Ion and Gas Nitriding Applied to Steel Tool for Hot Work X38CrMoV5 Nitriding Type: Impact on the Wear Resistance

Slima, S. Ben

doi:10.4236/msa.2012.39093

Cited by 13 publications

(3 citation statements)

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“…As the temperature increases, the saturation with carbon increases and with nitrogen decreases. At the specified temperature, the surface layer contains ~ 1.0 % C and 0.5 % N [25]. Despite the lower process temperature compared to carburizing, the saturation rate remains almost the same -0.15 mm/h.…”

Section: Statement Of the Goal And Objectives Of The Studymentioning

confidence: 99%

Influence of Nitrocarburizing on Increasing the Service Life of Elastic Elements of Direct Flow Valves

Krmela¹,

Говорун²,

Berladir³

et al. 2021

Manufacturing Technology

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The effect of the nitrocarburizing process in pastes with heating in a chamber furnace on the structure and strength characteristics of 09Cr15Ni8Al corrosion-resistant steel was investigated. The technology of thermochemical treatment was developed, which included nitrocarburizing in pastes with heating in a chamber furnace at different holding times. The thickness of the diffusion layer and its microhardness were determined after nitrocarburizing. To determine the efficiency and select the modes of thermochemical treatment, tests were carried out for the investigated steel's strength characteristics. The main feature of the structure of the diffusion layers of valve steels, obtained by nitrocarburizing in the nitrogencarbon paste, is the presence of an inhomogeneous layer with clearly distinguished zones.

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Section: Statement Of the Goal And Objectives Of The Studymentioning

confidence: 99%

Influence of Nitrocarburizing on Increasing the Service Life of Elastic Elements of Direct Flow Valves

Krmela¹,

Говорун²,

Berladir³

et al. 2021

Manufacturing Technology

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“…The optimum result is obtained at the temperature of 800 0 C in 5 hours [8][9]. Ben Slima [10] showed that stiffening before ion and gas nitriding to the tool steel material improve the depth of white layers. Multistage nitridation at 550 0 C and 530 0 C on the H13 steel make the white layer appear in the surface of the material at 5 micron caused by the highest nitrogen concentration.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Chemical Compositions of Tool Steel on the Level of White Layers Homogeneity and the Surface Hardness

Widi¹,

Wardana²,

Sujana³

2013

IJMMM

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Abstract-The process of nitriding is commonly used in electronic hardware besides the automotive components. So far, there are still gains no optimum result. The atom diffusivity homogeneity effects on the material surface mechanical characteristics are yet to be done. The effecting factors like the composition of the chemicals elements in the materials are needed to be observed. In this paper the nitriding process on three types of tool steel materials with a different chemical composition was observed. The nitriding temperature and time is 550 0C and 4 hours, respectively. The white layer formed on the surface was indentified connected to their mechanical properties. The result showed that the hardness of materials is strongly affected by the stability or the homogeneity of the white layer in the surface. The homogeneity is strongly influenced by the chemical elements composition in materials. The highest hardness level, 975.5 HV occurs at the AISI P20 which shows the most homogeneous thickness surface due to Chrom composition of 2%. The next hardness level, 751.2 HV takes place in the AISI 4340 steel with 1.4 % Cr composition, and the lowest hardness, 720.8 HV occurs at the AISI 4140 with 1.07% Chrom.

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“…The high hardness of the SP-N-SP process occurs because nitrogen diffuses into the material based on an interstitial basis, and reacts to form compounds with nitride former elements that are dispersed evenly as nitride (Slima, 2012). Because the process were diffusion process, the hardness value will decrease as the distance from the surface increases.…”

mentioning

confidence: 99%

The Effect of Double Shot Peening and Nitriding on the Die Soldering Behaviour of H13 and Cr-Mo-V Tool Steel

Ariati¹,

Nurjaya²,

Rooscote

2016

IJTech

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In this study, H13 tool steel and Cr-Mo-V steel were treated by two different types of surface treatments, i.e. double shot peening with nitriding and single shot peening. Samples were dipped into the molten aluminum alloy ADC12 as a simulation of the die casting process and held there for 0.5, 5, and 30 minutes. Several characteristics were analyzed, including surface hardness, microstructure observation, and identification of elements on the intermetallic layer formed. The results of the research showed that H13 steel treated by double shot peening with nitriding had higher surface hardness (1402 VHN) than when treated by shot peening only (536 VHN). A similar tendency emerged with the Cr-Mo-V steel, which had 1402 VHN and 503 VHN after treatment with double shot peening with nitriding and the single shot peening process. In addition, with a dipping time of 30 minutes, the H13 steel treated by double shot peening with nitriding produced a lower average thickness of the compact intermetallic layer. Moreover, double shot peening did not form a broken intermetallic layer, while single shot peening formed one (91.66 µm). Likewise, the Cr-Mo-V steel treated by double shot peening with nitriding produced a thinner compact intermetallic layer than single shot peening, 22.2 µm vs. 27.77 µm, as well as a lower average thickness of the broken intermetallic layer, 40.2 µm vs. 113 µm. This indicates that material treated by double shot peening with nitriding could minimize the occurrence of die soldering.

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Ion and Gas Nitriding Applied to Steel Tool for Hot Work X38CrMoV5 Nitriding Type: Impact on the Wear Resistance

Cited by 13 publications

References 0 publications

Influence of Nitrocarburizing on Increasing the Service Life of Elastic Elements of Direct Flow Valves

Influence of Nitrocarburizing on Increasing the Service Life of Elastic Elements of Direct Flow Valves

The Effect of Chemical Compositions of Tool Steel on the Level of White Layers Homogeneity and the Surface Hardness

The Effect of Double Shot Peening and Nitriding on the Die Soldering Behaviour of H13 and Cr-Mo-V Tool Steel

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