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

Boztepe, E.; Alves, Alexandra Manuela Vieira Cruz Pinto; Ariza, E.; Rocha, L. A.; Cansever, Nurhan; Toptan, Fatih

doi:10.1016/j.surfcoat.2017.11.033

Cited by 47 publications

(13 citation statements)

References 41 publications

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“…Nitrides such as ε-Fe 2−3N and CrN are noble phases and hence, they provide protection while remaining intact. 13,20,22…”

Section: Resultsmentioning

confidence: 99%

Pulsed plasma nitriding of high velocity oxy-fuel sprayed Inconel 625 coatings

Mindivan

2021

Proceedings of the Institution of Mechanical Engineers, Part J:

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A hardening of high velocity oxy-fuel sprayed Inconel 625 coating systems was performed by pulsed plasma nitriding treatment. After deposition of an Inconel 625 coating, samples were pulsed plasma nitrided at 520 °C for 12 h in a gas ratio of 3:1 N2 and H2 under a constant pressure of 2.5 × 102 Pa. Pulsed plasma nitriding improved the microhardness of the high velocity oxy-fuel sprayed Inconel 625 coating from 355 to 401 HV0.05. The high velocity oxy-fuel-sprayed Inconel 625 coating after pulsed plasma nitriding process showed excellent corrosion resistance as well as a reduction of both the friction coefficient and wear rate during the sliding phase in a 3.5 wt.% NaCl solution against sliding action of Al2O3 ball.

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“…Nitrides such as ε-Fe 2−3N and CrN are noble phases and hence, they provide protection while remaining intact. 13,20,22…”

Section: Resultsmentioning

confidence: 99%

Pulsed plasma nitriding of high velocity oxy-fuel sprayed Inconel 625 coatings

Mindivan

2021

Proceedings of the Institution of Mechanical Engineers, Part J:

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“…The dominant mechanism depends on the phase composition, phase distribution and phase size. The results of studies show that the undissolved carbides in the transformed phase are bene cial in improving the wear resistance property, but the phase interface in multiphase microstructure increases the susceptibility of corrosion and reduces the corrosion resistance [8, 33,34]. Having demonstrated a widely varied microstructural feature produced under different LSQ conditions, it is importance to select the appropriate processing parameters according to the in-service performance requirements.…”

Section: Microstructure Evolutionmentioning

confidence: 99%

Effects of Laser Energy Density On Carbide Dissolution, Element Distribution and Microstructure Evolution of AISI P20 Steel During Laser Surface Quenching

Zhang

Liu

et al. 2021

Preprint

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Laser surface quenching (LSQ) was performed on AISI P20 mould and hot-working die steel with an objective to improve surface characteristics. The steel was treated under three different process parameter conditions. The microstructure, element distribution and residual stresses were investigated through SEM, EDS and XRD analyses. The effect of laser energy density on carbide dissolution/ablation, microstructure evolution were thoroughly investigated. The dissolution/ablation of carbides significantly affected the formation of martensite and retained austenite, and the distribution of elements and phase in the microstructure. The results of the study and analyses of treated surface revealed that the LSQ treatment significantly improved the microstructure, eliminated the pores or other defects. Furthermore, the degree of carbide dissolution/ablation was closely related to the laser energy density. Comparing to Cr7C3, Cr3C2 was more difficult to dissolve at lower laser energy density. Thus, those incompletely dissolved Cr3C2 would hinder the growth of austenite and reduce the carbon content in austenite and lead to the formation of low-carbon martensite. The highest laser energy density (150 J/mm2), was able to produce finer microstructure and significantly reduced the inhomogeneity in distribution of Cr between the poor and the rich Cr areas.

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“…The synergism of corrosion and wear contain the interaction of physics, chemistry, mechanics and electrochemistry [5,6]. In the process of friction, the passive film on the worn surface could be destroyed by friction force and the new passive film is hard to form, which is because the galvanic corrosion takes place at the interface of the passive film and the fresh surface [7,8]. So the microstructure, hardness and roughness of the worn surface will be influenced by corrosion, thereby altering the wear process [3].…”

Section: Introductionmentioning

confidence: 99%

“…MCrAlY (M = Co and/or Nickel) alloys usually act as a protective coating, having high strength, excellent corrosion resistance and wear resistance properties in corrosive environment, as well as having been employed in nuclear power, automotive and marine industries. Meanwhile, the MCrAlY alloys contain amounts of Cr, which has the effect of solid solution strengthening, thus stopping the propagation of dislocations [8,[11][12][13][14][15][16]. Bakhsheshi-Rad et al researched the microstructural, mechanical properties and corrosion behavior of a plasma sprayed NiCrAlY/nano-YSZ duplex coating on an Mg-1.2Ca-3Zn alloy.…”

Section: Introductionmentioning

confidence: 99%

Tribological Performance of a Ni-Based Composite Coating in Artificial Seawater

Liu

Gao

et al. 2019

Coatings

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NiCrAlY and NiCrAlY-Mo coatings were fabricated by atmospheric plasma spraying (APS). The corrosion-wear performance of the coatings was investigated in artificial seawater and the synergistic mechanism between wear and corrosion were evaluated in detail. Results showed that the diffraction peaks of Ni3Al shifted to the right and the microhardness of the coating was improved from 329.8 HV to 342.5 HV with adding the Mo element. Meanwhile, the NiCrAlY-Mo coating had a lower friction coefficient, with a wear rate of 0.26 and 3.69 × 10−6 mm3/Nm, compared to the NiCrAlY coating with a wear rate of 0.37 and 4.67 × 10−6 mm3/Nm. The NiCrAlY coating had severe corrosion and the corrosion mainly occurred in grain boundary. Adding the Mo element, the Mo element was distributed in the grain boundary and the coating had a lower corrosion rate and visibly slighter corrosion. The NiCrAlY-Mo coating had excellent corrosion-wear properties in artificial seawater.

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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

Cited by 47 publications

References 41 publications

Pulsed plasma nitriding of high velocity oxy-fuel sprayed Inconel 625 coatings

Pulsed plasma nitriding of high velocity oxy-fuel sprayed Inconel 625 coatings

Effects of Laser Energy Density On Carbide Dissolution, Element Distribution and Microstructure Evolution of AISI P20 Steel During Laser Surface Quenching

Tribological Performance of a Ni-Based Composite Coating in Artificial Seawater

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