Corrosion resistance of niobium carbide coatings produced on AISI 1045 steel via thermo-reactive diffusion deposition

OrjuelaG., Alejandro; Rincon, R.M.; Olaya, Jhon J

doi:10.1016/j.surfcoat.2014.10.012

Cited by 69 publications

(43 citation statements)

References 39 publications

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“…However these properties are additionally dependent on the fabrication process, presence of impurities and etc [29]. A study conducted by Orjuela G. and coworkers found hardness values of 26 GPa for niobium carbide coatings produced by TRD on a carbon steel employing nanoindentation [22]. These values are in close agreement with the results of the present work.…”

Section: Metallography and X-ray Diffractionsupporting

confidence: 92%

“…Polarization and impedance tests were performed in 3.0% NaCl solution and indicated that saline solution reaches the substrate by penetrating trough the pores and defects present on the carbide layer. Furthermore, the authors did not observe corrosion caps after polarization and their work was conducted at a maximum scanning potential of 0.00mV [22]. In the present study up to 1.125V was applied (see Fig.…”

Section: Accepted Manuscriptmentioning

confidence: 52%

“…A recent research indicates that percentage of ferro-niobium added to the bath did not influence the corrosion resistance of the NbC layer. However, it is suggested that porosity slightly decreases as the amount of ferro-niobium increase and that porosity favors the corrosion process [22]. Therefore it is important to understand the electrochemistry of such coatings in order to expand its possible application range.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

“…12 resistance of niobium carbide coatings is probably due to the formation of niobium oxide (Nb 2 O 5 ) at the coated surfaces [22].…”

Section: Accepted Manuscriptmentioning

confidence: 99%

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Wear and corrosion of niobium carbide coated AISI 52100 bearing steel

Fernandes

Gallego

Picon

et al. 2015

Surface and Coatings Technology

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Bearing steels must have high hardness, good wear resistance and dimensional stability. In the present work the AISI 52100 bearing steel was selected as the substrate for a niobium carbide coating produced by a salt-bath thermoreactive deposition process. The present work addresses the effect of niobium carbide coating on the wear and corrosion resistance of the abovementioned steel. A homogeneous layer composed solely by the cubic niobium carbide (NbC) was produced. The carbide coating yielded average hardness and elastic modulus of 26GPa and 361GPa, respectively. No significant decarburization was detected beneath the case by means of hardness fluctuations. Dry wear tests resulted in worn volumes 10 times smaller for the NbC coated steel, comparatively to the untreated substrate, at three different applied loads. Corrosion tests in NaCl solution indicated an improved behaviour for the carbide coated bearing steel at applied potentials inferior than 250mV. At higher potentials the electrolyte appears to penetrate trough the layer yielding wide corrosion caps.

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Section: Metallography and X-ray Diffractionsupporting

confidence: 92%

Section: Accepted Manuscriptmentioning

confidence: 52%

Section: Accepted Manuscriptmentioning

confidence: 99%

“…12 resistance of niobium carbide coatings is probably due to the formation of niobium oxide (Nb 2 O 5 ) at the coated surfaces [22].…”

Section: Accepted Manuscriptmentioning

confidence: 99%

See 2 more Smart Citations

Wear and corrosion of niobium carbide coated AISI 52100 bearing steel

Fernandes

Gallego

Picon

et al. 2015

Surface and Coatings Technology

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“…Also, adhesion problems related to the different thermal expansion coefficients of the coating and substrate material were also observed [3]. Many researches were done to make hard coatings with high adhesion by using controlled arc plasma deposition [4], plasma focus device [5] or through deposition by combined magnetron deposition and ion implantation [6] and by thermoreactive diffusion deposition [7].…”

Section: Introductionmentioning

confidence: 99%

Study of the interaction between a zirconium thin film and an EN C100 steel substrate: Temperature effect

Benouareth

Tristant

Jaoul

et al. 2016

Vacuum

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HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. AbstractZirconium thin films were grown on high carbon steel substrates EN C100 (1 %wt. of carbon) by RF magnetron sputtering. In order to study the reactivity of the film/substrate system as a function of the temperature, one hour vacuum annealing was carried out for different temperatures between 600°C and 1100°C. The films were then analyzed by X-ray diffraction, scanning electron microscopy, glow discharge optical emission spectroscopy (GDOES) and nanoindentation.The obtained results showed a progressive transformation of zirconium film to zirconium carbide.Carbon atoms diffusion from substrate toward the film induced this transformation. The sample annealed at 900°C exhibited the best mechanicals properties (H =17 GPa and E = 220 GPa).Samples treated at higher temperature were affected by oxidation and high microporosity. Even if the conversion is uncomplete, annealing significantly promotes adhesion of the film on the substrate.

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Production of Niobium Carbide Layers on High‐Strength Bainitic Steels by Thermochemical Treatment of Thermoreactive Diffusion Followed by Austempering

Oliveira

Triani

Filho

et al. 2021

steel research int.

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High-strength bainitic steels obtained by the low-temperature austempering heat treatment belong to the third generation of advanced high-strength steels. These materials were developed through innovative heat treatments of low-alloy steels to meet demands of the automotive industry, such as increased resistance-to-weight ratio. [1] Steels obtained by low-temperature austempering, at just above the martensite start (M s ) temperature, are characterized by the presence of carbide-free bainite (CFB). Silicon contents around 1.2À1.5 wt% are normally used to suppress cementite formation, enriching the austenite in carbon, which becomes metastable at room temperature, allowing the transformationinduced plasticity (TRIP) effect. [2,3] It is important to highlight the effect of molybdenum and manganese, used to increase hardenability, and the addition of niobium to refine the austenitic grain and increase bainitic transformation rates. [4,5] Regarding the microstructural characteristics of high-silicon bainitic steels, the presence of granular and plate bainite favors high combinations of strength and toughness, making them attractive for applications in the railway sector [6,7] and in the manufacturing of precision gears, providing stress and distortion-free parts as no quench is used. [8,9] Therefore, surface hardening techniques are of great technological interest to increase component lifespan and decrease maintenance time. Studies show the efficiency of techniques such as shot peening, nitriding, and boriding thermochemical treatments for this purpose. [9][10][11][12] Another promising alternative is thermoreactive diffusion (TRD) treatment, which, as in the boriding treatment, can be directly incorporated into the austempering process without the need for a new heating step, as used, for example, in the case of tempering after quenching for saving time and energy. TRD in conjunction with the austempering treatment has already been successfully applied to vermicular and ductile cast iron, where, after removal from the TRD bath, samples were directly cooled and held at 300 C in the austempering salt bath. [13] The TRD process involves the production of hard and highly resistant carbide layers in ferrous alloys. This treatment utilizes a

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Corrosion resistance of niobium carbide coatings produced on AISI 1045 steel via thermo-reactive diffusion deposition

Cited by 69 publications

References 39 publications

Wear and corrosion of niobium carbide coated AISI 52100 bearing steel

Wear and corrosion of niobium carbide coated AISI 52100 bearing steel

Study of the interaction between a zirconium thin film and an EN C100 steel substrate: Temperature effect

Production of Niobium Carbide Layers on High‐Strength Bainitic Steels by Thermochemical Treatment of Thermoreactive Diffusion Followed by Austempering

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