Investigation into microstructure and mechanical properties effects on sliding wear and cavitation erosion of Al2O3–TiO2 coatings sprayed by APS, SPS and S-HVOF

Nowakowska, Monika; Łatka, Leszek; Sokołowski, Paweł; Szala, Mirosław; Toma, Filofteia-Laura; Walczak, Mariusz

doi:10.1016/j.wear.2022.204462

Cited by 22 publications

(5 citation statements)

References 58 publications

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“…The spray parameters determine hardness and porosity levels and affect the sprayed ceramics wear and cavitation erosion behaviour. Tougher and denser coatings show better anti-cavitation performance, which was proved by the comparative study carried out for the APS, SPS, and S-HVOF coatings [29]. In the case of wear resistance, hardness is a predominant factor that results in the anti-wear behaviour of the coatings.…”

Section: Tribological and Cavitation Erosion Performancementioning

confidence: 80%

Cavitation Erosion and Wet Environment Tribological Behaviour of Al₂O₃-13% TiO₂ Coatings Deposited via Different Atmospheric Plasma Spraying Parameters

et al. 2022

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Atmospheric plasma spraying is an up-to-date and systematically developed technology. One of the crucial ideas is injecting the sprayed feedstock powder internally or externally into the plasma arc. The spraying parameters affect the microstructure and properties of the coating, which is decisive for the operation performance of coatings and specific machine components. This paper investigates the effect of atmospheric plasma spraying parameters, namely the feedstock injection mode and the spray distance, on cavitation erosion and wet environment tribological behaviour of Al2O3-13% TiO2 coatings. The internal and external injection spraying mode, constant spray velocity (500 mm/s), and two spray distances to the substrate, namely 80 mm and 100 mm, were employed. The microstructure, porosity and hardness of the deposited coatings were studied. Cavitation erosion resistance was estimated using the ASTM G32 method. The sliding wear resistance has been estimated in the distilled water environment using the ball-on-disc apparatus. The results indicate that the internal injection supports the cavitation erosion resistance and the aquatic sliding wear. The coating fabricated with the 80 mm spray distance using the internal method is characterized by the smallest wear and the highest anti-erosion performance. A shorter spraying distance indicates greater coatings uniformity, while the increasing distance reduces the hardness and porosity, which are beneficial for the performance of the coatings. The main wet sliding wear mechanism has been fatigue-induced material detachment, while the cavitation erosion mechanism depends on the brittle fracture resulting in material detachment and pitting.

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Section: Tribological and Cavitation Erosion Performancementioning

confidence: 80%

Cavitation Erosion and Wet Environment Tribological Behaviour of Al₂O₃-13% TiO₂ Coatings Deposited via Different Atmospheric Plasma Spraying Parameters

et al. 2022

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“…The literature systematically describes the wear behavior and phenomena responsible for the degradation resistance of materials. Overall, wear, corrosion and erosion are the dominant types of engineering material degradation among the broad range of deterioration processes [1][2][3]. Even though the relevant literature [4,5] explains the general factors influencing the resistance of materials, the continuous development of metal-based structure fabrication, processing, treatment technology and surface engineering demands systematic reporting on the advances in the wear properties of metallic and ceramic materials.…”

Section: Introduction and Scopementioning

confidence: 99%

Metallic and Ceramic Materials Integrity—Surface Engineering for Wear, Corrosion and Erosion Prevention

Szala,

Walczak

2024

Materials

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“…Among many thermal spray methods, the high velocity oxy-fuel (HVOF) is characterized by homogenous structure with low porosity level, as well as low crack density [10][11][12]. It is caused by relatively low flame temperature and high particles velocity [13][14][15] in comparison to atmospheric plasma (APS) and suspension plasma spraying (SPS) [16,17].…”

Section: Introductionmentioning

confidence: 99%

The Effect of HVOF Spray Distance on Solid Particle Erosion Resistance of WC-based Cermets Bonded by Co, Co-Cr and Ni Deposited on Mg-alloy Substrate

Jonda,

Łatka,

Lont

et al. 2024

Adv. Sci. Technol. Res. J.

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Magnesium alloys are very interesting engineering materials because of their high strength-to-density ratio. On the other hand, they are characterized by low hardness as well as low erosion resistance. Because of these reasons, their applications in the industry are very limited. The article presents the results of the high velocity oxy-fuel (HVOF) spraying of the hard cermet coatings onto AZ31 magnesium alloy substrate. Three feedstock powders were used in the process with composition (wt.%): WC-12Co, WC-10Co-4Cr and WC-20Cr 3 C 2 Ni. The spray distance (SD) was selected as a variable parameter with values equal to 320 and 400 mm. Observations carried out under a scanning electron microscope (SEM) revealed a typical HVOF-sprayed microstructure with a compact structure and low porosity (below 3 vol.%). The hardness of the manufactured coatings, ranging from 912 HV0.2 to 1328 HV0.2, what was significantly higher than the substrate. The solid particle erosion tests were carried out according to the ASTM G76-04 standard. Erosive experiments were done for 30°, 60° and 90° inclination angles of the nozzle using Al 2 O 3 abrasive. Erosion tests confirm that cermets exhibit substantial erosion resistance better than the substrate. The highest erosion resistance was noted for WC-10Co-4Cr coatings. The erosion rate for cermet coatings was mostly below 0.9 mg/min, whereas for the AZ31 it was more than 1.5 mg/min. In the case of the average erosion value, it was between 12 and 22 times lower than for the substrate. Results analysis reveal that shorter spray distance decreases porosity, increases hardness, and finally supports erosion resistance of the cermets.

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Investigation into microstructure and mechanical properties effects on sliding wear and cavitation erosion of Al2O3–TiO2 coatings sprayed by APS, SPS and S-HVOF

Cited by 22 publications

References 58 publications

Cavitation Erosion and Wet Environment Tribological Behaviour of Al₂O₃-13% TiO₂ Coatings Deposited via Different Atmospheric Plasma Spraying Parameters

Cavitation Erosion and Wet Environment Tribological Behaviour of Al₂O₃-13% TiO₂ Coatings Deposited via Different Atmospheric Plasma Spraying Parameters

Metallic and Ceramic Materials Integrity—Surface Engineering for Wear, Corrosion and Erosion Prevention

The Effect of HVOF Spray Distance on Solid Particle Erosion Resistance of WC-based Cermets Bonded by Co, Co-Cr and Ni Deposited on Mg-alloy Substrate

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Investigation into microstructure and mechanical properties effects on sliding wear and cavitation erosion of Al2O3–TiO2 coatings sprayed by APS, SPS and S-HVOF

Cited by 22 publications

References 58 publications

Cavitation Erosion and Wet Environment Tribological Behaviour of Al2O3-13% TiO2 Coatings Deposited via Different Atmospheric Plasma Spraying Parameters

Cavitation Erosion and Wet Environment Tribological Behaviour of Al2O3-13% TiO2 Coatings Deposited via Different Atmospheric Plasma Spraying Parameters

Metallic and Ceramic Materials Integrity—Surface Engineering for Wear, Corrosion and Erosion Prevention

The Effect of HVOF Spray Distance on Solid Particle Erosion Resistance of WC-based Cermets Bonded by Co, Co-Cr and Ni Deposited on Mg-alloy Substrate

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Cavitation Erosion and Wet Environment Tribological Behaviour of Al₂O₃-13% TiO₂ Coatings Deposited via Different Atmospheric Plasma Spraying Parameters

Cavitation Erosion and Wet Environment Tribological Behaviour of Al₂O₃-13% TiO₂ Coatings Deposited via Different Atmospheric Plasma Spraying Parameters