Эрозионная и абразивная стойкость, механические свойства и структура покрытий TiN, Ti–Cr–Al–N и Cr–Al–Ti–N, полученных методом CFUBMS

Кирюханцев-Корнеев, Ф. В.; Phiri, Josphat; Гладков, В. И.; Яковлев, М. Г.; Левашов, Е. А.

doi:10.1134/s0044185619050127

Cited by 2 publications

(1 citation statement)

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“…Актуальность этой проблемы много лет мотивирует ученых США [27][28][29]. Исследования проводятся в Германии [30; 31], Японии [32-34], Китае [35; 36], а также в нашей стране [37; 38].…”

Section: обзор литературыunclassified

Effect of Chromium Addition and Regimes during Electrospark Alloying with Aluminum Matrix Anode Material of Steel 45

Николенко

Konevtsov

Гордиенко

et al. 2021

Engineering Technologies and Systems

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Introduction. Electrospark alloying is used to produce hardening coatings. Anodic materials with unique properties include metal matrix composites based on aluminum. The aim of the work is to develop new aluminum matrix anode composite materials with high efficiency indicators during electrospark alloying of carbon steel 45. Materials and Methods. Structural carbon steel 45 was used as the substrate (cathode). Aluminum matrix materials are chosen as the anode materials. The value of the cathode weight increment and the anode erosion were determined by the gravimetric method on the Shinko Denshi HTR-220 CE electronic scale with an accuracy of ±∙10–4 g. To study the microstructure and metallography of the surface of the anode materials, the microscopes EVO-50 XVP and Altami MET 3 APO from S. ZEISS were used. The device CALOTEST CSM Instruments was used to study coatings for microabrasive wear. Results. There is developed a methodological scheme for achieving the efficiency of the electric spark alloying parameters and the properties of the doped layer depending on the composition of the anodic metal matrix composite material based on aluminum with the addition of chromium and processing modes. The mode of Institute of Materials Science electrospark installation with pulse energy of 14.4 J was set for anode material application during electrospark alloying. It is established that after electric spark alloying of steel 45, the hardness and wear resistance of the surface increase by 2-3 times, and the heat resistance ‒ by 5–18 times. Discussion and Conclusion. The series of increasing the cathode mass, the erosion resistance of the electrode materials, mass transfer coefficient, heat resistance, hardness and wear resistance of the alloyed layer are obtained. The obtained series are a convenient tool for achieving various efficiency parameters in electric spark alloying depending on the selected anode material and processing modes.

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Section: обзор литературыunclassified

Effect of Chromium Addition and Regimes during Electrospark Alloying with Aluminum Matrix Anode Material of Steel 45

Николенко

Konevtsov

Гордиенко

et al. 2021

Engineering Technologies and Systems

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Comparative study of coatings obtained by ESD method using TiC–NiCr and TiC–NiCr–Eu2O3 electrodes

Kiryukhantsev‐Korneev

Сытченко

Левашов

2019

Izv.VUZ. Tsvet. Met.

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The study covers coatings obtained on 40Kh steel substrates by electro-spark deposition (ESD) using TiC–NiCr and TiC–NiCr– Eu2O3 electrodes. Coatings were deposited by the Alier-Metal 303 unit in argon environment under the normal pressure using direct and opposite polarity. The structure, elemental and phase composition of electrodes and coatings were studied using X-ray phase analysis, scanning electron microscopy, energy dispersive spectroscopy, glow discharge optical emission spectroscopy, and optical profilometry. Mechanical and tribological properties of coatings were determined by nanoindentation and testing according to the «pin-disk» scheme including high-temperature conditions in the range of 20–500 °C. The tests conducted include abrasive wear tests using the Calowear tester, impact resistance tests using the CemeCon impact tester, and tests for gas and electrochemical corrosion resistance. Test results showed that electrodes contain titanium carbide, nickel-chromium solid solution, and europium oxide in case of a doped sample. Coatings exhibit the same phase composition but solid solution is formed on the iron base. Coatings with the Eu2O3 additive do not differ significantly in structural characteristics, hardness, friction coefficient, and exceed the base coatings in terms of their abrasive resistance, repeated impact resistance, heat and corrosion resistance. There was an increase in impact resistance by 1.2–2.0 times, a decrease in corrosion current by more than 20 times, and an oxidation index by almost 2 times during the transition to doped coatings.

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Эрозионная и абразивная стойкость, механические свойства и структура покрытий TiN, Ti–Cr–Al–N и Cr–Al–Ti–N, полученных методом CFUBMS

Cited by 2 publications

References 0 publications

Effect of Chromium Addition and Regimes during Electrospark Alloying with Aluminum Matrix Anode Material of Steel 45

Effect of Chromium Addition and Regimes during Electrospark Alloying with Aluminum Matrix Anode Material of Steel 45

Comparative study of coatings obtained by ESD method using TiC–NiCr and TiC–NiCr–Eu2O3 electrodes

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