Nanocomposite protective coatings based on Ti–N–Cr/Ni–Cr–B–Si–Fe, their structure and properties

Pogrebnjak, A.D.; Danilionok, Mariya M.; Углов, В.В.; Ердыбаева, Н.К.; Кірік, Г. В.; Дуб, С. Н.; Rusakov, V. S.; Shypylenko, A.P.; Zukovski, P.V.; Tuleushev, Yu. Zh.

doi:10.1016/j.vacuum.2009.01.071

Cited by 56 publications

(34 citation statements)

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“…There are many techniques of coatings deposition stating from the self-fluxing alloys, for example CVD and DVD [1], different kind of welding (laser cladding [15,16], vacuum-arc deposition [17]) and thermal spraying (plasma spraying [6,10,18], flame spraying [1,6,7], high velocity oxy-fuel spraying [8,9]). The technology of plasma spraying is widely used [6,10,[18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

“…The technology of plasma spraying is widely used [6,10,[18][19][20][21][22][23]. It allows to form coatings of any materials including composite coatings on surface of any complexity as well as restore the worn out machine parts surfaces.…”

Section: Introductionmentioning

confidence: 99%

“…It allows to form coatings of any materials including composite coatings on surface of any complexity as well as restore the worn out machine parts surfaces. Unfortunately the disadvantages of plasma coatings are high porosity (up to 20 %) [7] and low adhesion [4,5,7,18]. It may limit their use in corrosive mediums [4,5,8] and decrease their wear-resistance.…”

Section: Introductionmentioning

confidence: 99%

“…It may limit their use in corrosive mediums [4,5,8] and decrease their wear-resistance. The solution to of this problem is subsequent melting of self-fluxing coatings [2,5,7,18]. SPS is perspective technique of high-pressure sintering.…”

Section: Introductionmentioning

confidence: 99%

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Structural features of Ni-Cr-Si-B materials obtained by different technologies

Kornienko

Никулина

Belousova

et al. 2016

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. This study considers the structural features of Ni-Cr-Si-B (Ni -base; 15.1 % Сr; 2 % Si; 2 % В; 0.4 % С) materials obtained by different methods. The self-fluxing coatings were deposited by plasma spraying on the tubes from low carbon steel. Bulk cylinder specimens of 20 mm diameter and 15 mm height were obtained by spark plasma sintering (SPS). The structure and phase composition of these materials were investigated by optical microscopy (OM), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffractometry (XRD). The major phases of coatings and sintered materials are γ-Ni, Ni3B, CrB and Сr7С3. We demonstrate that the particle unmelted in the process of plasma spraying or SPS consist of γ-Ni-Ni3B eutectic and also CrB and Сr7С3 inclusions. The prolonged exposure of powder to high temperatures as well as slow cooling rates by SPS provide for the growth of the structural components as compared to those of plasma coatings materials. High cooling rates at the plasma spraying by melted particles contribute to the formation of supersaturated solid solution of Cr, Si and Fe in γ-Ni. The structure of the melted particles in sintering material has gradient composition: the core constituted of Ni grains of 10 μm with γ-Ni-Ni3B eutectic on the edges. The results of the experiment demonstrate that the sintering material has a smaller microhardness in comparison with plasma coatings (650 and 850 MPa, respectively), but at the same time the material has higher density (porosity less than 1 %) than plasma coatings (porosity about 2…3 %).

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Structural features of Ni-Cr-Si-B materials obtained by different technologies

Kornienko

Никулина

Belousova

et al. 2016

IOP Conf. Ser.: Mater. Sci. Eng.

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“…Nanostructure materials with high hardness, elasticity modulus, thermal stability, wear and corrosion resistance belong to such materials [9][10][11]. There is a large variety of different coating's systems, but Ti-Si-N coatings stand separately due to its unique properties and characteristics.…”

Section: Introductionmentioning

confidence: 99%

Changing of Defect’s Structure and Properties of Superhard Nanostructured Ti-Si-N Coatings, Fabricated Using CPVD, before and after Annealing

Pogrebnjak¹,

Бондар²,

Sоbоl³

et al. 2013

SNL

Self Cite

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Using such unique methods of analysis as slow positron beam (SPB), RBS, µ-PIXE (proton microbeam), XRD, SEM with EDS, XPS, nanohardness and elastic modulus measurements, we studied superhard nanostructure Ti-Si-N coatings, which were deposited using Cathodic-PVD method, before and after annealing at the temperature of 600˚C for 30 minutes. It is shown in the paper that redistribution of N and Si occurs on the borders of nanograins after annealing, amorphous phase α-SiN x (Si 3 N 4 ) is created, defects segregates on interfaces and forms vacancy-type clusters with rather high concentration from 5 × 10 16 cm −3 to 7.5 × 10 17 cm −3 due to thermodiffusion. Solid solution (Ti,Si)N and small concentration of α-SiN (close to XRD detection limits) are formed in the coating. Also it was obtained, that deflected mode is formed in the coating (compressive deformation equals to -2.6%), but after thermal annealing deformation reduces to a value of −2.3%. Size of nanograins of solid solution (Ti, Si)N increases from 12.5 nm to (13.2 -13.4) nm. 25 nm size grains increase their size to 28.5 nm after annealing (under another deposition regime).

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Nano‐Microcomposite and Combined Coatings on Ti‐Si‐N/WC‐Co‐Cr/Steel and Ti‐Si‐N/(Cr ₃ C ₂ ) ₇₅ ‐(NiCr) ₂₅ Base: Their Structure and Properties

Pogrebnjak¹,

Углов²,

Il'yashenko³

et al. 2010

Ceramic Engineering and Science Proceedings

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Nanocomposite protective coatings based on Ti–N–Cr/Ni–Cr–B–Si–Fe, their structure and properties

Cited by 56 publications

References 2 publications

Structural features of Ni-Cr-Si-B materials obtained by different technologies

Structural features of Ni-Cr-Si-B materials obtained by different technologies

Changing of Defect’s Structure and Properties of Superhard Nanostructured Ti-Si-N Coatings, Fabricated Using CPVD, before and after Annealing

Nano‐Microcomposite and Combined Coatings on Ti‐Si‐N/WC‐Co‐Cr/Steel and Ti‐Si‐N/(Cr ₃ C ₂ ) ₇₅ ‐(NiCr) ₂₅ Base: Their Structure and Properties

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Nanocomposite protective coatings based on Ti–N–Cr/Ni–Cr–B–Si–Fe, their structure and properties

Cited by 56 publications

References 2 publications

Structural features of Ni-Cr-Si-B materials obtained by different technologies

Structural features of Ni-Cr-Si-B materials obtained by different technologies

Changing of Defect’s Structure and Properties of Superhard Nanostructured Ti-Si-N Coatings, Fabricated Using CPVD, before and after Annealing

Nano‐Microcomposite and Combined Coatings on Ti‐Si‐N/WC‐Co‐Cr/Steel and Ti‐Si‐N/(Cr 3 C 2 ) 75 ‐(NiCr) 25 Base: Their Structure and Properties

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Nano‐Microcomposite and Combined Coatings on Ti‐Si‐N/WC‐Co‐Cr/Steel and Ti‐Si‐N/(Cr ₃ C ₂ ) ₇₅ ‐(NiCr) ₂₅ Base: Their Structure and Properties