Characteristics of electro-co-deposited Ni–Al2O3 nano-particle reinforced metal matrix composite (MMC) coatings

Gül, Harun; Kılıç, Fatih; Aslan, Serdar; Alp, Ahmet; Akbulut, Hatem

doi:10.1016/j.wear.2008.12.022

Cited by 218 publications

(101 citation statements)

References 35 publications

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“…This was attributed to the decrease in the grain size of the nanocomposite coating with the addition of nanoparticles in the plating bath. The nanoparticles provided more nucleation sites and retarded crystal growth, resulting in a smaller crystal size for the metal matrix in the composite coating [4,13]. Figure 3b shows microhardness of pure Cu and CuCNTs nanocomposites.…”

Section: Resultsmentioning

confidence: 99%

Tribological Behavior of Copper/MWCNT Nanocomposites Produced by Pulse Electrodeposition

et al. 2014

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Copper coatings containing well-distributed multiwalled carbon nanotubes were obtained by pulse electrodeposition in acidic sulfate bath in order to improve the microhardness and wear resistance of coatings. Multiwalled carbon nanotubes concentration was determined as the most signicant factor for the incorporation of multiwalled carbon nanotubes in copper based electrolyte. The amount of embedded multiwalled carbon nanotubes and the microhardness of nanocomposites were found to increase with the increase of multiwalled carbon nanotubes in the electrolyte. The tribological properties of nanocomposites deposited by pulse electrocodeposition technique were studied by reciprocating ball on-disk method. The characterization of the coatings was investigated by scanning electron microscopy and X-ray diraction facilities. The experimental results indicated that the wear resistance of copper composite is superior to that of pure copper. The friction coecient and wear rates decreased with the increase in the concentration of multiwalled carbon nanotubes in the electrolyte.

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Section: Resultsmentioning

confidence: 99%

Tribological Behavior of Copper/MWCNT Nanocomposites Produced by Pulse Electrodeposition

et al. 2014

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“…Among them, oxide and nanocomposite coatings have attracted much attention. Particularly noteworthy are SiO 2 coatings [15,16], as well as oxide matrix composite coatings like Ni/SiO 2 [17]. This type of coatings exhibits good corrosion resistance and high mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Influence of PAA on the Microstructure and Corrosion Resistance of Electrophoretically Deposited SiO2 and Ni/SiO2 Coatings on X2CrNiMo17-12-2 Steel

Ratajski

Kalemba–Rec

Dubiel

2017

Archives of Metallurgy and Materials

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The effect of anionic surfactant in the form of polyacrylic acid (PAA) on the electrophoretic deposition of the SiO 2 and Ni/ SiO 2 coatings on X2CrNiMo17-12-2 stainless steel was examined. Parameters of the process, such as chemical composition of the suspensions, voltage between the electrodes and the deposition time were experimentally selected. Zeta potential measurements showed a beneficial effect of polyacrylic acid on the SiO 2 and Ni particles stability in ethanol. Scanning and transmission electron microscopy studies revealed that the microstructure of the coatings obtained from the suspensions containing polyelectrolyte is more homogenous and has less amount of desiccation cracks on the surface. The results of the polarization tests have shown that addition of anionic surfactant improves also corrosion resistance of the coatings in 3.5% NaCl solution.

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“…The size and the amount of the inserted reinforced alumina phase determines the properties of Ni/Al 2 O 3 composite coatings. 4,6 Until now, most of the works were carried out using Al 2 O 3 microparticles. 2,4,[7][8][9][10] However, the recent emergence of nanotechnologies has led to scientific and technological interest in the electrodeposition of Ni/Al 2 O 3 nanocom-posite coatings with Al 2 O 3 particles smaller than 100 nm, mainly devoted to an increase in the abrasion resistance of material surfaces.…”

Section: Introductionmentioning

confidence: 99%

“…2,4,[7][8][9][10] However, the recent emergence of nanotechnologies has led to scientific and technological interest in the electrodeposition of Ni/Al 2 O 3 nanocom-posite coatings with Al 2 O 3 particles smaller than 100 nm, mainly devoted to an increase in the abrasion resistance of material surfaces. 3,[5][6][11][12] These performance characteristics are affected primarily by the process parameters, including the electrolyte composition (e.g., the use of organic growth inhibitors), as well as the type (DC, PC, PRC), amplitude and frequency of the used current. Proper optimization of electrodeposition process of Ni/ nm Al 2 O 3 coatings is faced with the fundamental problem of the agglomeration of particles in the electrolyte, and therefore an insufficient and uneven distribution of nanoparticles in the nickel matrix.…”

