Electro Spark Deposition of Tib2 Layers on Ti6al4v Alloy

Kováčik, Jaroslav; Baksa, Peter; Emmer, Štefan

doi:10.12776/ams.v22i1.628

Cited by 22 publications

(13 citation statements)

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“…Of these methods, the lightest, cheapest, most affordable and most versatile is electrical spark deposition (ESD). The method has a number of advantages over the above methods [11][12][13][14][15][16][17], the main of which are: its simplicity, low cost of equipment, its easy technology, the insignificant heating of the layered products, absence of thermal deformations, low energy consumption and ease of RESEARCH implementation of the technological operations, the possibility of hardening surfaces of complex shapes. The main disadvantages of this method is a small thickness, relatively higher roughness and unevenness of the applied coatings, and lower productivity.…”

Section: Introductionmentioning

confidence: 99%

Abrasive Wear Resistance of Electrospark Coatings on Titanium Alloys

Kandeva¹,

Kostadinov²,

Penyashki³

et al. 2022

Tribol. Ind.

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According to most researchers, improving the tribological characteristics of titanium alloys at this stage is most appropriate through surface modification tribotechnologies. In the present work, the qualitative characteristics of coatings of tungsten-free hard alloy materials materials based on TiC, TiN TiCN TiB2, applied on the most popular titanium alloy Ti6Al4V by electrospark deposition with low pulse energy are investigated. The influence of the electrode materials, the process parameters, the characteristics of the coatings and the roughness parameters on their wear and abrasion resistance has been studied. It was found that the use of coatings from the studied electrodes shows an increase in abrasion resistance by 1.5 -up to 3 times compared to that of the substrate and the electrode materials and process parameters were determined, in which maximum wear resistance was obtained.

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Section: Introductionmentioning

confidence: 99%

Abrasive Wear Resistance of Electrospark Coatings on Titanium Alloys

Kandeva¹,

Kostadinov²,

Penyashki³

et al. 2022

Tribol. Ind.

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“…of Ti6Al4V substrate with TiB 2 by ESD method and EDX microanalysis showed that coating hardness increased due to the formation of precipitated alumina, TiB 2 , and other more complex phases during the ESD process [2] . The TiC-TiB 2 composite coating electrode was used for coating with electro spark deposition method on the surface of 40Cr steel, and the results showed that the main phases of the composite coating were TiB 2 , TiC and For example, while the wear mechanism of 40Cr steel is mainly related to micro shear, the wear mechanism of composite coating emerges as a mixture of micro shear, scratch and fatigue wear [4,6] .…”

Section: Kovacik Et Al Was Successfully Completed Coatingmentioning

confidence: 99%

“…Engineers need coatings to be more resistant to heat, abrasion and corrosion than the working area. To meet these conditions, the chemical and physical properties of the desired conditions on the surface of the material are provided through various technological processes [1][2][3] .…”

Section: Introductionmentioning

confidence: 99%

The Ceramic Composite Coating (TiC+TiB2) by ESD on Ti6AL4V Alloy and Its Characterization

Gökçe

Kayalı

Talaş

2020

CSE

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Titanium based alloys or materials used for mechanical and constructional purposes can exhibit high corrosion and abrasion resistance with coatings made on their surfaces. In this study, the surface of Ti6Al4V plate substrate was coated with TiC+TiB2 composite electrodes at different volts and frequencies by Electro-Spark Deposition (ESD) method. The ESD method is a micro arc welding method that allows deposits of alloys and ceramics compounds that have electrical conductivity on the surface of metallic materials, with the plasma that brings about a better melting of base metal and electrode for producing good adhesion between the coating and base metal. In this study, the Ti6Al4V samples were coated with TiC+TiB2 electrodes, and the precoating, post-coating hardnesses, wear rates and coating layer thicknesses of the samples were examined. TiC + TiB2 composite coating on the surface of Ti6Al4V alloys by ESD method was achieved and the hardness increase was observed with the help of numerous hard ceramic phases.

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“…A significant advantage is that due to the diffusion of electrode material into the substrate and vice versa relatively good bonding between the layer and the substrate occurs. ESD method enables to use titanium and titanium alloys (thanks to increase of their surface hardness and wear resistance) as sonotrode cutting tools [10] and also for biomedical applications in tooth impacts [11]. In this paper, the wear properties of TiB 2 and TiB 2 -Ti composites with 15 and 20 % Ti, under various applied loads are presented.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and tribological properties of TiB2-Ti composites prepared by spark plasma sintering

Puchý¹,

Kováčik²,

Kovalčíková³

et al. 2020

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The TiB2-Ti composites with different concentrations of the Ti metallic second phase were prepared by the spark plasma sintering. We investigated the tribological properties of TiB2 and TiB2-Ti materials by ball-on-disc technique on the HTT CSM tribometer under loads of 1, 5, and 10 N. The wear tracks morphology was investigated by scanning electron and confocal microscopy. The microstructures of the TiB2 + Ti materials consist of a small-grained matrix with relatively well dispersed TiB2 particulate grains. The wear test results show that the wear rate of composites is gradually reduced over the sliding speed range for all normal loads. The composite wear rates are lower than the monolith ones. The Ti phase played a dual role in improving the tribological properties of the TiB2-Ti composites by acting as a lubricant and in increasing the fracture toughness by influencing the microstructure and mechanical properties. K e y w o r d s: TiB2-Ti composites, spark plasma sintering, coefficient of friction, wear

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Electro Spark Deposition of Tib2 Layers on Ti6al4v Alloy

Cited by 22 publications

References 0 publications

Abrasive Wear Resistance of Electrospark Coatings on Titanium Alloys

Abrasive Wear Resistance of Electrospark Coatings on Titanium Alloys

The Ceramic Composite Coating (TiC+TiB2) by ESD on Ti6AL4V Alloy and Its Characterization

Mechanical and tribological properties of TiB2-Ti composites prepared by spark plasma sintering

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