Corrosion resistance improvement of high carbon low alloy steel by plasma nitriding

Basu, A.; Majumdar, Jyotsna Dutta; Joseph, Alphonsa; Mukherjee, S.; Manna, I.

doi:10.1016/j.matlet.2008.02.001

Cited by 79 publications

(33 citation statements)

References 11 publications

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“…Boriding and plasma nitriding are used in numerous applications in industries such as the manufacture of machine parts for plastics and food processing, packaging and tooling, as well as pumps and hydraulic machine parts, crankshafts, rolls and heavy gears, motor and car construction, cold and hot working dies and cutting tools. The corrosion behavior of plasma nitrided and borided steels has been evaluated by a number of investigators [15][16][17][18][19][20][21] . However, there is no information about the corrosion behaviors of plasma nitrided and borided AISI M2 steel.…”

Section: Introductionmentioning

confidence: 99%

Corrosion behavior and characterization of plasma nitrided and borided AISI M2 steel

2014

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This study investigates the corrosion behaviors of plasma nitrided (PN) and borided AISI M2 steels. The PN process was carried out in a dc-plasma system at a temperature of 923K for 6 h in a gas mixture of 80%N 2 -20%H 2 under a constant pressure of 5 mbar. The boriding process was carried out in Ekabor-II powder at a temperature of 1223K for 6 h. X-ray diffraction analysis on the surface of the PN and borided steels revealed the presence of FeB, Fe 2 B, CrB, MoB, WB, FeN, Fe 2 N, Fe 3 N and Fe 4 N compounds. Corrosion surfaces of the samples were analyzed using a SEM microscopy and X-ray energy dispersive spectroscopy EDS. The corrosion resistance of PN and borided AISI M2 steel is higher compared with that of untreated AISI M2 steel. Corrosion resistances of the PN and borided AISI M2 steel increased the 4-6-fold.

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Section: Introductionmentioning

confidence: 99%

Corrosion behavior and characterization of plasma nitrided and borided AISI M2 steel

2014

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“…According to the results, in both neutral and acidic environment, the erosion-corrosion resistance of investigated steel was improved by means of 350°C nitriding, but decreased through 550°C nitriding for reasons provided earlier in the text. Basu et al (2008) observed significant improve in corrosion properties of plasma nitrided AISI 52100 bearing steel. The authors attribute good corrosion resistance in aqueous medium to presence of ε and γ' nitrides in the modified layer.…”

Section: Corrosion Resistancementioning

confidence: 80%

Direct Current and Pulsed Direct Current Plasma Nitriding of Ferrous Materials a Critical Review

Łępicka

Grądzka-Dahlke

2016

Acta Mechanica Et Automatica

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Nowadays, the improvement of ferrous materials performance is a problem of high interest. One of well-known wear-and corrosion properties improving technique is plasma nitriding, in which elemental nitrogen is introduced to the surface of a metal part for subsequent diffusion into the material. As a result, a compound, "white" layer and a diffusion zone are formed at the detail's surface. Most of the authors positively describe the effects of surface ion nitiding. On the other hand, there are also reports on adverse effects of direct current and pulsed direct current plasma nitriding on ferrous materials performance. Therefore, an attempt to provide comprehensive summary on direct current and pulsed direct current ion nitriding and its influence on ferrous materials' mechanical and corrosion properties has been made. According to the results, some of the technique drawbacks are hard to avoid in mass production.

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“…The corrosion resistance of nitrided steels depends on the phase composition and compound layer integrity [7,8]. A positive influence of ε-phase (Fe 2−3 N) to corrosion resistance increase had been found; this increased corrosion resistance can be further increased by the post-oxidizing process (surface oxidation) of the nitride layer [9][10][11]. Corrosion resistance of plasma nitrided 42CrMo4 steel (AISI 4137/4140), used in weapon industry for breech mechanism manufacturing, was compared with another surface technologies used for surface treatment of breech parts namely: alkali blackening used for optical and aesthetic reasons, manganese phosphate used for running-in improvement and nitrocarburizing (Tenifer ) for wear and corrosion resistance increasing.…”

Section: Introductionmentioning

confidence: 99%

Corrosion resistance of surface treated 42CrMo4 steel

Kusmič¹,

Hruby²,

Bachárová³

2016

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This article deals with corrosion resistance comparison of plasma nitrided 42CrMo4 steel to another surface technologies used for breech mechanism manufacturing in the armament production. Increasing of demands on materials used for armament production and in other industrial applications leads to the innovation of technologies in the field of surface treatment, especially wear resistance, surface hardness, running-in properties and corrosion resistance, optical demands and others. For the evaluation of experimental corrosion resistance were plasma nitrided samples of 42CrMo4 steel compared with alkali blackening, manganese phosphate and Arcor technologies. The conditions of plasma nitriding process were set to provide exactly defined nitride layers with defined parameters. In this case, the above-mentioned surface technologies were applied to individual samples of 42CrMo4 steel, which were subsequently metallographically evaluated and the hardness and microhardness were measured. The corrosion resistance comparison was realized by the NSS corrosion tests in the condensation chamber and visually evaluated. The results and comparison of corrosion resistance of plasma nitrided steel samples with above-mentioned surface treatment technologies showed significant differences in corrosion rate propagation. Thank to different plasma nitriding conditions, there are evident differences in corrosion resistance between the plasma nitrided steel samples as well. The corrosion resistance evaluation is supplemented by the surface layer characteristics. K e y w o r d s : plasma nitriding, breech mechanism, corrosion resistance

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Corrosion resistance improvement of high carbon low alloy steel by plasma nitriding

Cited by 79 publications

References 11 publications

Corrosion behavior and characterization of plasma nitrided and borided AISI M2 steel

Corrosion behavior and characterization of plasma nitrided and borided AISI M2 steel

Direct Current and Pulsed Direct Current Plasma Nitriding of Ferrous Materials a Critical Review

Corrosion resistance of surface treated 42CrMo4 steel

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