion strength for the monolayer and multilayer coatings as a function of the Lc1 and Lc2 faults, where slope changes corresponding to the adhesive and cohesive failure were observed, corroborating with the micrographs of the wear tracks for each test where the morphological changes suffered by the surface due to cohesive and adhesive failure are appreciated (Fig. 12) [18]. Figure 12 presents the images of optical microscopy of the scratching tracks during the test where the cohesive and adhesive failures were located for all the systems.…”

Section: Tribological Properties "Dynamic Scratching"supporting

confidence: 69%

Influence of the Number of Bilayers on the Mechanical and Tribological Properties in [TiN/TiCrN]n Multilayer Coatings Deposited by Magnetron Sputtering

Ortiz¹,

Colorado²,

Aperador³

et al. 2019

Tribol. Ind.

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In this work the influence of the number of bilayers was studied on the mechanical, tribological and electrochemical properties of multilayer coatings [TiN / TiCrN]n as a function of the number of bilayers n = 1, 25 and 50, deposited by magnetron sputtering. By Xray diffraction (XRD), a cubic crystal structure centered on the faces (FCC) was determined for all coatings and an increase in the compressive stresses that were generated during the deposition process was found by perfilometry; Atomic force microscopy (AFM) determined that by increasing the number of bilayers, the roughness decreased, due to an increase in the density of the system. By nanoindentation it was found that the hardness (H) and the modulus of elasticity (E) increased as the number of bilayers did. By Pin on disk a decrease in the coefficient of friction was observed as the number of bilayers was increased, which was related to the increase in hardness and the reduction of roughness. The results of EIS and Tafel for the electrochemical properties, determined that the corrosion rate decreased due to the fact that a greater barrier to the passage of the electrolyte towards the substrate is promoted when the number of bilayers increases.

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Section: Tribological Properties "Dynamic Scratching"supporting

confidence: 69%

Influence of the Number of Bilayers on the Mechanical and Tribological Properties in [TiN/TiCrN]n Multilayer Coatings Deposited by Magnetron Sputtering

Ortiz¹,

Colorado²,

Aperador³

et al. 2019

Tribol. Ind.

Self Cite

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“…In addition, Figure 14a and b show the adhesion strength for the single layer coatings as a function of Lc1 and Lc2 failures, where the change in slope corresponding to the adhesive and cohesive failure are observed. Thus, there results were corroborated with the micrographs of the wear tracks of each test where the morphological changes suffered by the surface due to the cohesive and adhesive failure can be appreciated [32].…”

Section: Tribological Properties For Tin and Ticrn Nitride Coatingssupporting

confidence: 63%

Analysis of the Tribological Evolution of Nitride-Based Coatings

Ortiz¹,

Hernández‐Rengifo²,

Caicedo³

2022

Tribology of Machine Elements - Fundamentals and Applications

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This chapter describes the fundamental and technological role of nitride-based hard coatings as protective coatings in some applications within the metalworking industry. For this, this chapter will present a critical review of previous research and recent developments on nitride-based coatings in different systems such as (multilayers, quaternaries, among others), where it will be possible to demonstrate their main properties and advantages that they can grant when they are implemented on conventional steels, such as greater hardness, surface control, electrochemical resistance, resistance against wear, among others. These results will determine that this type of coatings are suitable candidates to be implemented as protective coatings on cutting tools, which suffer from high wear in machining processes in the metalworking industry.

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“…The nitrogen with metals has very promising physical characteristics due to its high chemical and physical stability. The good properties of metallic nitrides allow to be used in many applications under several service conditions [2].…”

Section: Introductionmentioning

confidence: 99%

Influence of film thickness and Ar N2 plasma gas on the structure and performance of sputtered vanadium nitride coatings

Aissani

Alhussein

Nouveau

et al. 2019

Surface and Coatings Technology

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We investigated the effect of film thickness on the structure and properties of VeN coatings deposited by magnetron sputtering in an argon and nitrogen atmosphere. The nitrogen percentage was changed between 10 and 20%. Firstly, structural and morphological properties of VeN films were observed, analyzed and subsequently followed by a detailed investigation on the mechanical and tribological properties of these coatings. It has been shown that film structure, hardness and wear resistance significantly changed with varying the film thickness and the nitrogen percentage. In the case of films deposited under 10%N 2 , the presence of V 2 N phase was evident. With increasing nitrogen ratio in the deposition chamber from 10 to 20%, the structure was changed from (hc)V 2 N to multi phases of V 2 N and (fcc) VN (formation of different vanadium nitrides). The thick films containing more nitrogen were slightly dense compared to the thinner ones presenting rough surface and columnar morphology. Nanoindentation measurements showed that film mechanical behavior depends on its thickness, nitrogen percentage and microstructural features. The film hardness first increased with its thickness and then decreased. The highest hardness of 26.2 GPa was obtained for the film deposited under 20%N 2 , which is correlated with its dense structure and film stoichiometry. The film thickness has a significant effect on the tribological properties of VeN films. The minimum friction coefficient of 0.4 was found for the thickest film of 2500 nm. The wear rate gradually decreased with increasing the film thickness, due to the high hardness, presence of VN phase and the strong adhesion between film and substrate.

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Determination of physical characteristic in vanadium carbon nitride coatings on machining tools

Cited by 14 publications

References 41 publications

Influence of the Number of Bilayers on the Mechanical and Tribological Properties in [TiN/TiCrN]n Multilayer Coatings Deposited by Magnetron Sputtering

Influence of the Number of Bilayers on the Mechanical and Tribological Properties in [TiN/TiCrN]n Multilayer Coatings Deposited by Magnetron Sputtering

Analysis of the Tribological Evolution of Nitride-Based Coatings

Influence of film thickness and Ar N2 plasma gas on the structure and performance of sputtered vanadium nitride coatings

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