Effect of Ceramic Particle Velocity on Cold Spray Deposition of Metal-Ceramic Coatings

Sova, A.; Косарев, В. Ф.; Papyrin, A. N.; Smurov, I.

doi:10.1007/s11666-010-9571-3

Cited by 76 publications

(42 citation statements)

References 15 publications

(10 reference statements)

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“…This is beneficial to Al adhesion, and the binder effect of soft metal in turn promotes the deposition of SiC, similar to the observation by Shkodkin et al 85 . Grigoriev et al 166 and Sova et al 73,82,83 further pointed out that the addition of ceramics can lower the critical velocity for pure metals, and consequently "critical" temperature (the minimum gas stagnation temperature at which particles begin to adhere) necessary for spraying these metals, and the deposition efficiency also increases at the same time as indicated in Figure 17. 166 A small fraction of ceramic powders (Al2O3, SiC) in the feedstock does produce a strong activation effect on the substrate surface and increases the deposition efficiency of the metal component in the mixture compared to spraying of pure metals.…”

Section: Experimental Workmentioning

confidence: 94%

“…While a too large fraction of ceramic particles considerably hinders coating deposition because their erosion effect exceeds their activation effect. 73,82 For the activation mechanism of ceramics, Grigoriev et al 166 further identified two mechanisms: (1) ceramic particles increase the substrate roughness, and (2) clean the oxide films from the substrate surface increasing their chemical/metallurgical activity as shown in Figure 18. They also proposed (3) the possible interactive effect of metal and ceramic particles during flight under a very high powder flow rate, which cleans away oxide films on the surface of metal particles and increases chemical/metallurgical activity, though this is not supported by experimental evidence.…”

Section: Experimental Workmentioning

confidence: 99%

“…39,64,[67][68][69][70][71][72][73] The process parameters that influence these factors will affect the coating deposition. 6,[73][74][75][76][77][78][79][80][81][82][83][84][85][86][87] Up to now, CS has been used to fabricate a variety of coatings, including mostly elemental metals and alloys, but also composite coatings, providing corrosion resistance, 26,[88][89][90][91][92][93] wear resistance 21,[94][95][96] and high temperature resistance, [97][98][99] as well as functional coatings [100][101][102][103][104][105][106][107][108] for industrial applications. The detailed microstructure evolution in CS coatings have b...…”

Section: Introductionmentioning

confidence: 99%

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A Review of Advanced Composite and Nanostructured Coatings by Solid-State Cold Spraying Process

Assadi

Gaertner

et al. 2018

Critical Reviews in Solid State and Materials Sciences

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Cold spraying (CS) has been widely explored over the last decade due to its low process temperature and limited thermal effect on spray materials. As a solid-state process, the inherent deficiencies of traditional thermal spraying such as oxidation, decomposition and grain growth are avoided. This article summarizes the research work on the fabrication of composites and nanostructured coatings by the promising CS process. After a brief introduction to CS and its deposition mechanisms, the preparation methods of spray powders are classified. Different methods are appropriate for particles of various properties, and the tendency is to design composite powders by combined methods in order to create coatings with specified properties. Then the co-deposition mechanism of composite particles as well as research findings on metal-metal, metal-ceramic and metal-intermetallic composite coatings are reviewed concerning the deposition characteristics, microstructure and its relation to properties. Moreover, CS has been used to deposit a variety of nanostructured materials, including metals, metal-ceramic composites, and even ceramics, retaining their nanocrystalline nature in the coating without grain growth or phase transformation. Finally, the potential applications of CS and issues to be addressed in coating deposition are discussed.

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Section: Experimental Workmentioning

confidence: 94%

Section: Experimental Workmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Review of Advanced Composite and Nanostructured Coatings by Solid-State Cold Spraying Process

Assadi

Gaertner

et al. 2018

Critical Reviews in Solid State and Materials Sciences

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“…There are generally two approaches for using cold spray to fabricate metal matrix composite coatings: (a) pretreatment powder processing such as cladding (Ref 12) and sintering (Ref [13][14][15][16][17], and (b) spraying mechanical blends of two or more powders (Ref [18][19][20][21][22][23][24][25]. For mechanically blended ceramic and metallic powders, previous researchers reported co-deposition of metallic particles with oxides and carbides.…”

Section: Introductionmentioning

confidence: 99%

Cold Spray Deposition of Ni and WC-Reinforced Ni Matrix Composite Coatings

Alidokht

Yue

et al. 2017

J Therm Spray Tech

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Ni-WC composites are ideal protective coatings against wear and are often fabricated using laser cladding and thermal spray processes, but the high temperatures of these processes result in decarburization, which deteriorates the performance of the coating. Cold spray has the potential to deposit Ni-WC composite coatings and retain the composition of the initial WC feedstock. However, the insignificant plastic deformation of hard WC particles makes it difficult to build up a high WC content coating by cold spray. By using three different WC powder sizes, the effect of feedstock powder size on WC retention was tested. To improve WC retention, a WC/Ni composite powder in mixture with Ni was also sprayed. Microstructural characterization, including the deformed structure of Ni splats, retention, distribution, and fragmentation of WC, was performed by scanning electron microscopy. An improvement in WC retention was achieved using finer WC particles. Significant improvement in WC particles retention was achieved using WC/Ni composite powder, with the WC content in the coating being close to that of the feedstock.

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“…Some researchers suggested that local particle melting must occur at the particlesubstrate interface due to high impact energy. Others suppose that the particle adheres to the substrate additively following the solid-state plastic deformation process, so CS can have expanded opportunities of free form fabrication processes [8,9]. When the accelerated powders are impinged onto the substrate, conversion of their kinetic energy makes it possible for them to proceed with mechanical deformation of the particles, which results in relatively adherent coatings with relatively low porosity.…”

Section: Introductionmentioning

confidence: 99%