The tribological performance of super-hard Ta:C DLC coatings obtained by low-temperature PVD

Goti, Edoardo; Mura, Andrea; Gautier di Confiengo, Giovanna Maria; Casalegno, Valentina

doi:10.1016/j.ceramint.2023.09.355

Cited by 2 publications

(1 citation statement)

References 26 publications

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“…In this case, the authors observed an increase in the corrosion resistance of the sealed system due to the barrier effect of the PVD coating against corrosive media. The PVD coatings used were DLC (Diamond-Like Carbon) coatings, which are composed of a disordered structure of sp 2 and sp 3 bonds and are used to increase the tribological performances of the surface [20], and CrN deposited by reactive sputtering.…”

Section: Introductionmentioning

confidence: 99%

The Use of Thin Films as Defect Sealants to Increase the Corrosion Resistance of Thermal Spray Coatings

Lanzutti,

Sordetti,

Marin

et al. 2023

Metals

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Thermal spray-coated components are widely used as wear-resistant coatings in many applications. However, these coatings have high levels of discontinuities that affect the corrosion resistance of the coated system. To reduce this problem, these coatings are usually sealed with liquid sealants (metals, organic or inorganic). The aim of this work is to seal the surface discontinuities of thermal-sprayed coatings using PVD and/or ALD coatings. To this end, CrN (arc deposition PVD) and TiO2 (ALD) coatings were deposited on thermal-sprayed alumina coatings. The samples produced were then analysed in both cross-sectional and planar views to detect the possible permeation of the thin film coatings into the thermal spray defects. Rf-GDOES measurements were performed to detect the very thin ALD deposit on the surface. The corrosion resistance of the sealed coatings was verified with immersion tests, wherein the OCP was monitored for 24 h, and potentiodynamic tests were performed after 15 min and 24 h immersions. The results showed that the thin films were not able to block the permeation of corrosive media, but they could reduce the permeation of corrosive media with a beneficial behaviour on corrosion resistance.

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Section: Introductionmentioning

confidence: 99%

The Use of Thin Films as Defect Sealants to Increase the Corrosion Resistance of Thermal Spray Coatings

Lanzutti,

Sordetti,

Marin

et al. 2023

Metals

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Analiza Wpływu Wybranych Dodatków Smarów Lotniczych Na Ich Właściwości Użytkowe

Bogucki

2024

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W artykule przedstawiono typowe środki smarne stosowane w lotnictwie oraz przykłady problemów eksploatacyjnych wynikających m.in. z wprowadzenia zamienników środków smarnych dla starej technologii lotniczej czy nowych dodatków poprawiających smarność powszechnie stosowanego paliwa lotniczego. Wybrany dodatek do paliwa lotniczego(DCI-4A) i zbadano jego wpływ na wybrany silnik. Przeprowadzono również analizę widma FTIR na obecność wody na przykładzie oleju TN-699. W podsumowaniu przedstawiono wnioski i rekomendacje - wdrażanie nowych środków smarnych i dodatków wymaga w każdym przypadku serii badań laboratoryjnych i stanowiskowych oraz monitorowania procesów tribologicznych w eksploatacji maszyn i urządzeń.

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The tribological performance of super-hard Ta:C DLC coatings obtained by low-temperature PVD

Cited by 2 publications

References 26 publications

The Use of Thin Films as Defect Sealants to Increase the Corrosion Resistance of Thermal Spray Coatings

The Use of Thin Films as Defect Sealants to Increase the Corrosion Resistance of Thermal Spray Coatings

Analiza Wpływu Wybranych Dodatków Smarów Lotniczych Na Ich Właściwości Użytkowe

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