Sliding wear behaviour of electrolytic plasma nitrided cast iron and steel

Nie, Xueyuan; Wang, L.; Yao, Zhongping; Zhang, L.; Cheng, F. T.

doi:10.1016/j.surfcoat.2005.08.046

Cited by 101 publications

(47 citation statements)

References 8 publications

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“…Nie [6] et al have reported that plasma nitriding treatment could significantly enhance the wear performances of cast iron G3500 and cast steel S0050A under pin-on-disk (POD) sliding conditions. The wear was characterized by slightly abrasive wear and polishing.…”

Section: Introductionmentioning

confidence: 99%

Tribological Behavior of Nitrided Ductile Iron D6510 under Different Contacting Conditions

2018

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Two different nitriding techniques, named plasma nitriding and fluidized bed nitriding, were applied for surface modification of ductile cast iron NAAMS-D6510. Two test methods (i.e., Pin-on-disc tribotest and inclined sliding wear test) were used to generate different tribological contact-loading conditions. While the pin-on-disc (POD) test had a vertical contact and relatively low stress applied on the mating surfaces, the inclined sliding wear test created a tilting contact with extremely high pressing pressure. The cross-sectional hardness and nitrogen concentration profiles along the case hardened layers were measured using a microhardness tester and energy dispersive spectroscope (EDS), respectively. Surface profilometry and scanning electron microscopy (SEM) were employed to measure and observe wear tracks after the tribological tests. The test results showed that the plasma nitrided sample was subjected to more severely abrasive/adhesive wear with numerous surface fatigue cracks, compared to the sample treated by fluidized bed nitriding, during the highly stressed inclined sliding wear test. This phenomenon was found to be attributed to their different hardness and nitrogen concentration profiles. A smaller hardness gradient between the compound layer and the case diffusion zone, and a thicker case hardened layer (provided from the fluidized bed nitriding in this study) could improve the wear resistance and the surface fatigue cracking resistance against the high contact loads. On contrast, less difference could be observed between the two different nitridingtreated samples during the POD tests. Moreover, the oxidation layer on the top of the compound layer of plasma nitrided sample may be beneficial for friction reduction under a low contact pressure condition like the POD sliding, but it would be soon removed and lost its advantage under the high contact pressure condition as for the inclined sliding case.

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Section: Introductionmentioning

confidence: 99%

Tribological Behavior of Nitrided Ductile Iron D6510 under Different Contacting Conditions

2018

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“…с целью по-лучения заданных поверхностных свойств у обрабатывае-мых изделий: высоких прочностных характеристик при це-ментации [1][2][3], высокой твердости при борировании [4], повышенной износостойкости при азотировании [5,6].…”

Section: Introductionunclassified

Anode plasma electrolytic saturation of low-carbon steel with carbon, nitrogen, boron, and sulfur

Кусманов¹,

Наумов²,

Tambovskiy³

et al. 2015

LoM

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“…This interest is to be expected because of the favorable combination of strength, toughness, and wear resistance that can be obtained from various grades of ductile iron compared with the conventional grades of metal alloys [1,2].…”

Section: Introductionmentioning

confidence: 99%

Reciprocating Wear Behavior of Ductile Cast Iron Modified by Pulse Plasma Technology

Ayday

Durman

2014

Acta Phys. Pol. A

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Wear resistance of ductile iron can be improved through di erent surface engineering techniques, each having some limitations and drawbacks. Recently, a new method called pulse plasma technology has been introduced, which through local reinforcement with inserts improves wear resistance of ductile iron without compromising other properties. This paper deals with the improvement of the wear resistance of ductile iron surface modi ed by pulse plasma technology using a tungsten electrode. The surfaces of the samples were treated by C3H8, air, and oxygen gases. The surface morphology and the phase structure in the near surface region of original and treated samples were analyzed with optic microscope, scanning electron microscope and energy-dispersive spectroscopy. The surface properties were evaluated by measuring the microhardness, wear properties and friction coe cient, as well as the elemental depth pro les and chemical composition of the modi ed layer. It was found that the microhardness of the treated samples was much higher. The tribological resistances were also signi cantly improved, as con rmed by the reduced friction coe cient and wear track width. This improvement can be attributed to the di usion of tungsten on the surface layer.

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Sliding wear behaviour of electrolytic plasma nitrided cast iron and steel

Cited by 101 publications

References 8 publications

Tribological Behavior of Nitrided Ductile Iron D6510 under Different Contacting Conditions

Tribological Behavior of Nitrided Ductile Iron D6510 under Different Contacting Conditions

Anode plasma electrolytic saturation of low-carbon steel with carbon, nitrogen, boron, and sulfur

Reciprocating Wear Behavior of Ductile Cast Iron Modified by Pulse Plasma Technology

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