Surface Properties of Fe4N Compounds Layer on AISI 4340 Steel Modified by Pulsed Plasma Nitriding

Díaz-Guillén, J.C.; Vargas‐Gutiérrez, G.; Granda‐Gutiérrez, E. E.; Zamarripa-Piña, J.S.; Pérez-Aguilar, S. I.; Candelas-Ramírez, J.; Álvarez‐Contreras, Lorena

doi:10.1016/j.jmst.2013.01.017

Cited by 44 publications

(11 citation statements)

References 13 publications

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“…Plasma nitriding is a modern thermochemical treatment used for increasing the hardness, corrosion and wear resistance of metal parts [1][2][3][4][5][6][7][8][9][10][11]. The parts to be treated (known as the charge) form the cathode, and the furnace wall is the anode.…”

Section: Introductionmentioning

confidence: 99%

Effect of Electric Potentials on Microstructure, Corrosion and Wear Characteristic of the Nitrided Layer Prepared on 2Cr13 Stainless Steel by Plasma Nitriding

Zhang

Qiu

et al. 2018

Acta Metall. Sin. (Engl. Lett.)

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Plasma nitriding is a widely used technology to enhance the surface performance and extend the service life of alloy parts. The current research mainly focuses on the influences of time, temperature, gas type and pressure parameters on nitriding behavior, while fewer studies have been conducted on the electric potential. This paper mainly reports the effect of the electric potential on nitriding behavior. Test conditions were set using cathodic, anodic and floating potentials in a plasma nitriding furnace. 2Cr13 stainless steel was nitrided at 450°C for 5 h in an NH 3 atmosphere. The experimental results show that the nitriding treatment can be well performed under the different electric potentials, but differences exist in microstructures, morphologies and performance results of the modified layers. The thickness and hardness values of the nitrided layer are ranked as follows: cathodic [ anodic [ floating potential. The anodic nitrided surface has an obvious particle deposition layer composed of nitrides and oxides. Electrochemical and tribological experiments show that the corrosion resistance and wear resistance were significantly improved after a nitriding treatment using the three electric potentials. Moreover, the floating nitriding treatment resulted in the best tribological performance and corrosion resistance.

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Section: Introductionmentioning

confidence: 99%

Effect of Electric Potentials on Microstructure, Corrosion and Wear Characteristic of the Nitrided Layer Prepared on 2Cr13 Stainless Steel by Plasma Nitriding

Zhang

Qiu

et al. 2018

Acta Metall. Sin. (Engl. Lett.)

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“…The effects of nitriding parameters such as temperature, nitrogen flow, and time on nitriding depth, hardness, and crack sensitivity were investigated. Authors in [8] studied the surface properties of the Fe 4 N layer on steel modified by pulsed plasma nitriding [8]. Authors in [9] studied the phase structure and surface hardness value of AISI H13 ion nitrided steel under different temperatures.…”

Section: Introductionmentioning

confidence: 99%

A Study on the Influence of Plasma Nitriding Technology Parameters on the Working Surface Deformation of Hypoid Gears

2022

Eng. Technol. Appl. Sci. Res.

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This paper presents the results of the research on the influence of plasma nitriding technology parameters on the working surface deformation of hypoid gears. Blue light technology with non-contact measuring devices is used to determine the working surface deformation of hypoid gears after plasma nitriding. The study has determined a regression equation showing the influence of plasma nitriding technology parameters on the deformation of the working surface of the hypoid gear. The minimum deformation optimization value at the planning area is 0.0071746 at permeation temperature TL=4.89oC, permeation time h=510h, and gas flow 1 G1=6.02L/h.

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“…At the temperature of 591 • C, the nitride layer consists of three phases: ε-Fe 2 N nitride, γ 0 -Fe 4 N nitride and nitrogen ferrite, which contains 0.01% nitrogen at room temperature. At the temperature of 600-650 • C, the γ phase is formed, which, when slowly cooled down to the temperature of 591 • C, transforms into eutectoid ε + γ 0 [5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

An Experimental Study of Temperature Effect on Properties of Nitride Layers on X37CrMoV51 Tool Steel Used in Extrusion Aluminium Industry

Hubicki¹,

Richert²,

Wiewióra³

2021

Prime Archives in Material Science

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The paper concerns the effect of annealing time and temperature on the properties of the nitride layer on X37CrMoV51 tool steel used in the extrusion aluminium industry. Samples made from X37CrMoV51 steel were hardened and tempered, and then nitrided at 530 • C. After nitriding, the samples were annealed in a furnace at 470 • C for 8 h, 12 h, 24 h, 30 h and 60 h, and additionally for 20 h at 270 • C. The samples were tested for structure, hardness and abrasion immediately after nitriding and again after annealing. It was found that annealing the nitrided samples leads to degradation of the nitride layer, accounting for the decrease of hardness. The annealing of the samples at 470 • C, over 12 h causes a decrease in mean hardness value from 1176 HV to 1103 HV, and annealing the samples over 30 h at this temperature leads to a decrease in hardness to 964 HV. The changes in nitrogen content in the white (compound) and diffusion layers and the resulting consequences of changes in phase composition and properties were evaluated. Annealing over 30 h at 470 • C caused the white layer to disappear and the average nitrogen content in the diffusion layer to decrease to the level of about 5-6 at%.

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Surface Properties of Fe4N Compounds Layer on AISI 4340 Steel Modified by Pulsed Plasma Nitriding

Cited by 44 publications

References 13 publications

Effect of Electric Potentials on Microstructure, Corrosion and Wear Characteristic of the Nitrided Layer Prepared on 2Cr13 Stainless Steel by Plasma Nitriding

Effect of Electric Potentials on Microstructure, Corrosion and Wear Characteristic of the Nitrided Layer Prepared on 2Cr13 Stainless Steel by Plasma Nitriding

A Study on the Influence of Plasma Nitriding Technology Parameters on the Working Surface Deformation of Hypoid Gears

An Experimental Study of Temperature Effect on Properties of Nitride Layers on X37CrMoV51 Tool Steel Used in Extrusion Aluminium Industry

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