Prototype Equipment and Techniques for Obtaining Сavitation-Resistant Coatings To Be Applied fo Working Surfaces of Steam Turbine Blades Made of VT6 Titanium Alloy in Order to Replace Imported Counterparts

Bilous, V. A.; Voyevodin, V.N.; Khoroshikh, V.M.; Nosov, G.I.; Marinin, V.G.; Leonov, S.A.; Овчаренко, В.Д.; Kovalenko, V.I.; Komar, A.A.; Куприн, А.С.; Shpagina, L.O.

doi:10.15407/scine12.04.027

Cited by 8 publications

(8 citation statements)

References 4 publications

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“…Coatings were deposited using a vacuum arc discharge on a Bulat-type installation [11]. The cathodes were made of VT1-0 titanium.…”

Section: Materials and Experimental Techniquementioning

confidence: 99%

“…In the literature, there is almost no data on the cavitation resistance of metal vacuum-arc titanium coatings without the addition of nitrogen, and the available data refer to coatings obtained from a plasma flow with separation of macroparticles [10]. Vacuum-arc plasma sources with separation from macroparticles cannot be or economically unreasonable to use for the deposition of protective coatings on large-sized products (for example, the blades of the last stages of steam turbines) [11].…”

Section: Introductionmentioning

confidence: 99%

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CAVITATION AND EROSION RESISTANCE OF VACUUM ARC Ti, Ti-Al, Ti-Zr, AND Ti-Ni COATINGS

Klymenko¹,

Marinin²,

Bortnitskaya³

et al. 2022

Problems of Atomic Science and Technology

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Studies on the influence of technological parameters (cathode-substrate distance, substrate temperature, bias voltage, arc current) of vacuum-arc titanium deposition coatings have shown that the deposition rate from one cathode is inversely proportional to the square of the distance between the sample and the cathode surface and proportional to the angle of inclination of the sample relative to the normal to the cathode surface. Sputtered titanium coatings at optimal parameters have 1.25 times higher cavitation resistance than bulk titanium. Among the alloyed vacuum-arc coatings TiAl, TiZr, and TiNi, coatings of the TiAl and TiNi systems have the highest resistance to cavitation and abrasive wear.

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“…Coatings were deposited using a vacuum arc discharge on a Bulat-type installation [11]. The cathodes were made of VT1-0 titanium.…”

Section: Materials and Experimental Techniquementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

CAVITATION AND EROSION RESISTANCE OF VACUUM ARC Ti, Ti-Al, Ti-Zr, AND Ti-Ni COATINGS

Klymenko¹,

Marinin²,

Bortnitskaya³

et al. 2022

Problems of Atomic Science and Technology

Self Cite

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show abstract

“…The vacuum-arc method of applying a titanium coating on the surface of the carbon fiber fabric in order to improve its electrical conductivity was studied. Electric arc methods of vacuum spraying of coatings made of titanium [20], titanium oxide and nitride [21], allow them to be applied to materials of various structures, including carbon fibrous materials, such as the carbon fabric SAUT-1S.…”

Section: Preparation Of Carbon Materialsmentioning

confidence: 99%

Designing capacitive deionization module for water treatment systems at car washers

Kudin

Taran

Bazhynov

et al. 2021

EEJET

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It is impossible to effectively use water with a high salt content at car washes. In many places, access to water with a high salt content is almost unlimited but its utilization requires deionization. For this purpose, several methods are used, the main of which are reverse osmosis, electrodialysis, ion exchange methods, and distillation. However, they have significant drawbacks. Recently, the technology of capacitive deionization of water has been widely used, based on the removal of salt ions from the solution during the charge/discharge of "double" electric layers of carbon materials with a significant active surface (800‒2,000 m2/g). Theoretically, this process should be more energy efficient by using a low potential voltage (1–2 V). This paper considers the interrelation of physical parameters that affect the process of capacitive deionization of water. The dependences of voltage drop on serial internal resistance on different concentrations of sodium chloride and the distance between electrodes for electrodes based on the material SAUT-1S (Belarus) have been investigated. It is shown that the main contribution to the sequential internal resistance is introduced by the resistance of the electrolyte. As the distance between the electrodes increases, the voltage drop on the serial internal resistance increases linearly. A decrease in the concentration of ions leads to a decrease in the conductivity of the solution, which causes an increase in energy consumption and a decrease in the efficiency of sorption. It has been demonstrated that the voltage drop at the serial internal resistance when the voltage on the electrodes is limited, which is set in order to avoid the transition of the electrode charging mode to the electrolysis of water, causes a significant drop in the efficiency of the capacitive deionization process

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“…Also, for comparison, Fig. 8 shows the wear of the substrate without coating and with a TiN coating, which is widely used for hardening and protecting the surface of titanium alloys [25]. It is seen that the cathode has an extremely low cavitation resistance.…”

Section: -5mentioning

confidence: 99%

Structure and Mechanical Characteristics of Ti2AlC MAX Phase Cathodes and Deposited Ion-Plasma Coatings

Bortnitskaya¹,

Reshetnyak²,

Куприн³

et al. 2021

J. Nano- Electron. Phys.

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Prototype Equipment and Techniques for Obtaining Сavitation-Resistant Coatings To Be Applied fo Working Surfaces of Steam Turbine Blades Made of VT6 Titanium Alloy in Order to Replace Imported Counterparts

Cited by 8 publications

References 4 publications

CAVITATION AND EROSION RESISTANCE OF VACUUM ARC Ti, Ti-Al, Ti-Zr, AND Ti-Ni COATINGS

CAVITATION AND EROSION RESISTANCE OF VACUUM ARC Ti, Ti-Al, Ti-Zr, AND Ti-Ni COATINGS

Designing capacitive deionization module for water treatment systems at car washers

Structure and Mechanical Characteristics of Ti2AlC MAX Phase Cathodes and Deposited Ion-Plasma Coatings

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