Characteristic Features of the Surface Relief Formation of Metals Modified by Compression Plasma Flows

Kudaktsin, R.S.; Astashynski, V. M.; Kuzmitski, A. M.

doi:10.1615/hightempmatproc.2019031163

Cited by 2 publications

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“…However the surface relief also influences tribological characteristics (Kombalov, 1974;Grzesik W., 2016). The impact of the CPF causes the growth of surface roughness and waviness (Kudaktsin at. al, 2019).…”

Section: Resultsmentioning

confidence: 99%

THE FORMATION OF SURFACE Ti-Al-V-Cu ALLOY BY COMBINED ION-PLASMA TREATMENT

et al. 2022

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In this work surface Ti-Cu-Al-V alloy was synthesized by compression plasma flows impact on Ti-6Al-4V titanium alloy preliminary coated by copper. The treatment of Cu/ Ti-6Al-4V samples was carried out by three pulses of compression plasma flows generated in the nitrogen atmosphere (energy density absorbed by the surface was varied in the range of 26 -43 J/cm 2 per pulse). The phase and elemental composition, structure, microhardness and friction coefficient of the formed surface alloy were investigated. It has been established that plasma treatment resulted in the formation of α-Ti solid solution containing alloying elements in the surface layer and δ-TiN on the surface. Increase of the energy absorbed by the surface during plasma impact led to decrease of Cu concentration (2.7-0.5 at.%) in the analyzed layer. The surface alloy was characterized by a uniform distribution of Ti, Al, and V atoms in contrast to the distribution of these elements on the surface of the untreated Ti-6Al-4V alloy. The microhardness increase up to 4.7 GPa (1.3 times higher in comparison with initial Ti-6Al-4V alloy) was found after compression plasma flows treatment at 43 J/cm 2 . Tribological tests showed that the minimal friction coefficient (0.13) was observed after treatment at the absorbed energy density of 26 J/cm 2 .

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Section: Resultsmentioning

confidence: 99%

THE FORMATION OF SURFACE Ti-Al-V-Cu ALLOY BY COMBINED ION-PLASMA TREATMENT

et al. 2022

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Numerical Simulation of Light Erosion Plasma Dynamic MPC Discharges

Batrak

Kopaleishvili

2023

High Temp Mat Proc

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In this work, a physico-mathematical model of a magnetoplasma compressor (MPC) was studied. The electro-technical characteristics and power modes of the MPC discharges in gases were considered. The radiation-plasma dynamic structures and spectral-brightness characteristics of the MPC discharges are given. Three different types of quasi-stationary spatial distributions of the plasma parameters were calculated for different heating modes (ohmic, transient, and plasma dynamic). The generation and behavior of a plasma jet created based on the plasma dynamic discharge of the MPC was studied.

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Characteristic Features of the Surface Relief Formation of Metals Modified by Compression Plasma Flows

Cited by 2 publications

References 0 publications

THE FORMATION OF SURFACE Ti-Al-V-Cu ALLOY BY COMBINED ION-PLASMA TREATMENT

THE FORMATION OF SURFACE Ti-Al-V-Cu ALLOY BY COMBINED ION-PLASMA TREATMENT

Numerical Simulation of Light Erosion Plasma Dynamic MPC Discharges

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