Study of Surface Modification of Niobium Caused by Nitriding and Cathodic Cage Deposition

Macedo, Francisco Rafael Campos de; Monção, Renan Matos; Queiroz, J. C. A.; Libório, Maxwell Santana; Costa, José A. P.; Rossino, Luciana Sgarbi; Danelon, Miguel Rubira; Feitor, Michelle Cequeira; Costa, Thércio Henrique de Carvalho; Sousa, Rômulo Ríbeiro Magalhães de

doi:10.1590/1980-5373-mr-2022-0613

Cited by 2 publications

(1 citation statement)

References 26 publications

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“…The literature reports the use of different alloys (silver 29 , copper 30 , titanium 31 , nickel 32 , chromium 33 , nickel/chromium 34 ) in the composition of the cage for the treatment of metallic samples 26 . Macedo et al 35 , increased samples' hardness and wear resistance with niobium cathodic cage plasma treatment. Silva et al 26 , demonstrated that CCPD on stainless steel exhibited good performance in terms of corrosion resistance at low temperatures (350°C).…”

Section: Introductionmentioning

confidence: 99%

Study of the Properties of Iron and Vanadium Nitride Coatings by CCPD on 1080 Steel

Brito,

Nôleto,

Silva

et al. 2024

Mat. Res.

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In this study, nanostructured coatings of VN 2 /Fe 3 N/Fe 4 N are synthesized by Plasma Deposition (CCPD) using a vanadium cathodic cage and subject to cathodic and floating potential treatments. Microstructural and mechanical properties of coated SAE 1080 steel samples are investigated using X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Vickers microhardness (HV), and surface roughness analysis. The coating produced under cathodic potential treatment exhibited a nitridebased microstructure (VN 2 , Fe 3 N, Fe 4 N), with surface morphology consisting of clusters of granular structures with varied particle sizes. The coating produced under floating potential predominantly exhibited the iron nitride phase (Fe 3 N) with a morphology composed of uniformly sized grains. Microhardness testing showed that both layers exhibited more excellent plastic deformation resistance than the substrate. Roughness measurements confirmed a more organized microstructure profile for the sample treated under floating potential. This study demonstrates that the CCPD-produced cathodic potential coating can be utilized in tribological applications.

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Section: Introductionmentioning

confidence: 99%

Study of the Properties of Iron and Vanadium Nitride Coatings by CCPD on 1080 Steel

Brito,

Nôleto,

Silva

et al. 2024

Mat. Res.

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Influence of Time and Temperature of Plasma Nitriding on the Wear Resistance of Ni–Cr–Mo‐Based Films Deposited by AISI 904L Cathodic Cage on SAE 6160 Steel

Medeiros Filho,

Libório,

Coan

et al. 2024

steel research int.

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This work aims to evaluate the effects on surface hardness and wear resistance of plasma nitriding treatment on SAE 6160 steel that exhibits cathodic cage deposition of AISI 904L, with high nickel content and medium chromium content, varying the treatment time and temperature. The deposition temperature is 450 °C, and after deposition, the samples are nitrided at 450 and 500 °C for 2 and 4 h. All samples are characterized by X‐Ray diffraction, Vickers microhardness, optical microscopy, and wear resistance. The results show that for longer nitriding times and temperatures, there is the formation of the S phase, expanded austenite, and the precipitation of CrN, resulting in lower wear resistance among the nitrided samples, but considering that the resistance of all samples is higher to AISI 6160 samples. All samples show high surface hardness and a diffusion layer between 69 and 170 μm; the only deposited sample shows good resistance to wear due to the deposition efficiency of films based on Ni–Cr–Mo.

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Study of Surface Modification of Niobium Caused by Nitriding and Cathodic Cage Deposition

Cited by 2 publications

References 26 publications

Study of the Properties of Iron and Vanadium Nitride Coatings by CCPD on 1080 Steel

Study of the Properties of Iron and Vanadium Nitride Coatings by CCPD on 1080 Steel

Influence of Time and Temperature of Plasma Nitriding on the Wear Resistance of Ni–Cr–Mo‐Based Films Deposited by AISI 904L Cathodic Cage on SAE 6160 Steel

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