Comprehensive surface treatment of high-speed steel tool

Fedorov, S. Yu.; Aleshin, Sergey V.; Swe, Min Htet; Abdirova, Raushan D.; Kapitanov, Alexey; Egorov, Sergey

doi:10.1051/meca/2017066

Cited by 12 publications

(7 citation statements)

References 39 publications

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“…The experimental results demonstrated the feasibility of creating wear-resistant near-surface layers by electron-beam technology using a source of wide-aperture low-energy high-current electron beam (LEHCEB) [1]. Such layers were obtained by initiating exothermic chemical reactions between the substrate material and the film deposited on it with the formation of new phase components [2][3][4].…”

Section: Introductionmentioning

confidence: 93%

Control of the surface electron-beam alloying process by vibration monitoring

Fedorov¹,

Kozochkin²,

Stebulyanin³

2018

Mechanics & Industry

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The experimental results prove the ability to realize technology of chemical heat treatment of some materials by surface alloying using a wide-aperture low-energy high-current electron beam. Doped hardened layers were produced due to initiating exothermic chemical reactions between the base and the thin film covered on it. Nevertheless, it is quite difficult to control the process of surface electron-beam alloying due to the significant variation in the parameters of the microsecond electron beam pulse and the instability of its interaction with the processed material. It leads to significant random changes that occur spontaneously, regardless of the control system. In this situation, it is proposed to use the method based on monitoring of oscillations and acoustic emission, which has long proved to be an effective tool in the study of phase transformations and plastic deformation. The appearance of a process with high vibroacoustic activity under irradiation of plates made of pre-nitrated steel 08Cr17Ti with a deposited film Nb70Hf22Ti8 in the range of 11–22 kHz 10 ms after the electronic pulse was experimentally shown on this background. The source of this vibroacoustic signal is a change in the microstructure of the alloy, including the appearance of a martensitic component in the near-surface layer of the sample caused by the formation of nitride based on niobium. Tracking changes in the effective value of the vibroacoustic signal allow choosing the rational modes of irradiation with electron-beam surface alloying, involving the supply of maximum power, limited by the possibility of evaporation of the film with alloying components.

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Section: Introductionmentioning

confidence: 93%

Control of the surface electron-beam alloying process by vibration monitoring

Fedorov¹,

Kozochkin²,

Stebulyanin³

2018

Mechanics & Industry

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“…In the γ 1 case, Equation ( 7) is transformed into (18) with the left side of Boundary Condition (19):…”

Section: Heating With a Surface Heat Sourcementioning

confidence: 99%

“…In this paper, the main focus is on those PEB sources that are among the most promising for industrial applications (in the author's opinion). In particular, the 'RITM' PEB source is considered, which was developed at the Institute of High Current Electronics of the Siberian Branch of the Russian Academy of Sciences [9][10][11][12][13][14][15][16][17][18][19][20][21][22]. Back in the early 2000s, the license for its industrial production was sold to the Japanese 'SODICK' company, which produced the 'PIKA PF32A Finish Machine' industrial analogue.…”

Section: Introductionmentioning

confidence: 99%

Melting Thresholds of Materials Irradiated with a Wide Class of Pulsed Electron Beams

Markov

2023

Coatings

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Based on the proposed criterion of the type of heating, a classification of the sources of pulsed electron beams was carried out, both to obtain a better understanding of the nature of the thermal processes occurring under irradiation and to predict their suitability for certain applications. The melting thresholds of materials were calculated over a wide ranges of accelerating voltages and pulse durations. On the basis of calculations, a refractoriness series was proposed for metals for surface–volume pulsed heating.

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“…In the case of cyclic loads that occur during the operation of products, the probability of sudden microfracture is even higher [13][14][15][16]. The listed features are due to some factors-the structural heterogeneity of ceramics inherent in their nature, defects of a technological nature present in the volumetric structure and surface layer, which are inevitably formed during the sintering of powder compositions and subsequent diamond grinding of ceramic workpieces [17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Technological Principles of Complex Plasma-Beam Surface Treatment of Al2O3/TiC and SiAlON Ceramics

Grigoriev,

Volosova,

Lyakhovetsky

et al. 2023

JMMP

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Thermomechanical action during high-performance diamond grinding of sintered cutting Al2O3/TiC and SiAlON ceramics leads to increased defectiveness of the surface layer of the deposited TiZrN and CrAlSiN/DLC coatings. It predetermines the discontinuous and porous coatings and reduces its effectiveness under abrasive exposure and fretting wear. The developed technological approach is based on “dry” etching with beams of accelerated argon atoms with an energy of 5 keV for high-performance removal of defects. It ensures the removal of the defective layer on ceramics and reduces the index of defectiveness (the product of defects’ density per unit surface area) by several orders of magnitude, compared with diamond grinding. There are no pronounced discontinuities and pores in the microstructure of coatings. Under mechanical loads, the coatings ensure a stable boundary anti-friction film between the ceramics and counter body that significantly increases the wear resistance of samples. The treatment reduces the volumetric wear under 20 min of abrasive action by 2 and 6 times for TiZrN and CrAlSiN/DLC coatings for Al2O3/TiC and by 5 and 23 times for SiAlON. The volumetric wear under fretting wear at 105 friction cycles is reduced by 2–3 times for both coatings for Al2O3/TiC and by 3–4 times for SiAlON.

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Comprehensive surface treatment of high-speed steel tool

Cited by 12 publications

References 39 publications

Control of the surface electron-beam alloying process by vibration monitoring

Control of the surface electron-beam alloying process by vibration monitoring

Melting Thresholds of Materials Irradiated with a Wide Class of Pulsed Electron Beams

Technological Principles of Complex Plasma-Beam Surface Treatment of Al2O3/TiC and SiAlON Ceramics

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