Comparative study of surface roughness and tribological behavior during running-in period of hard coatings deposited by lateral rotating cathode arc

Podgursky, Vitali; Nisumaa, R.; Adoberg, Eron; Surzhenkov, Andrei; Sivitski, Alina; Kulu, Priit

doi:10.1016/j.wear.2009.11.016

Cited by 26 publications

(8 citation statements)

References 14 publications

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“…Although the surface topography of coatings and surrounding atmosphere strongly affect the tribological performance of PVD TiN coatings, literature that systematically addresses these subjects is scarce [23][24][25][45][46][47][48]. Therefore, in this study, we performed more systematic tribological tests of BAI, CC7 and AIP titanium nitride coatings in three different atmospheres.…”

Section: The Tribological Behavior Of Tin Coatingsmentioning

confidence: 99%

Comparative Study of Tribological Behavior of TiN Hard Coatings Deposited by Various PVD Deposition Techniques

et al. 2022

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In this paper, we present a comparative study of tribological properties of TiN coatings deposited by low-voltage electron beam evaporation, magnetron sputtering and cathodic arc deposition. The correlation of tribological behavior of these coatings with their intrinsic properties and friction condition was studied. The influence of surface topography and the surrounding atmosphere was analyzed in more detail. We limited ourselves to the investigation of tribological processes that take place in the initial phase of the sliding test (the first 1000 cycles). A significant difference in the initial phase of the sliding test of three types of TiN coatings was observed. We found that nodular defects on the coating surface have an important role in this stage of the sliding test. The tribological response of TiN coatings, prepared by cathodic arc deposition, is also affected by the metal droplets on the coating surface, as well as those incorporated in the coating itself. Namely, the soft metal droplets increase the adhesion component of friction. The wear rates increased with the surface roughness of TiN coatings, the most for coatings prepared by cathodic arc deposition. The influences of post-polishing of the coating and the surrounding atmosphere were also investigated. The sliding tests on different types of TiN coatings were conducted in ambient air, oxygen and nitrogen. While oxygen promotes tribo-chemical reactions at the contact surface of the coating, nitrogen suppresses them. We found that the wear rate measured in ambient air, compared with that in an oxygen atmosphere, was lower. The difference is probably due to the influence of humidity in the ambient air. On the other hand, wear rates measured in a nitrogen atmosphere were much lower in comparison with those measured in an oxygen or ambient air atmosphere.

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Section: The Tribological Behavior Of Tin Coatingsmentioning

confidence: 99%

Comparative Study of Tribological Behavior of TiN Hard Coatings Deposited by Various PVD Deposition Techniques

et al. 2022

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“…In this stage, the adhesive wear might dominate the wear mechanism, leading to the high friction coefficient. Furthermore, the initial inconformity between the counterbodies can be considered as a contributing factor for an irregular friction coefficient [43]. The decrease of friction coefficient after the run-in period is caused by the rapid increase of the wear of ball, which results in the smoother interface between the tribo-pairs.…”

Section: Tribological Propertiesmentioning

confidence: 99%

Improving tribological and anti-corrosion properties of 316L stainless steel in multi-environment by carbon-rich CrC nanocomposite coating

Zhao

Ling

Jiang

et al. 2018

Surf. Topogr.: Metrol. Prop.

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Improving the surface properties of a material is an important method that extends the service life of machine parts under harsh condition in multi-environment. In this study, carbon-rich CrC coating was deposited on 316L stainless steel using multi-arc ion plating to improve its protective properties. Due to the formation of binary carbide nanocomposite structure, the hardness and elastic modulus of the coating are up to 30 and 400 GPa, respectively. The tribological behavior of CrC coating and 316L sliding against WC-Co ball under dry friction, the lubrication of distilled water and seawater were comparatively studied. Whatever the conditions, the CrC coating has a more advanced protective performance than 316L. The tribological performances of two samples are not only related to the microstructure and mechanical properties of itself, but also to the lubricating effect and corrosive effect of the medium. Friction coefficients and wear rates of these samples sliding in three different conditions decrease in the following order: dry friction, sliding in distilled water and seawater. As a result, the CrC coating can be treated as a good anti-corrosion material due to its dense and compact structure, chemical inertness to aggressive seawater and formation of oxide passivation layer.

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“…Finally, the performance of the lubricant is evaluated by the friction coefficient and the mean of six diameters obtained from the three steel balls. [1][2][3] However, it is hard to ensure that the measurement is carried out in the correct direction in practical measurements. An experienced tester can perform measurements more accurately.…”

Section: Introductionmentioning

confidence: 99%

A novel wear angle determination algorithm for wear image based on direction correlation of wear scar

Xiao

Zhang

Wang

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part J:

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A lubricant is a substance that lessens friction and wear between mechanical parts. A good quality lubricating oil is required for protecting the mechanical equipment and reducing energy consumption. Its performance index (friction coefficient) could be measured by the four-ball wear test. For the morphological analysis of testing data from the four-ball wear test, determination of wear angle is very important for measuring the wear spot diameter, validity of the four-ball wear test and recognition of abnormal wear scar. On the basis of character analysis and image processing technology, a novel wear angle determination algorithm for wear scar is presented in this article. The direction of the wear scar (wear angle) is determined based on angle transformation and grey consistency (the smallest change of grey level). Simulation results show that the algorithm has high precision, good robustness and less time consuming. The average absolute error of our method is 0.8° and the absolute error of 95% of samples is <4°. The average runtime per frame is 3.896 s in the simulation platform.

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Comparative study of surface roughness and tribological behavior during running-in period of hard coatings deposited by lateral rotating cathode arc

Cited by 26 publications

References 14 publications

Comparative Study of Tribological Behavior of TiN Hard Coatings Deposited by Various PVD Deposition Techniques

Comparative Study of Tribological Behavior of TiN Hard Coatings Deposited by Various PVD Deposition Techniques

Improving tribological and anti-corrosion properties of 316L stainless steel in multi-environment by carbon-rich CrC nanocomposite coating

A novel wear angle determination algorithm for wear image based on direction correlation of wear scar

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