Wear resistance of nitrided and DLC coated PH stainless steel

Dalibón, Eugenia L.; Trava-Airoldi, V.J.; Pereira, Lânia Auxiliadora; Cabo, Amado; Brühl, Sonia Patricia

doi:10.1016/j.surfcoat.2013.11.004

Cited by 42 publications

(23 citation statements)

References 34 publications

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“…They have high surface hardness, a low friction coef cient, reduced material adhesion, and they offer high protection against abrasive wear and corrosive attacks. 9,10) However, the poor adhesion of DLC lms on ferrous alloys reduces a wide range of industrial applications. Because the carbon diffuses into the metals delaying the DLC nucleation.…”

Section: Introductionmentioning

confidence: 99%

“…Secondly, the thermal expansion coef cients of the coatings and the steels are not compatible, causing poor adhesion and high residual stresses. 9,11) Therefore, many studies of the intermediate layers of DLC coatings have been frequently reported. 12,13) On the other hand, a number of different techniques have been used for depositing DLC lms such as PVD, RF magnetron sputtering, PECVD, ion beam deposition and cathodic micro-arc discharge.…”

Section: Introductionmentioning

confidence: 99%

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Deposition of DLC Films onto Oxynitriding-Treated V4E High Vanadium Tool Steel through DC-Pulsed PECVD Process

Chang

Huang³

et al. 2017

Mater. Trans.

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In this work, DLC lms are prepared by DC-pulsed PECVD after the oxynitriding treatment of V4E high vanadium tool steel. The experimental design includes various power densities (200, 400, 600 and 800 mW·cm ) with an unbalanced bipolar-pulsed voltage. The deposition time is 90 min, and the CH 4 gas ow is maintained at 5 sccm, respectively. The experimental results show the duplex coating layers to have better properties when the DLC lms are treated by an appropriate power density (400 mW·cm ) and the highest polarization resistance (258.83 Ω·cm 2 ) after the 3.5 mass% NaCl corrosion test. This study con rms that the wear and corrosion resistance of V4E tool steel can be effectively improved through the DLC/oxynitriding duplex treatment.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Deposition of DLC Films onto Oxynitriding-Treated V4E High Vanadium Tool Steel through DC-Pulsed PECVD Process

Chang

Huang³

et al. 2017

Mater. Trans.

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“…Therefore, plasma nitriding is an interesting technique used to produce multi-layered coatings for components employed in highprecision applications. Moreover, this process generates little waste, requires few consumables, is easy to control and compatible with the levels required by industry 10,16 but mostly the same equipment can be used to carry out nitriding and DLC-coating [17][18][19] The resulting coating is composed of two main layers: an external compound layer with the highest hardness values and a diffusion layer with a hardness that decreases toward the core of the material. During plasma nitriding, this nitrided layer structure is achieved by accelerating nitrogen ions against the sample surface, cleaning the surface, heating the workpiece, and providing active nitrogen that diffuses into the matrix 20,21 .…”

Section: Introductionmentioning

confidence: 99%

Effects of Different Plasma Nitrided Layers on the Tribological Performance of DLC Coatings

et al. 2016

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When multifunctional surface engineering processes that combine purpose-oriented phases are applied to soft substrates, a combination of high wear resistance, high load support and low coefficients of friction can be achieved. In this study, the effects of different nitrided layers on the tribological behaviour of a diamond-like carbon (DLC) film deposited on a SAE 1040 steel were investigated. The nitriding was carried out under different temperatures and gas mixtures to create three distinct nitrided layers: two compound layers with predominant ε and γ' phases and a diffusion layer. All of the surfaces were then coated with DLC deposited via plasma-enhanced chemical vapour deposition (PECVD). The tribological tests indicated that the best performance was achieved for a specific combination of hardness, surface roughness and nitride type. The best load-bearing capacity between the DLC coating and the soft substrate was achieved when the nitrided layer was primarily a diffusion layer.

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“…Furthermore, carbon diffuses into the metals delaying the DLC nucleation. And iron has a catalytic effect that leads to the formation of graphite, which can be detrimental to adhesion 5,6,7 . In order to overcome these limitations, and to extend the range of applications of DLC films, different approaches are possible.…”

Section: Introductionmentioning

confidence: 99%

DLC Films Grown On Steel Using An Innovator Active Screen System For PECVD Technique

et al. 2016

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In this work, an active screen plasma discharge system based technology was incorporated in a PECVD reactor for DLC films growth, making it a new development in DLC films deposition. In this case, the active screen system is used to seek better electrons confinement, which might result in high ions density due to the collisions number increase, leading to a possible increase in ionization. DLC films were grown on steel substrates, using two variations of this system. In order to enhance adhesion between coating and substrate, a silicon interlayer was deposited, using different bias voltages. Morphological and structural characterization was performed by scanning electron microscopy, optical profilometry and Raman scattering spectroscopy. Tribological tests were performed by nanohardness, scratch and wear tests. Results showed that the plasma confinement promoted good films adhesion, which may be related to a high sub-implantation. This might be a consequence of the pressure decrease, as well as, to the ions energy distribution narrowing.

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Wear resistance of nitrided and DLC coated PH stainless steel

Cited by 42 publications

References 34 publications

Deposition of DLC Films onto Oxynitriding-Treated V4E High Vanadium Tool Steel through DC-Pulsed PECVD Process

Deposition of DLC Films onto Oxynitriding-Treated V4E High Vanadium Tool Steel through DC-Pulsed PECVD Process

Effects of Different Plasma Nitrided Layers on the Tribological Performance of DLC Coatings

DLC Films Grown On Steel Using An Innovator Active Screen System For PECVD Technique

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