Effect of post-oxidizing on tribological and corrosion behaviour of plasma nitrided AISI 5140 steel

Alsaran, Akgün; Altun, Hikmet; Karakan, Mehmet; Çelik, A.

doi:10.1016/s0257-8972(03)00770-9

Cited by 77 publications

(37 citation statements)

References 14 publications

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“…This treatment can improve the surface hardness, fatigue strength, wear and corrosion resistance of nitride components. 6,7) The previous studies indicated that oxygen addition can increase the ef ciency of gas nitriding, thus the cycle time can be shortened and the energy consumption can be reduced. Oxynitriding processes use air or steam at the end of the nitriding stage, while the complex oxide layer with Fe 2 O 3 and Fe 3 O 4 structures are formed on the surface.…”

Section: Introductionmentioning

confidence: 99%

Deposition of DLC Films onto Oxynitriding-Treated V4E High Vanadium Tool Steel through DC-Pulsed PECVD Process

Chang

Huang³

et al. 2017

Mater. Trans.

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In this work, DLC lms are prepared by DC-pulsed PECVD after the oxynitriding treatment of V4E high vanadium tool steel. The experimental design includes various power densities (200, 400, 600 and 800 mW·cm ) with an unbalanced bipolar-pulsed voltage. The deposition time is 90 min, and the CH 4 gas ow is maintained at 5 sccm, respectively. The experimental results show the duplex coating layers to have better properties when the DLC lms are treated by an appropriate power density (400 mW·cm ) and the highest polarization resistance (258.83 Ω·cm 2 ) after the 3.5 mass% NaCl corrosion test. This study con rms that the wear and corrosion resistance of V4E tool steel can be effectively improved through the DLC/oxynitriding duplex treatment.

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Section: Introductionmentioning

confidence: 99%

Deposition of DLC Films onto Oxynitriding-Treated V4E High Vanadium Tool Steel through DC-Pulsed PECVD Process

Chang

Huang³

et al. 2017

Mater. Trans.

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“…A hardened layer is supported by the high nitrogen martensite and iron nitride. [9][10][11][12][13] To further improve the properties of nitrided surface, some post treatments after the nitriding process were examined [14][15][16][17] , such as the aging process [15][16][17] . A. Alsaran et al 15) found that a large hardening phenomenon occurred by aging after nitriding-quenching treatment and the surface hardness in the low alloy steel reached to 1000 HV caused by the hard α -Fe 16 N 2 phase.…”

Section: Introductionmentioning

confidence: 99%

Wear Resistance of Industrial Pure Iron Treated by Nitriding and Quenching Followed by Aging Process

et al. 2016

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The wear resistance of iron nitrides compound layers and a high nitrogen martensite phase formed in the material surface for industrial pure iron, treated by nitriding and quenching followed by aging process were studied experimentally. Both the compound layer without pores by lowering the nitriding temperature and the high nitrogen martensite phase, showed the same tendency to high wear resistance. On the other hand, the pores in the compound layer made by the longer nitriding time decreased the wear resistance due to the acceleration of crack propagation. Metal ows were observed at the ε-phase in the compound layer very close to the surface after a sliding test. However, no strain hardening was observed. It was also found that the metal ows on a large part of the martensite layer and the hardness increased considerably.These results revealed that the high hardness ε-phase shows high wear resistance due to the plastic deformation, whereas the nitrogen martensite shows high wear resistance by the plastic deformation accompanied with the strain hardening.

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“…The applications of this duplex process are to improve the surface properties of pump components, spring washers under corrosive and tribological loads [7] and to provide a highperformance mechanical system for hydraulic and automotive parts [3,8]. Attempts were made to conduct on post-oxidation processes with different atmospheres: O 2 , H 2 O and CO 2 with or without H 2 or Ar in order to obtain magnetite resulting in the presence of hematite [6,8,9]. This paper is focused on investigating the anticorrosive * corresponding author; e-mail: arturo.munoz@inin.gob.mx effect of plasma post-oxidation in the two types of atmospheres: dry air-like (dal) and environmental air (air) without using H 2 after plasma nitriding on low alloy AISI 4140 steel.…”

Section: Introductionmentioning

confidence: 99%

The Corrosion Enhancement due to Plasma Post-Oxidation Subsequent to Plasma Nitriding of a Steel AISI 4140

et al. 2015

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The corrosion enhancement due to plasma post-oxidation subsequent to plasma nitriding of the samples of low alloy annealed steel AISI 4140 was evaluated. The plasma nitriding was carried out at ≈570• C for 1-3 h in an atmosphere of 75% H2 and 25% N2. After this process post-oxidation at ≈450• C in a gas mixture, air and dry air-like was conducted for an hour. The treated samples were characterized using the XRD, SEM, AFM, potentiodynamic polarization and Vickers microhardness tests. The outcome of combined processes showed the presence of ε and γ nitrided phases in the inner compound layer and in the outer one mostly of magnetite phase and barely visible of hematite one without using H2 in the post-oxidation process. Also in these processes, the corrosion potential proved to be lower in the treated specimens than the untreated ones, and the corrosion current decreased up to one order of magnitude when treated in environment air and air-like ambient.

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Effect of post-oxidizing on tribological and corrosion behaviour of plasma nitrided AISI 5140 steel

Cited by 77 publications

References 14 publications

Deposition of DLC Films onto Oxynitriding-Treated V4E High Vanadium Tool Steel through DC-Pulsed PECVD Process

Deposition of DLC Films onto Oxynitriding-Treated V4E High Vanadium Tool Steel through DC-Pulsed PECVD Process

Wear Resistance of Industrial Pure Iron Treated by Nitriding and Quenching Followed by Aging Process

The Corrosion Enhancement due to Plasma Post-Oxidation Subsequent to Plasma Nitriding of a Steel AISI 4140

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