Investigation of the effects of time and temperature of oxidation on corrosion behavior of plasma nitrided AISI 4140 steel

Mirjani, M.; Mazrooei, J.; Karimzadeh, N.; Ashrafizadeh, F.

doi:10.1016/j.surfcoat.2012.04.064

Cited by 32 publications

(14 citation statements)

References 16 publications

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“…Nitriding is the outstanding concept in which the hard surface is mixed with the tough core. Nitriding thermo chemical process is usually conducted to improve fatigue life, wear or corrosion resistance of the components' surface [1][2][3][4]. High hardness of nitrided layers originates from hard nitride micro precipitates due to low solubility of nitrogen in a-iron.…”

Section: Introductionmentioning

confidence: 99%

Influence of Components Bending on the Consecutive Plasma Nitridation and Barkhausen Noise Emission

Neslušan¹,

Moravec²

2019

Komunikácie

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This paper deals with the non destructive evaluation of components after the plasma nitridation via the Barkhausen noise techniques. Effect of different surface states before the plasma nitriding is studied via the non destructive Barkhausen noise technique, as well as the conventional destructive techniques. Bending of flat samples to different bending angles was performed and magnetic, as well as conventional destructive testing, was carried out on the outer, inner and flat surfaces. The results of experiments show that the Barkhausen noise emission is a function of the heat treatment, whereas intensity of bending and the corresponding deformation are only minor. The different states of the surface before the plasma nitriding result into the similar thickness of the compound layer. Furthermore, the underlying diffusion of near the surface layer state is different.

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Section: Introductionmentioning

confidence: 99%

Influence of Components Bending on the Consecutive Plasma Nitridation and Barkhausen Noise Emission

Neslušan¹,

Moravec²

2019

Komunikácie

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“…Plasma‐polymerized films have been used in various applications such as biocompatible or antibacterial coatings, hydrophobic and super‐hydrophobic surfaces, conductive layers, and anticorrosion resistance films . One of the most important issues for such applications is the types of chemical groups retained in the coating after fragmentation of the precursor by plasma.…”

Section: Introductionmentioning

confidence: 99%

Investigating on plasma polymerization of polyethersulfone membranes by ethylene for membrane distillation

Pedram

Mortaheb

Arefi‐Khonsari

2018

Plasma Processes & Polymers

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PEDRAM ET AL. | 9 of 13 J ¼ 1:74 À 0:19a À 0:56B þ 0:14C À 0:14AB À 0:11BC þ 0:18A 2 þ 0:21B 2 þ 0:22C 2 β ¼ 16:68 þ 1:94A þ 4:24B À 1:13C þ 2:00AB À 1:94A 2 À 1:74B 2 À 2:79C 2 where A, B, and C represent deposition duration, gas pressure, and discharge power, respectively. The analysis of variance (ANOVA) was performed to indicate the significance of the developed model. The Pvalues for all responses are less than 0.0001 denoting that the models are absolutely significant. The calculated R 2 coefficients, which are measures of the variation amount around the mean value, were found to be 0.9951 and 0.9923 for permeation flux and separation factor, respectively.

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“…6 In some case, the need of high corrosion resistance and wear resistance when used in aggressive environments has led to the used of different types of surface treatment methods. 7 The surface nitriding technology is widely employed to improve the chemical (corrosion resistance) and mechanical (fatigue and wear resistance) properties of ferritic steel components by adding nitrogen to stainless steels. [8][9][10] In order to obtain the desired properties of the nitrided materials, it is important to control the structural characteristics of surface nitrided layers, such as composition, crystal structure and morphology by changing nitriding temperature, time, press and other parameters.…”

Section: Introductionmentioning

confidence: 99%

Influence of Nitriding Surface Treatment on Corrosion Characteristics of Ni-free SUS445 Stainless Steel

Shironita

Nakatsuyama

et al. 2016

Electrochemistry

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The heat treatments of Ni-free SUS445 stainless steel under nitrogen and argon gas atmospheres were conducted at 1373-1473 K in the present study. The heat-treated samples were characterized by an X-ray diffraction (XRD), glow discharge optical emission spectroscopy (GD-OES), and scanning electron microscopy (SEM) equipped with energy-dispersive X-ray spectroscopy (EDX). The corrosion behavior of the heat-treated samples was evaluated by linear sweep voltammetry (LSV) measurements in a 0.5 mol dm −3 H 2 SO 4 solution. The results revealed that the nitrided stainless steel at 1373 K presents the best corrosion resistance and the AlN, expanded austenite γ N , CrN and Cr 2 N phases appeared based on the XRD results. In contrast, the corrosion resistance of the heat-treated stainless steel under an argon atmosphere was decreased and there was no change in the microstructure.

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Investigation of the effects of time and temperature of oxidation on corrosion behavior of plasma nitrided AISI 4140 steel

Cited by 32 publications

References 16 publications

Influence of Components Bending on the Consecutive Plasma Nitridation and Barkhausen Noise Emission

Influence of Components Bending on the Consecutive Plasma Nitridation and Barkhausen Noise Emission

Investigating on plasma polymerization of polyethersulfone membranes by ethylene for membrane distillation

Influence of Nitriding Surface Treatment on Corrosion Characteristics of Ni-free SUS445 Stainless Steel

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