Structural Steel Microhardness Improvement by Ion Nitriding

Долгов, Н. А.; Rutkovskyi, A. V.

doi:10.1007/s11223-022-00458-4

Cited by 4 publications

(2 citation statements)

References 17 publications

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“…Diffusion penetration of activated nitrogen during ion plasma nitriding takes place deep into the surface of the steel heated to the optimum temperature [4]. Nitrogen activation can be performed in the working volume of an arc enhanced glow discharge (AEGD) [5].…”

Section: Introductionmentioning

confidence: 99%

INFLUENCE OF THE METAL UNDERLAYER ON THE CAVITATION RESISTANCE OF NITRIDED STEEL WITH Mo2N COATING

Zadneprovskiy,

Belous,

Domnich

et al. 2024

Problems of Atomic Science and Technology

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A complex modification of 25CrMoV steel has been carried out, which includes nitriding in arc-enhanced glow discharge plasma, deposition of metallic sublayer (Mo, Cr or Ti) and deposition of top layer of Mo2N coating. The structure studies showed that depending on the material and the thickness of the sublayer (1.5...6 µm), defects and delaminations could form at the interfaces, while no defects were observed in the absence of the metallic sublayer. The concentration of nitrogen in the complex modified layers depends on the composition of the metallic sublayer, but does not affect the total depth of nitriding of the hardened steel ~ 160 µm. The hardness of the nitrided layer is ~ 12 GPa, and the hardness of the Mo2N coating is ~ 30 GPa. The cavitation resistance of complex-modified 25CrMoV steel without the metal sublayer is 2 times higher than the initial steel.

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Section: Introductionmentioning

confidence: 99%

INFLUENCE OF THE METAL UNDERLAYER ON THE CAVITATION RESISTANCE OF NITRIDED STEEL WITH Mo2N COATING

Zadneprovskiy,

Belous,

Domnich

et al. 2024

Problems of Atomic Science and Technology

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“…23 The surface microhardness parameter is also important during nitriding, and researchers have experimentally studied the effect of diffusion saturation parameters on steel microhardness. 24 Local distortions in the enrichment of surface layers with nitrogen and the effect on structural stability and magnetic properties play an important role in understanding the properties of surfaces. In particular, DFT-based calculations helped to study the effect of nitriding on the change in the magnetic moment and understand the local distortions caused by the contents of N and Fe in the FeAl alloy.…”

Section: Introductionmentioning

confidence: 99%