Formation of composite coatings based on titanium carbide via electrospark alloying

Пантелеенко, Ф. И.; Sarantsev, V. V.; Столин, А. М.; Бажин, П. М.; Azarenko, E. L.

doi:10.3103/s1068375511040107

Cited by 17 publications

(4 citation statements)

References 1 publication

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“…For marine environments, anticorrosion, seawater erosion resistance and good mechanical properties are the most important characteristics of marine equipment materials. Titanium, titanium alloys and titanium-based cemented carbide have low density, high strength and excellent seawater corrosion resistance [4][5][6], but the high cost limits their application. By depositing titanium and titanium alloy coatings on iron and steel materials through advanced surface treatment technology to replace titanium and titanium alloy materials, one can significantly reduce the application costs and achieve the corrosion resistance effect of titanium alloy.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Cold Sprayed Titanium TA2 Coating by Irregular Powder and Evaluation of Its Corrosion Resistance

Li,

Wang,

et al. 2023

Coatings

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Titanium coating on a steel substrate by surface technology can improve the corrosion resistance of steel. In this paper, the titanium TA2 coating was deposited on X80 steel by cold spraying equipment with a low-cost irregular powder. The effects of the carrier gas temperature on the microstructure, microhardness, wear resistance, adhesion and corrosion resistance of titanium coatings, especially in a deep sea environment, were studied by methods of porosity analysis, thermal field emission scanning analysis, energy spectrum analysis, Vickers hardness tests, bonding strength tests, friction and wear tests and electrochemical tests. The results showed that as the carrier gas temperature increased from 300 °C to 900 °C, the porosity of the coating decreased to 0.93%, and the hardness and bonding strength of the coating increased to 247 HV0.5 and 46.7 MPa, respectively. With the increase in hydrostatic pressure from 0.1 MPa to 40 MPa, the dimensional blunt current density of the titanium coating with 0.93% porosity was still in the order of 10−7 A·cm−2 with the cast titanium TA2.

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Section: Introductionmentioning

confidence: 99%

Preparation of Cold Sprayed Titanium TA2 Coating by Irregular Powder and Evaluation of Its Corrosion Resistance

Li,

Wang,

et al. 2023

Coatings

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“…The efficiency of the ESA method in the deposition of protective coatings is based on the use of high-quality electrode materials [30,31]. These coatings are promising for application to metal-cutting tools made of the high-speed steel R6M5, an analog of HSS steel.…”

Section: Introductionmentioning

confidence: 99%

Coatings Prepared by Electro-Spark Alloying with SHS Electrode Materials Based on Ti-B-Fe-AlN

et al. 2023

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In this work, the features of the phase composition, structures, and properties of coatings obtained on a high-speed steel substrate (steel R6M5) were studied. The coatings were prepared using the ESA method (electro-spark alloying). Electrode materials prepared through self-propagating high-temperature synthesis (SHS) based on (Ti-B-Fe)xAlN with the addition of nanosized AlN particles in the amount of x = 0.5, 10, 15 wt % were used as electrodes. The structure, phase composition, and physical and mechanical properties of the SHS electrode materials are reported. It was found that the coatings inherited the structure of the SHS electrode material and formed two characteristic zones for x = 0 and three zones for x = 5, 10, 15. The surface hardness of the substrate made of the high-speed steel R6M5 with the developed coatings was found to increase up to five times compared to the uncoated substrate. It was found that the wear resistance of the samples with the coating was four to six times higher than that of uncoated samples.

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“…The application of TiC-Ni electrodes is quite widespread in ESA technology [28][29][30]. TiC grains, which are forming during the treatment of steel by such electrodes in the near-surface layer, provide high hardness and wear resistance, and the solid solution of nickel in iron increases the strength and corrosion resistance of the substrate [31].…”

Section: Introductionmentioning

confidence: 99%

Two-Layer Nanocomposite TiC-Based Coatings Produced by a Combination of Pulsed Cathodic Arc Evaporation and Vacuum Electro-Spark Alloying

Kiryukhantsev-Korneev

Сытченко

Sheveyko

et al. 2020

Materials

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A novel two-stage technology combining vacuum electro-spark alloying (VESA) and pulsed cathodic arc evaporation (PCAE) was approbated for the deposition of TiC-based coatings in inert (Ar) and reactive (C2H4) atmospheres. The deposition was carried out using a TiC-NiCr-Eu2O3 electrode and 5140 steel substrates. Structural, elemental, and phase compositions of the deposited coatings were investigated by scanning electron microscopy, energy-dispersive spectrometry, and X-ray diffraction. The mechanical properties of the coatings were measured by nanoindentation using a 4 mN load. The tribological properties of the coatings were measured using the pin-on-disc setup in air and in distilled water at a 5 N load. The experimental data suggest that VESA coatings are characterized by surface defects, a hardness of 12.2 GPa, and a friction coefficient of 0.4. To ensure good adhesion between the VESA coating and the upper layer containing diamond-like carbon (DLC), an intermediate layer was deposited by PCAE in the Ar atmosphere. The intermediate layer had a hardness of up to 31 GPa. The upper layer of the coating ensured a low and stable friction coefficient of 0.2 and high wear resistance due to the formation of an sp2–sp3 bound carbon phase. Multilayer TiC-based coating with the upper DLC layer, in addition to high tribological properties, was characterized by the lowest corrosion current density (12 μA/cm2).

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Formation of composite coatings based on titanium carbide via electrospark alloying

Cited by 17 publications

References 1 publication

Preparation of Cold Sprayed Titanium TA2 Coating by Irregular Powder and Evaluation of Its Corrosion Resistance

Preparation of Cold Sprayed Titanium TA2 Coating by Irregular Powder and Evaluation of Its Corrosion Resistance

Coatings Prepared by Electro-Spark Alloying with SHS Electrode Materials Based on Ti-B-Fe-AlN

Two-Layer Nanocomposite TiC-Based Coatings Produced by a Combination of Pulsed Cathodic Arc Evaporation and Vacuum Electro-Spark Alloying

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