Micro Abrasive Wear Behaviour Study of Carburization and Ion Plasma Nitriding of P20 Steel

Lopes, Henrique Solowej Medeiros; Moreto, Jéferson Aparecido; Manfrinato, Marcos Dorigão; Cruz, Nilson Cipriano da; Rangel, Elidiane Cipriano; Rossino, Luciana Sgarbi

doi:10.1590/1980-5373-mr-2015-0721

Cited by 13 publications

(6 citation statements)

References 6 publications

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“…There is an increase in wear resistance for all treated materials compared to stainless steel, demonstrating the effectiveness of the treatment performed. Also, it is observed that the wear resistance is not directly related to the hardness of the formed layer 18,19 . Although the MoO x sample did not have the highest hardness value among the treated materials, this was the condition of the highest wear resistance.…”

Section: Resultsmentioning

confidence: 99%

Molybdenum Oxide Coatings Deposited on Plasma Nitrided Surfaces

et al. 2022

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Molybdenum trioxide (MoO 3 ) thin films are generally deposit on metallic surfaces to increase their tribological performance. In this manuscript, MoO x coatings were for the first time deposited on plasma nitrided surfaces. Vickers microhardness tests, X-ray diffractometry, and micro abrasive wear tests characterized the samples. It was investigated the effect of temperature in hardness and tribological properties of austenitic stainless steel surfaces. When the temperature of plasma nitriding increases, the coating thickness and the nitrogen diffusion on the treated surface also increases, favoring the hardness of the coatings. After MoO x deposition, the predominant MoO 3 phase with monoclinic and orthorhombic unit cells was observed. MoO x coatings after plasma nitriding demonstrated the highest wear resistance.

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Section: Resultsmentioning

confidence: 99%

Molybdenum Oxide Coatings Deposited on Plasma Nitrided Surfaces

et al. 2022

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“…For the bare material, a low coefficient of initial friction is observed. This latter increases due to the production of the oxidized wear debris, increasing the severity of wear 43 . It should be emphasized that the high values of COF correspond to those related to the occurrence of abrasive wear by scratching 44 .…”

Section: Resultsmentioning

confidence: 99%

Corrosion and Micro-abrasive Wear Behaviour of 2524-T3 Aluminium Alloy with PAni-NPs/PSS LbL Coating

et al. 2019

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In this paper, we present an alternative method to obtain thin films for coating protection on the surface of the AA2524-T3 Al-alloy by using the Layer-by-Layer (LbL) technique. The LbL films were fabricated by alternated immersion of the Al-alloy into a poly(styrene sulfonate) (PSS) and polyaniline nanoparticles (PAni-NPs) solutions, obtaining a PAni-NPs/PSS bilayer architecture. The LbL films were characterized by ultraviolet-visible spectroscopy (UV-Vis), Fourier-transform infrared spectroscopy (FTIR), atomic force microscopy (AFM), electrochemical and micro-abrasive wear tests. The results show that the number of bilayers promotes shifts to less negative potentials, indicating an optimized system, in which the best performance was observed for a 15-bilayer PAni/PSS LbL film. The pitting potential (E pit) values shifted 130 mV (from-610 mV to-480 mV) in comparing a bare Al-alloy. The predominantly wear mechanism for AA2524-T3 with PAni-NPs/PSS bilayers was scratching whereas for the bare material there was an equivalence between scratching and rolling mechanisms. The results proved that the incorporation of PAni-NPS by the LbL method may be propitious as protective coating against corrosion in AA2524-T3 alloy.

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“…The plasma nitriding processes were done in a bell type heater shown in the Fig 2 for about 24 hours, 48 hours, 72 hours respectively. Utilizing a standard pin on disc machine shown in the Fig 3, with the test pin turned at 1000 rpm, with steady load of 100 N, to a constant time of 7 minutes [17]. The wear rates were determined by deciding the weight reduction and the time were recorded when the test is before and after test [21][22][23].…”

Section: Process Performedmentioning

confidence: 99%

“…The wear rates were determined by deciding the weight reduction and the time were recorded when the test is before and after test [21][22][23]. [17][18][19][20]. The case depth of the nitrided layers increased with time of treatment.…”

Section: Process Performedmentioning

confidence: 99%

Formation of Multiple Phase Microstructure and Wear Investigation on Treated AISI 904L SS by Low Temperature Ion Nitriding Process

Subbiah¹,

Sateesh²,

Singh³

et al. 2020

E3S Web Conf.

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In industries, components have to operate under extreme prerequisites such as high load, speed, temperature and at a chemical environment. The materials are selected by commercial availability, cost and by considering by their properties like strength, hardness etc. AISI 904L is a high alloy stainless steel with low carbon content material having poor hardness on the surface and negative wear properties. Many of the engineering failures are due to fatigue, corrosion and poor wear resistance which are initiated in its surface. This causes cracks in the surface which reduces the life of the material. Also the surfaces of the materials are caused by severe thermal, chemical and shock loads. Chosen for this work, AISI 904L materials were subjected to plasma or ion - nitriding process and were treated to 3 different timing parameters like 24 hrs, 48 hrs and 72 hrs respectively, maintaining constant temperature of 650oC. Among the availability of other nitriding process like gas and liquid nitriding, plasma nitriding gives good dimensional stability, uniform treatment, less distortion, uniform case depth irrespective towards size and shape of the specimen. For analyzing the wear properties, a pin on disc machine is utilized making the pin to get weared on disc against a load of 100N at a speed of 1000 rpm. Finally the metallographic studies were done by Scanning Electron Microscopic analysis.

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Micro Abrasive Wear Behaviour Study of Carburization and Ion Plasma Nitriding of P20 Steel

Cited by 13 publications

References 6 publications

Molybdenum Oxide Coatings Deposited on Plasma Nitrided Surfaces

Molybdenum Oxide Coatings Deposited on Plasma Nitrided Surfaces

Corrosion and Micro-abrasive Wear Behaviour of 2524-T3 Aluminium Alloy with PAni-NPs/PSS LbL Coating

Formation of Multiple Phase Microstructure and Wear Investigation on Treated AISI 904L SS by Low Temperature Ion Nitriding Process

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