CrVN/TiN nanoscale multilayer coatings deposited by DC unbalanced magnetron sputtering

Contreras, Elbert; Galindez, Y.; Rodas, M.; Bejarano, Gilberto; Botero, Maryory Astrid Gómez

doi:10.1016/j.surfcoat.2017.07.086

Cited by 38 publications

(15 citation statements)

References 20 publications

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“…Currently, many researchers have used following: (i) multilayer coating [33,91] (ii) doping using other elements-co-doping [32,[91][92][93][94] (iii) nanostructured coating in (multicomponent coating, gradient coating, nanocomposite coating, super-lattice coating, duplex coating, adaptive coating) [42,[95][96][97].…”

Section: Ways Of Controlling Porosity In Plasma-sprayed Coatingmentioning

confidence: 99%

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Porosity and Its Significance in Plasma-Sprayed Coatings

et al. 2019

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Porosity in plasma-sprayed coatings is vital for most engineering applications. Porosity has its merits and demerits depending on the functionality of the coating and the immediate working environment. Consequently, the formation mechanisms and development of porosity have been extensively explored to find out modes of controlling porosity in plasma-sprayed coatings. In this work, a comprehensive review of porosity on plasma-sprayed coatings is established. The formation and development of porosity on plasma-sprayed coatings are governed by set spraying parameters. Optimized set spraying parameters have been used to achieve the most favorable coatings with minimum defects. Even with the optimized set spraying parameters, defects like porosity still occur. Here, we discuss other ways that can be used to control porosity in plasma-sprayed coating with emphasis to atmospheric plasma-sprayed chromium oxide coatings. Techniques like multilayer coatings, nanostructured coatings, doping with rare earth elements, laser surface re-melting and a combination of the above methods have been suggested in adjusting porosity. The influences of porosity on microstructure, properties of plasma-sprayed coatings and the measurement methods of porosity have also been reviewed.

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Section: Ways Of Controlling Porosity In Plasma-sprayed Coatingmentioning

confidence: 99%

“…Typically the layers are alternated after the bond coat, as represented in Figure 5. It has been used to reduce residual stresses to a large extent and inhibit the proliferation of cracks across a coating [91]. Multilayer coatings have a reduced grain size.…”

Section: Multilayer Coatingmentioning

confidence: 99%

Porosity and Its Significance in Plasma-Sprayed Coatings

et al. 2019

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“…It has been used to reduce residual stresses to a large extent and inhibit the proliferation of cracks across a coating [74,75]. Multilayer coating have a reduced grain size.…”

Section: Multilayer Coatingmentioning

confidence: 99%

Porosity and Its Significance in Plasma Sprayed Coating: A Review

Odhiambo¹,

Li²,

Zhao³

et al. 2019

Preprint

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Porosity in plasma sprayed coatings is vital for most engineering applications. It is either advantageous or disadvantageous depending on the functionality of the coating and the immediate working environment. Consequently, the formation mechanisms and development of porosity has been extensively explored to find out modes of controlling porosity in plasma sprayed coatings. In this work, a comprehensive review of porosity on plasma sprayed coatings is established. The formation and development of porosity on plasma sprayed coatings are governed by set spraying parameters. Optimized set spraying parameters have been used to achieve the most favorable coatings with minimum defects. Even with the optimized set spraying parameters, defects like porosity still occur. Here, we discuss other ways that can be used to control porosity in plasma sprayed coating with emphasis to atmospheric plasma sprayed chromium oxide coatings. Techniques like multi-layer coatings, nano-structured coatings, doping with rare earth elements, laser surface re-melting and a combination of the above methods have been suggested in adjusting porosity. The influences of porosity on properties of plasma sprayed coatings and the measurement methods of porosity have also been reviewed.

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“…Later, it was found out that a hybrid treatment merging nitriding of the substrate with the following deposition of PVD CrN monolithic coatings with a Cr buffer layer is the most efficient way to extend the lifetime of hot forging tools [5]. Recently, it was shown that the development of even better die protection could be achieved by deposition of nano-multilayer surface coatings with a combination of double or ternary nitrides like CrVN/TiN [6] or Cr/CrN/(CrN/CrAlN)/(CrAlN/VN) [7]. This idea was based on the assumption that such nano-multilayers offer not only higher hardness than the monolithic coatings, but also secure some self-lubricating capabilities due to the presence of vanadium nitride.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Wear of (CrN/CrAlN)/(CrAlN/VN) and (CrN/TiAlN)/(TiAlN/VN) Coatings for Molds Used in High Pressure Casting of Aluminum

Wilczek¹,

Morgiel

Rogal

et al. 2020

Coatings

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Molds made of tool steels used in aluminum high-pressure die casting should routinely withstand tens of thousands of injection cycles, but repeated loading and temperature spikes result in their frequent premature wear. Extending their lifetime could be sought by nitriding or application of coatings of even higher hardness or both. Therefore, in the present experiment the arc-deposited Cr/(CrN)/nx(CrN/CrAlN)/mx(CrAlN/VN) or Cr/(CrN)/nx(CrN/TiAlN)/mx(TiAlN/VN) nano-multilayer stacks were deposited on glow discharge nitrided X40CrMoV5.1 steel. The scanning and transmission electron microscopy backed by Energy Dispersive X-ray Spectroscopy measurements of local chemical composition helped to confirm that the coatings are built of nanolayers of respective nitrides of period less than 10 nm. They also showed that droplets being characteristic for arc deposition method were enriched either in chromium, aluminum or vanadium but not in titanium. Both coatings presented comparable hardness of ~25 GPa, but the one covered with TiAlN/VN was roughly twice as wear resistant as the CrAlN/VN. Simultaneously, they were ~200 and ~100 more wear resistant than X40CrMoV5.1reference steel.

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CrVN/TiN nanoscale multilayer coatings deposited by DC unbalanced magnetron sputtering

Cited by 38 publications

References 20 publications

Porosity and Its Significance in Plasma-Sprayed Coatings

Porosity and Its Significance in Plasma-Sprayed Coatings

Porosity and Its Significance in Plasma Sprayed Coating: A Review

Microstructure and Wear of (CrN/CrAlN)/(CrAlN/VN) and (CrN/TiAlN)/(TiAlN/VN) Coatings for Molds Used in High Pressure Casting of Aluminum

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