Effect of Plasma Nitriding on Mechanical and Tribological Properties of 42CrMo4 Steel

Doan, Thanh Van; Dobrocký, David; Pokorny, Zdenek; Kusmič, David; Nguyen, Van Thuan

doi:10.1149/07401.0231ecst

Cited by 8 publications

(7 citation statements)

References 2 publications

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“…In general, the higher nitriding temperatures promoted an increase in the compound layer thickness 44,45 . This increase associated with the ε-Fe 2-3 (C)N phase, which according to Doan et al 46 has a lower friction coefficient, Figure 2a-c, provided the bearing capacity of the compound layer, preventing the beginning formation of microcracks or delamination, as seen in Figure 11a, b.…”

Section: Reciprocating Dry Sliding Wear Testsmentioning

confidence: 81%

Influence of Plasma Nitriding with a Nitrogen Rich Gas Composition on the Reciprocating Sliding Wear of a DIN 18MnCrSiMo6-4 Steel

et al. 2021

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In this study, the sliding wear of a DIN 18MnCrSiMo6-4 continuous cooling bainitic steel plasma nitrided with a nitrogen rich gas composition was investigated. To evaluate the influence of processing time and temperature on mechanical and microstructural characteristics of nitrided layer, the samples were nitrided at 400, 450, 500 and 550 °C for 3, 6 and 9 h. The produced nitrided layers were characterized concerning the microstructure, phase composition, microhardness and surface roughness. The samples were tested by ball-on-flat reciprocating dry sliding for friction coefficient and wear analysis. The tests were stopped after a given damage criteria involving the rapid growth of the friction coefficients and wear. The correlation of the different treatment parameters and resulting case depths and surface hardness with sliding distance at the time of microcracks formation or delamination of the surface layer was evaluated statistically by the analysis of variance (ANOVA). The plasma nitrided samples at 550 °C showed better wear performances in the ball-on-flat tests than the other groups investigated, since these samples have a thicker compound layer and diffusion zone higher than the other conditions investigated. In general, the beginning wear is slower because of the hardest region of the compound layer.

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Section: Reciprocating Dry Sliding Wear Testsmentioning

confidence: 81%

Influence of Plasma Nitriding with a Nitrogen Rich Gas Composition on the Reciprocating Sliding Wear of a DIN 18MnCrSiMo6-4 Steel

et al. 2021

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“…One of the possible candidates is plasma nitriding. Nitriding provides an increase of the surface hardness, enhancement of wear and corrosion resistance, and, at the same time, a decrease of the surface friction coefficient and the surface sensitivity to inducing cracks (2,10,11). This technology is based on saturating the material surface by nitrogen in a nitrogen-rich atmosphere.…”

Section: Introductionmentioning

confidence: 99%

Possibilities of the Utilization of Nitriding on Case-Hardening Steels

Procházka¹,

Pokorny²,

Nguyen³

2020

ECS Trans.

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This paper studies the possibility of using plasma nitriding for treating case-hardening steels. For the experiment, the case-hardening steels equivalent 1.7131 (i.e., CSN 41 4220) and equivalent 1.5752 (i.e., CSN 41 6426), used in manufacturing of exposed parts of military and special vehicles as well as in parts of weapons, were selected. The verification of chemical composition was performed by the optical emission spectrometer Tasman Q4 Bruker. For observations of the microstructure and assessment of compound layers, the instrument Olympus DSX500i was used. In accordance with ISO 18203:2016(E), the depth of diffusion layers was evaluated from profiles of microhardness measured by the automated microhardness tester LM247 AT LECO. The results of the experiments show benefits of applying plasma nitriding upon the selected case-hardening steels.

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“…[12][13][14]. By a purposeful control of the atmosphere´s composition and other parameters such as pressure, temperature or voltage, current and plasma density, it is possible to appropriately set nitriding conditions according to a selection of the material and also influence a composition of the resulting nitride layer as well as its properties [15]. Nitride layer is mostly composed of two (sub)-layers.…”

Section: Introductionmentioning

confidence: 99%

wear resistance enhancement of Case-hardening steels by utilizing plasma nitriding in military applications

Procházka

Studeny

Nguyen

2021

METAL 2021 Conference Proeedings

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Effect of Plasma Nitriding on Mechanical and Tribological Properties of 42CrMo4 Steel

Cited by 8 publications

References 2 publications

Influence of Plasma Nitriding with a Nitrogen Rich Gas Composition on the Reciprocating Sliding Wear of a DIN 18MnCrSiMo6-4 Steel

Influence of Plasma Nitriding with a Nitrogen Rich Gas Composition on the Reciprocating Sliding Wear of a DIN 18MnCrSiMo6-4 Steel

Possibilities of the Utilization of Nitriding on Case-Hardening Steels

wear resistance enhancement of Case-hardening steels by utilizing plasma nitriding in military applications

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