Tribological properties of selected ceramic coatings

Viňáš, Ján; Brezinová, Janette; Guzanová, Anna

doi:10.1080/01694243.2012.701538

Cited by 14 publications

(11 citation statements)

References 19 publications

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“…Thermally sprayed coatings are often used to increase the resistance of the parent material against corrosion and wear [3][4][5][6][7][8][9][10][11][12][13][14][15]. The desired properties of coatings applied by the high-velocity oxygen fuel (HVOF) method also include high density and good adhesion, which are characterized by the ability to form coatings with a small portion of oxides and phase transformations [16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

“…For WC-FeCrAl and WC-WB-Co coatings, comparative studies are missing; however for conventional WC-Co coatings, there is a large amount of relevant literature [1][2][3][4][5]7,12,15,[20][21][22][23][24]. Therefore, a team of authors, Bolelli et al [25][26][27][28], decided to elaborate with a detailed comparative study focused on the microstructure, micromechanical properties, residual stresses, and wear of the WC-FeCrAl coating in comparison with the conventional WC-CoCr coating.…”

Section: Introductionmentioning

confidence: 99%

“…When researchers characterize the wear resistance of coatings, they mostly utilize the pin-on-disc test or dry-sand/rubber-wheel test; there is a lack of information on WC-WB-Co and WC-FeCrAl behavior under dry-pot wear tests at different sample angles. To determine the quality of the coatings, tests aimed at determining the corrosion resistance and adhesive, abrasive, and erosive wear of as-sprayed coatings after thermal cycles were selected [3][4][5][31][32][33][34]. The corrosion properties of the coatings were determined using potentiodynamic polarization tests in simulated acid rain (SAR) and NaCl solution.…”

Section: Introductionmentioning

confidence: 99%

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Microstructure, Wear Behavior and Corrosion Resistance of WC-FeCrAl and WC-WB-Co Coatings

Brezinová

Landová

Guzanová

et al. 2018

Metals

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The paper is focused on investigating the quality of two grades of thermally sprayed coatings deposited by high-velocity oxygen fuel (HVOF) technology. One grade contains WC hard particles in an environmentally progressive Ni-and Co-free FeCrAl matrix, while the second coating contains WC and WB hard particles in a cobalt matrix. The aim of the experimental work was to determine the effect of thermal cyclic loading on the coatings' resistance to adhesive, abrasive and erosive wear. Abrasive wear was evaluated using abrasive cloth of two grit sizes, and erosive wear was evaluated by a dry-pot wear test in a pin mill at two sample angles. Adhesion wear resistance of the coatings was determined by a sliding wear test under dry friction conditions and in a 1 mol water solution of NaCl. Corrosion resistance of the coatings was evaluated using potentiodynamic polarization tests. Metallographic cross-sections were used for measurement of the microhardness and thickness and for line energy-dispersive X-ray (EDX) analysis. The tests proved the excellent resistance of both coatings against adhesive, abrasive, and erosive wear, as well as the ability of the WC-WB-Co coating to withstand alternating temperatures of up to 600 • C. The "green carbide" coating (WC-FeCrAl) can be recommended as an environmentally friendly replacement for Ni-and Co-containing coatings, but its operating temperature is strictly limited to 500 • C in air.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Microstructure, Wear Behavior and Corrosion Resistance of WC-FeCrAl and WC-WB-Co Coatings

Brezinová

Landová

Guzanová

et al. 2018

Metals

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“…Moreover, high temperature is increasing the NO emissions and too high in-cylinder pressure is able to damage the engine. [19][20][21] Furthermore, if the pre-ignition is rising, there is also at disposal a longer time for heat transfer and vice versa, if the ignition moment is closer to the TDC, the in-cylinder pressure and the cylinder temperature are reduced, and the active work of the gas is lower. In this case, reduction of the in-cylinder pressure and the cylinder temperature is able to cause an incomplete combustion.…”

