An approach to evaluate the resistance of hard coatings to shock loading

Krella, Alicja

doi:10.1016/j.surfcoat.2010.10.033

Cited by 9 publications

(3 citation statements)

References 27 publications

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“…In addition, sliding wear of both coatings was 24 times lower than uncoated steel, and deposition of coating caused a decrease of the friction coefficient two times. Similar results of the role of adhesion of PVD coatings on CER were obtained in Refs [55], [56] and [69].…”

Section: Coatingssupporting

confidence: 87%

“…The cited examples and other works [71][72][73] indicate that an important aspect in the case of coatings is not only the mechanical properties of the substrate or the coating itself, but also the properties of the whole coating-substrate system, including structural properties [69]. Particular attention should also be paid to the coating application parameters and the application method.…”

Section: Coatingsmentioning

confidence: 99%

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Cavitation Erosion Resistance Influence of Material Properties

Zakrzewska

Krella

2019

Advances in Materials Science

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The cavitation erosion is the phenomena that causes degradation of fluid flow machinery components due to repetitive implosion of cavitation bubbles adjacent to the solid surface. Cavitation erosion is a complex phenomenon, which includes not only hydrodynamic factors of liquid, but also properties of erodible material e.g. microstructure, hardness or Young modulus. In order to reduce the negative impact of erosion on machine components, there are many methods to increase cavitation erosion resistance. The paper discusses the correlations between structural and mechanical properties and the resistance to cavitation erosion (CER) of pure materials, their alloys and coatings. Methods to increase CER have also been described - using heat / thermo-chemical treatment and application of coatings by various methods.

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Section: Coatingssupporting

confidence: 87%

Section: Coatingsmentioning

confidence: 99%

Cavitation Erosion Resistance Influence of Material Properties

Zakrzewska

Krella

2019

Advances in Materials Science

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“…Wang et al [82] performed a low-angle slurry erosive test of CrN/NbN superlattice coatings and observed the selective wear at defects. Similar wear mechanisms, like in the case of erosion with hard particles ejected from the nozzle at high pressure of air or liquid, were observed for components exposed to cavitation in different liquid media [84]. Cavitation implies the build-up and subsequent implosion of bubbles.…”

Section: Erosion Resistancesupporting

confidence: 55%

Review of Growth Defects in Thin Films Prepared by PVD Techniques

et al. 2020

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The paper summarizes current knowledge of growth defects in physical vapor deposition (PVD) coatings. A detailed historical overview is followed by a description of the types and evolution of growth defects. Growth defects are microscopic imperfections in the coating microstructure. They are most commonly formed by overgrowing of the topographical imperfections (pits, asperities) on the substrate surface or the foreign particles of different origins (dust, debris, flakes). Such foreign particles are not only those that remain on the substrate surface after wet cleaning procedure, but also the ones that are generated during ion etching and deposition processes. Although the origin of seed particles from external pretreatment of substrate is similar to all PVD coatings, the influence of ion etching and deposition techniques is rather different. Therefore, special emphasis is given on the description of the processes that take place during ion etching of substrates and the deposition of coating. The effect of growth defects on the functional properties of PVD coatings is described in the last section. How defects affect the quality of optical coatings, thin layers for semiconductor devices, as well as wear, corrosion, and oxidation resistant coatings is explained. The effect of growth defects on the permeation and wettability of the coatings is also shortly described.

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Influence of B4C Content on Flexural Performance of Ni + B4C Microwave Composite Clads

Minhaj

Zafar

2021

J. of Materi Eng and Perform

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An approach to evaluate the resistance of hard coatings to shock loading

Cited by 9 publications

References 27 publications

Cavitation Erosion Resistance Influence of Material Properties

Cavitation Erosion Resistance Influence of Material Properties

Review of Growth Defects in Thin Films Prepared by PVD Techniques

Influence of B4C Content on Flexural Performance of Ni + B4C Microwave Composite Clads

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