Section: Introductionmentioning

confidence: 99%

“…Proper optimization of electrodeposition process of Ni/ nm Al 2 O 3 coatings is faced with the fundamental problem of the agglomeration of particles in the electrolyte, and therefore an insufficient and uneven distribution of nanoparticles in the nickel matrix. 5,6 In the study the effect of the addition of a growth inhibitor and nano-alumina powder disperse phase, as well as the type of current (DC, PC, PRC) on the corrosion properties of nickel and composite Ni/Al 2 O 3 coatings were examined.…”

Section: Introductionmentioning

confidence: 99%

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The effect of current types on the microstructure and corrosion properties of Ni/NANOAl2O3 composite coatings

Kucharska¹,

Krawczyńska²,

Rożniatowski³

et al. 2017

Mater. Tehnol.

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Nickel matrix composite coatings with a ceramic disperse phase have been widely investigated due to their enhanced properties, such as higher hardness and wear resistance in comparison to pure nickel. This paper describes the research on nickel and nickel-alumina coatings. The coatings were obtained from a Watts bath with the presence of nickel grain-growth inhibitors by DC (direct current), PC (pulse current) and PRC (pulsed reverse current) plating. The study includes the composite coatings of microcrystalline and nanocrystalline Ni matrix and nanometric Al2O3 particles. In order to ensure uniform co-embedding of the disperse phase particles with a nickel matrix and producing a stable suspension, mechanical agitation was also used. It was proved in our previous investigations that mechanical agitation is the best way of embedding nano-alumina particles in a nickel matrix. The effect of the electroplating techniques on the microstructure (SEM -scanning electron microscopy, STEMscanning transmission electron microscopy, XRD -X-ray diffraction, surface profile) of Ni and Ni/Al2O3 composite coatings was investigated. In order to evaluate the corrosion resistance of the produced coatings, the corrosion studies were carried out by electrochemical impedance spectroscopy and the potentiodynamic method in a 0.5-M NaCl solution. Bode diagrams obtained by impedance spectroscopy method were established. The equivalent electric circuit and its parameters were determined to interpret impedance spectra. The corrosion current and corrosion potential were determined. Investigations of the corrosion damage to the produced surface layers were performed by scanning microscope techniques. The completed studies have shown that the type of current significantly affects the structure of the nickel and composite coatings, as well as their corrosion properties. Keywords: nanocomposites, Ni/Al 2 O 3 coatings, corrosion resistance, pulse electrodeposition Matrike nikljevih kompozitnih oblog, razpr{enih s kerami~no fazo, so pogosto raziskovali zaradi njihovih izbolj{anih lastnosti, kot na primer zaradi ve~je trdote in odpornosti proti obrabi, v primerjavi s~istim nikljem.^lanek opisuje raziskave na nikljevih in nikelj-aluminijevih premazih. Prevleke so bili narejene iz Watts kopeli s prisotnostjo inhibitorjev rasti zrn niklja s povr{insko obdelavo z enosmernim (DC), impulznim (PC) in impulzno-povratnim (PRC) tokom. [tudija vklju~uje mikrokristalne in nanokristalne prevleke kompozitov Ni matrike in nanometrskih Al2O3 delcev. Da bi zagotovili enotno delovanje vgrajevanja disperzne faze delcev z matriko Ni in pripravo stabilne suspenzije, je bilo uporabljeno tudi mehansko spodbujanje z me{anjem. Dokazano je bilo, da je mehanska spodbuda najbolj{i na~in utrjevanja delcev aluminijevega oksida v Ni matriki. Raziskan je bil u~inek tehnik povr{inske obdelave na mikrostrukturo (SEM -elektronska mikroskopija, STEM -transmisijska elektronska mikroskopija, XRD -rentgenska difrakcija, povr{inski profil) niklja in Ni/Al2O3 kompozita. Da bi ocenili odpo...

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Characteristics of electro-co-deposited Ni–Al2O3 nano-particle reinforced metal matrix composite (MMC) coatings

Cited by 218 publications

References 35 publications

Tribological Behavior of Copper/MWCNT Nanocomposites Produced by Pulse Electrodeposition

Tribological Behavior of Copper/MWCNT Nanocomposites Produced by Pulse Electrodeposition

Influence of PAA on the Microstructure and Corrosion Resistance of Electrophoretically Deposited SiO2 and Ni/SiO2 Coatings on X2CrNiMo17-12-2 Steel

The effect of current types on the microstructure and corrosion properties of Ni/NANOAl2O3 composite coatings

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