Plasma and gaseous nitrocarburizing of C60W steel for tribological applications

Mirjani, M.; Shafyei, A.; Ashrafizadeh, F.

doi:10.1016/j.vacuum.2008.12.004

Cited by 17 publications

(5 citation statements)

References 12 publications

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“…No methodological studies were performed in order to quantify the volume fraction of porosity; however, it was measured on the cross-sectional SEM images that GN and FBN resulted in deeper porous layers as compared to NC and PN, having values of 4.72 ± 0.27, 3.92 ± 0.26, 1.70 ± 0.05, and 1.63 ± 0.25 μm, respectively. XRD analysis of the untreated and treated surfaces were given in the previous study [22] where the untreated surface presented only α-Fe phase and treated samples presented ε-Fe 2-3 N and γ′-Fe 4 N that is in accordance with the literature where these compounds have been reported as the main constituents of the compound layer after nitriding processes [26,[29][30][31][32][33]. Besides, NC and FBN samples presented 3 and 4% of Fe 2 O 3 phase, respectively, that may be due to the residual air in the furnace during the process [22,26,34].…”

Section: As-treated Surfacessupporting

confidence: 82%

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A comparative investigation of the corrosion and tribocorrosion behaviour of nitrocarburized, gas nitrided, fluidized-bed nitrided, and plasma nitrided plastic mould steel

Boztepe

Alves

Ariza

et al. 2018

Surface and Coatings Technology

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The present study aims to compare the corrosion and tribocorrosion behaviour of nitrocarburized, gas-nitrided, fluidized-bed nitrided, and plasma-nitrided Impax Supreme (equivalent to AISI P20) pre-hardened plastic mould steel. Corrosion behaviour was investigated by electrochemical impedance spectroscopy and potentiodynamic polarization in 3.5 wt% NaCl solution. Tribocorrosion tests were performed in the same solution under open circuit potential during sliding against 10 mm alumina balls. Results showed that plasma-nitrided samples presented better corrosion behaviour in terms of tendency to corrosion, corrosion rate, and polarization resistance, as compared to the other studied surface treatments. Together with nitrocarburised samples, plasmanitrided samples also exhibited lower tendency to corrosion under sliding.

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Section: As-treated Surfacessupporting

confidence: 82%

“…1 . On the other hand, it was observed from the hardness profiles that was given elsewhere [22] that PN presented the largest case depth which is known as more effective and uniform as compared to the other nitriding methods [2,26].…”

Section: As-treated Surfacesmentioning

confidence: 92%

A comparative investigation of the corrosion and tribocorrosion behaviour of nitrocarburized, gas nitrided, fluidized-bed nitrided, and plasma nitrided plastic mould steel

Boztepe

Alves

Ariza

et al. 2018

Surface and Coatings Technology

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“…The ANN is a non-linear data modelling, mapping 17 tool that has been found a wide practice in engineering sciences. ANN technique is versatile and used by many researchers for prediction of optical properties, 18 tribological properties, 19 manufacturing process control 20 and in-flight particle characteristics 5 . ANN used to model complex relationship between a set of inputs and outputs without any prior assumption.…”

Section: Methodsmentioning

confidence: 99%

Friction and wear response of nitride coating deposited through PVD magnetron sputtering

Upadhyay

Kumaraswamidhas

2016

Tribology - Materials, Surfaces & Interfaces

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Surface engineering with applied coating plays a vital role in any industrial application. These coatings are meant for better mechanical and tribological characteristics when applied on to the materials. The major challenge in selecting a suitable coating strategy is their input process parameters. There are several parameters which influences the coating properties, but it is hard to choose one of them and ignoring others. Multilayers of tungsten nitride are attracting great interest to modulate their tribological and mechanical properties through physical vapour deposition process due to their wide application range. These multilayer nitride films were deposited through unbalanced reactive magnetron sputtering technique. The tribological tests were performed on a pin-on-disc tribometer at room temperature and it has been observed that friction and wear values reduce drastically while applying multilayer coatings. Later, artificial neural network (ANN) is employed to optimize the tribological properties of sputtered coatings.

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“…A completed treatment of nitrocarburizing using plasma and gas environment C60W on steel samples at a temperature of 570 °C while maintaining a 4 hour and 8 hours is shown in [5].…”

Section: Introductionmentioning

confidence: 99%

Oxinitrocarburizing in Fluidized Bed Technology Applied to Drawing Steels

Cazacu

2018

MMS

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Steels oxinitrocarburizing is a thermochemical treatment in order to obtain a slight increase of mechanical properties associated with increased of corrosion resistance. The paper is based on experiments performed on a plant with fluidized bed. Environment for oxinitrocarburizing is achieved by means of fluidized solid granules sorted by size ranging within 0.10-0.16 mm, resulting from decomposing a gas mixture of methane and ammoniac (initially). Samples are used in low carbon steels. Controlled oxidation is performed at a temperature of 570 °C with superheated water vapor. The results confirm the possibility to obtain layer structure and to increase surface mechanical properties.

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Plasma and gaseous nitrocarburizing of C60W steel for tribological applications

Cited by 17 publications

References 12 publications

A comparative investigation of the corrosion and tribocorrosion behaviour of nitrocarburized, gas nitrided, fluidized-bed nitrided, and plasma nitrided plastic mould steel

A comparative investigation of the corrosion and tribocorrosion behaviour of nitrocarburized, gas nitrided, fluidized-bed nitrided, and plasma nitrided plastic mould steel

Friction and wear response of nitride coating deposited through PVD magnetron sputtering

Oxinitrocarburizing in Fluidized Bed Technology Applied to Drawing Steels

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