Effect of Plasma Gases on the Structure and Properties of WC-CrC-Ni Coatings

Richert, M.; Nejman, Ilona; Poręba, M.; Sieniawski, Jan; Kuczek, Łukasz

doi:10.4028/www.scientific.net/kem.641.105

Cited by 5 publications

(4 citation statements)

References 6 publications

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“…The type of charge powder can also influence the coating properties, including the coating compactability. It was found that nanometric charge powder contributes to the lowest porosity of coatings [6]. The evaluation of wettability by liquid copper (Fig.…”

Section: Resultsmentioning

confidence: 95%

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Selection of Protective Coatings Obtained by Plasma Spraying Method for Foundry Industry

Richert¹,

Leszczyńska-Madej²,

Nejman³

et al. 2016

KEM

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The paper presents the results of studies of protective coatings for graphite moulds, which were used in copper casting process. The following coatings were involved: Mo, NiAl, NiCrAl, Cr3C2-NiCr, WC-CrC-Ni. All tested coatings were applied on the graphite substrate by plasma spraying method. The microstructure was investigated by optical microscopy (OM) and scanning electron microscopy (SEM). The microhardness of coatings was measured by Vickers method. The wettability of coatings by liquid copper was evaluated. It was found that NiAl and NiCrAl coatings had the highest limiting wetting angle and consequently the lowest wettability among all the examined coatings. It was also found that chemical composition strongly influenced the coating properties.

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Section: Resultsmentioning

confidence: 95%

“…Future studies will focus on the increase of thermal conductivity by the decrease of porosity, proper selection of process parameters, chemical composition of coatings and type of charge powder. The nanometric microstructure of coatings can also contribute to an improvement of this feature [6].…”

Section: Discussionmentioning

confidence: 99%

Selection of Protective Coatings Obtained by Plasma Spraying Method for Foundry Industry

Richert¹,

Leszczyńska-Madej²,

Nejman³

et al. 2016

KEM

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show abstract

“…The corrosion resistance of this type of coating was investigated by Murariu et al [25]. Richert et al analysed the influence of LPPS plasma spraying parameters on the microstructure of WC-CrC-Ni coating [26]. The mechanical properties of HVOF--sprayed coatings were investigated by Jonda and Latka [27].…”

Section: Introductionmentioning

confidence: 99%

"Effect of plasma spraying parameters on microstructure and thickness and porosity of WC-CrC-Ni coatings deposited on titanium "

Szymkiewicz¹,

Góral²,

Kubaszek³

et al. 2023

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Thermal spraying allows forming of protective coatings with high wear and corrosion resistance, which are successfully applied in the aviation industry on an aircraft engine. In the presented paper, the WC-CrC-Ni carbide coatings on titanium substrate with the use of an Atmospheric Plasma Spraying (APS) process were formed. The aim of this work was to determine optimal APS plasma spraying parameters, which will allow producing the relatively thick coating with as low as possible porosity. The microstructure of obtained carbide coatings was observed with the help of the optical microscope (OM) and scanning electron microscope (SEM). Moreover, the phase composition of produced coatings using X-ray diffraction (XRD) was determined. The obtained results of investigations revealed that the appropriate selection of process parameters (powder feed rate, power current, and plasma gases H2/Ar flow ratio) allows producing the relatively thick coatings, which are characterized by low porosity.

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“…The plasma sprayed coatings are characterized by higher porosity and lower hardness [8][9]. The investigations showed that the thermal process parameters significantly influenced the coating properties, such as: distance to the substrate, velocity of particles in plasma stream, size of the sprayed powder particles, residence time of the powder in the air and used gases [10][11][12]. From this point of view, the proper selection of process parameters is very important to obtain the coatings with the defined properties and structure.…”

Section: Introductionmentioning

confidence: 99%

Effect of the Addition of Glassy Carbon on the Structure and Properties of ZrO2-Y2O2 Coatings

Richert¹,

Nejman²,

Leszczyńska-Madej³

et al. 2016

KEM

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The effect of the addition of glassy carbon on the structure and properties of ZrO2-Y2O2 coatings deposited at the graphite substrate has been investigated. The coatings were deposited by plasma spraying method in an industrial company Plasma System SA Silesian Siemianowice using MIM40 equipment. The microstructure of coatings was investigated by light microscopy (MO), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Abrasion was carried out with the use of tribological tester Ducom by pin-on-disc method. The results of investigations showed that the addition of the glassy carbon into coatings materials has increased microhardness and resistance against the wear.

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Effect of Plasma Gases on the Structure and Properties of WC-CrC-Ni Coatings

Cited by 5 publications

References 6 publications

Selection of Protective Coatings Obtained by Plasma Spraying Method for Foundry Industry

Selection of Protective Coatings Obtained by Plasma Spraying Method for Foundry Industry

"Effect of plasma spraying parameters on microstructure and thickness and porosity of WC-CrC-Ni coatings deposited on titanium "

Effect of the Addition of Glassy Carbon on the Structure and Properties of ZrO<sub>2</sub>-Y<sub>2</sub>O<sub>2</sub> Coatings

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