Duplex surface treatment of AISI 1045 steel via plasma nitriding of chromized layer

Hakami, Ferial; Sohi, M. Heydarzadeh; Ghani, J. Rasizadeh

doi:10.1016/j.tsf.2011.04.054

Cited by 29 publications

(19 citation statements)

References 8 publications

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“…The coatings are produced by various techniques, such as chemical vapor deposition (CVD), physical vapor deposition (PVD), plasma assisted CVD (PACVD) or plasma assisted PVD (PAPVD) [3,4]. Other duplex processes, such as using thermo-reactive diffusion techniques, chromizing, and nitriding, have also been studied in the literature [5][6][7]. All of these technological processes can be applied to carbides, nitrides, oxides and/or boride hard coatings on various steels and/or other substrates.…”

Section: Introductionmentioning

confidence: 99%

A study of the wear performance of duplex treated commercial low-alloy steel against alumina and WC balls

Beliardouh¹,

Nouveau²,

Walock³

et al. 2014

Surface and Coatings Technology

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is an open access repository that collects the work of Arts et Métiers ParisTech researchers and makes it freely available over the web where possible. The objective of this work is to study the improvement of the tribological properties of low alloy steel using a duplex treatment of low pressure carburizing and the deposition of a Cr-(WC-Co) coating by dual RF magnetron sputtering. The treatments result in a 500 μm thick carburized layer and a sputtered coating thickness of~2 μm. Tribological tests were made with a ball-on-disk tribometer under dry conditions with low load and low speed. The worn surfaces of the disk, the wear counterpart, and resulting debris were analyzed by X-ray diffraction, optical microscopy, optical profilometry, and a scanning electron microscope equipped with an energy-dispersive X-ray spectrometer. The wear performance of the samples was evaluated in terms of wear rates and friction coefficients during the sliding processes against two different counterparts. Experimental results have shown that sliding wear, of the investigated duplex treated low alloy steels, is strongly dependent on the counterface materials. Under testing conditions, the overall wear performance of a Cr-WC coating (Cr/W ratio of 1.12:1) deposited onto the surface of a carburized low alloy steel (0.61 wt.% C; HV = 654 ± 5) can be recommended as the best. The duplex-treated samples suffered severe, concentrated wear when against alumina. This wear is characterized by a combination of delamination, mild abrasion and oxidative wear. However, the wear mechanism seems to be oxidative and adhesive when against WC balls.

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Section: Introductionmentioning

confidence: 99%

A study of the wear performance of duplex treated commercial low-alloy steel against alumina and WC balls

Beliardouh¹,

Nouveau²,

Walock³

et al. 2014

Surface and Coatings Technology

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“…This could be due to the microstructure heterogeneity of boroniobized samples. While the AISI 52100 steel ball slides over an SiC-coated AISI 1020 surface in the untreated condition leading to an artificial reduction of the wear coefficient for this surface condition [28,[41][42][43], the presence of the porous region in the iron/niobium borides interface in the boroniobized samples may lead to a decrease in the load bearing capacity of the substrate, accelerating the beginning of the wear process through the delamination of the niobium boride layer [44][45][46][47]. Indeed, for a 0.98 N applied load and 0.5 g cm −3 abrasive slurry concentration (lower k according to table 1), the wear crater depth obtained from equation (2) ranged from 22.5 to 87.3 μm for a sliding distance variation of 4-96 m. For the condition that showed the higher wear coefficient, 0.49 N applied load and 0.5 g cm −3 slurry concentration, the wear crater depth ranged from 32.3 to 84.5 μm for the same sliding distance variation.…”

Section: Tribological Behaviormentioning

confidence: 99%

Microstructural and tribological characterization of niobium boride coating produced on AISI 1020 steel via multicomponent boriding

Krelling

Almeida

Costa

et al. 2020

Mater. Res. Express

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Niobium boride coating was produced on AISI 1020 steel by multicomponent boriding process. Boriding treatment at1000°C for 4 h was followed by thermo-reactive diffusion technique at 1000°C for 6 h under argon atmosphere. Microabrasive wear tests were carried out using SiC abrasive particles at slurry concentrations of 0.5 and 1.0 g cm −3 . Normal loads of 0.49 and 0.98 N were used. NbB and Nb 5 B 6 phases were identified by XRD analysis. The niobium boride coating thickness was 2.0±0.5 μm and its hardness was 1360±200 HK 0.01 . Owing to the presence of a porous region on the niobium/iron boride layers the abrasive wear resistance decreased comparing to the borided and untreated AISI 1020 steel. Rolling abrasion was the main wear mechanism observed.

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“…The micro-alloying of chromium carbide coatings with one or more elements (titanium, vanadium, boron, silicon, nitrogen, etc.) is one promising alternative to solve this problem 6,[12][13][14][15][16][17][18][19] . The chrome-boronizing process on steel is performed by successive or simultaneous deposition processes of the elements forming the coating 14,16,20 .…”

Section: Introductionmentioning

confidence: 99%

“…Generally, the chromium carbides coatings are obtained by physical vapor deposition (PVD), chemical vapor deposition (CVD), plasma spray, Moltensalt or pack cementation method [21][22][23][24][25][26][27][28] . The chromium-carrier sources used in the pack cementation method are mainly ferrochrome and metallic chromium 12,29 . In a previous study, we reported the reduction products of a concentrate of chromium ore concentrate for this purpose 30 .…”

Section: Introductionmentioning

confidence: 99%

Deposition of Multicomponent Chromium Carbide Coatings Using a Non-Conventional Source of Chromium and Silicon with Micro-Additions of Boron

et al. 2017

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The chromium carbide coatings are widely used in the mechanical industry due to its corrosion resistance and mechanical properties. In this work, we evaluated a new source of chromium and silicon with micro-additions of boron on the deposition of multi-component coatings of chromium carbides in W108 steel. The coatings were obtained by the pack cementation method, using a simultaneous deposition at 1000 o C for 4h. The coatings were analyzed by X-ray diffraction, X-ray energy dispersive spectroscopy, optical microscopy, microhardness test method and pin-on-disc wear test. It was found that the coatings formed on W108 steel were mainly constituted by (Cr,Fe) 23 C 6 , (Cr,Fe) 7 C 3 , Cr 5-x Si 3-x C x+z , Cr 3 B 0,44 C 1,4 and (or) Cr 7 BC 4 . The carbide layers showed thicknesses between 14 and 15 µm and maximum values of microhardness between 15.8 and 18.8 GPa. Also, the micro-additions of boron to the mixtures showed statistically significant influence on the thickness, microhardness and abrasive wear resistance of the carbide coatings.

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Duplex surface treatment of AISI 1045 steel via plasma nitriding of chromized layer

Cited by 29 publications

References 8 publications

A study of the wear performance of duplex treated commercial low-alloy steel against alumina and WC balls

A study of the wear performance of duplex treated commercial low-alloy steel against alumina and WC balls

Microstructural and tribological characterization of niobium boride coating produced on AISI 1020 steel via multicomponent boriding

Deposition of Multicomponent Chromium Carbide Coatings Using a Non-Conventional Source of Chromium and Silicon with Micro-Additions of Boron

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