Section: Minimization Of the Fuel Consumptionmentioning

confidence: 99%

Autonomous vehicle with internal combustion drive based on the homogeneous charge compression ignition technology

Puškár

Fábián

Kádárová

et al. 2017

International Journal of Advanced Robotic Systems

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The actual dynamical development of the information technologies is also typical for the area of automotive industry. The autonomous control technology is moving the motorcars into the mobile robot category. The autonomous mobile robotic vehicles, together with new possibilities offered thanks to the mobility services, are improving not only comfort but also safety of transport. Nowadays, application of the homogeneous charge compression ignition technology represents a great progress made in the field of internal combustion drive, taking into consideration more and more rigorous emission standards. This article deals with principles and architecture of the autonomous control, with hybrid drive systems as well as it analyses advantages of the homogeneous charge compression ignition technology, taking into consideration the obtained experimental results.

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“…It is basically an integration of two major areas of significance and application in mechanical systems namely Tribology and Corrosion [6,7]. Tribology is the science of friction, wear, and lubrication, whereas corrosion relates to chemical aspects of the material degradation in mechanical systems [8,14,15,16,19]. Tribocorrosion can be defined as a degradation phenomenon of material surfaces (wear, cracking, corrosion, etc.)…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigations of Aluminium Alloys 2024 –T 3 Form in Terms of Tribocorrosion Characteristics

Bronček

Dzimko

Hadzima

et al. 2014

Acta Metall Slovaca

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Results of" ball on disc" principle tests to examine the friction coefficient and wear rate of Aluminium Alloys 2024-T3 are presented. Tribocorrosion experiments were performed using a pin on disc tribometer under controlled electrochemical conditions in NaCl solution. This paper reviews the available knowledge relating to the tribocorrosion. Tribocorrosion can be defined as a degradation phenomenon of material surfaces (wear, cracking, corrosion, etc.) subjected to the combined action of mechanical loading (friction, abrasion, erosion, etc.) and corrosion attack caused by the environment (chemical and/or electrochemical interaction), as highlighted in Figure. Experimental confirmations of improving electrochemical properties of the aluminium alloy AW 2024 by anode oxidation and extension of the period of excitement AW 2024 after adjusting surface anode oxidation are documented.Keywords: tribology, corrosion, tribocorrosion, research, coatings, layers IntroductionThe need to select or design new surfaces for future equipment as well as minimize the operating costs and extend the life of existing machinery has led to demands for a much better understanding of surface degradation processes particularly when tribological components are operating in corrosive environments. This has given rise to the active research area of tribocorrosion which seeks to address the concerns above and understand the surface degradation mechanisms when mechanical wear and chemical or electrochemical processes interact with each other. Corrosion is the physicochemical interaction between metal and environment. Corrosion resulted in permanent chemical changes of metal and therefore metal changes his chemical, physical and mechanical properties [1,2]. Corrosion of the most technical metals is spontaneously because of metals tendency to achieve the thermodynamically stable state. Most of the technical metals (except copper, silver, gold and platinum) are no-noble and therefore it is presumption of interaction with environment in common conditions. It is very important to know the corrosion rate of the metal in specific media. The corrosion rate is the rate of the changing the metal to its corrosion product and it is determining by the rate of chemical reactions or by the rate of the transport of active components near metal surface. If the corrosion products are

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Tribological properties of selected ceramic coatings

Cited by 14 publications

References 19 publications

Microstructure, Wear Behavior and Corrosion Resistance of WC-FeCrAl and WC-WB-Co Coatings

Microstructure, Wear Behavior and Corrosion Resistance of WC-FeCrAl and WC-WB-Co Coatings

Autonomous vehicle with internal combustion drive based on the homogeneous charge compression ignition technology

Experimental Investigations of Aluminium Alloys 2024 –T 3 Form in Terms of Tribocorrosion Characteristics

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