Enhancement of microhardness and wear resistance of Ni–CeO<sub>2</sub> nanocomposite coatings

Qu, Ningsong; Hu, Xiaoyun; Qian, Wang-jie; Zhu, Zengwei

doi:10.1179/1743294413y.0000000230

Cited by 12 publications

(5 citation statements)

References 17 publications

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“…It is clear that comparing different samples, the weight loss is always higher for pure nickel coatings compared to the composite coatings. This was indeed expected, as the literature almost uniformly accepts that a higher weight loss is always related to a lower microhardness since during wear more material is removed from softer surfaces [1,17,32].…”

Section: Tribological Studiesmentioning

confidence: 56%

Assessment of Tribological behavior of nickel-nano Si₃N₄ composite coatings fabricated by pulsed electroplating process

Sajjadnejad

Abadeh

Omidvar

et al. 2020

Surf. Topogr.: Metrol. Prop.

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Pure nickel and nano-composite nickel-silicon nitride (Si 3 N 4) coatings were fabricated using pulsed current electrodeposition technique. A control sample for each coating was created and the effect of current density, duty cycle, and pulse frequency on the tribological properties of the electrodeposited coatings was investigated by altering these parameters. X-ray diffraction, scanning electron microscopy and pin-on-disk tests were performed to assess the properties of the fabricated coatings. X-ray diffraction results indicated that both pure and nano-composite coatings possess preferential growth of (111) crystallite planes, which results in the formation of binary symmetrical shaped grains. However, incorporating particles into the coating hindered the growth on other planes, specially (200) growth plane. Incorporation of Si 3 N 4 particles into the coating reduced crystallite size and increased grain refinement; both of which resulted in the increased microhardness of the deposited coatings through dispersion strengthening mechanism. Complementary atomic force microscopy investigations indicated that the roughness of all nano-composite samples was higher than that for the pure nickel coating. After incorporation of Si 3 N 4 particles the wear behavior of all coatings was improved as a result of the improved hardness. Measured wear rates indicate that increasing the current density, during electrodeposition, is the most influencing parameter in reducing the wear coefficient. Furthermore, implementing particles changes the wear mechanism from high plastic deformation, gouging, and delamination to ploughing. Although nano-composite coatings exhibit wider grooves on the surface compared to those on pure nickel coatings, they tend to adhere better to the substrate. The friction coefficient for all nano-composite coatings were marginally higher than that for pure nickel coating, to our understanding, as a result of inadequate load carrying effect of silicon nitride particles.

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Section: Tribological Studiesmentioning

confidence: 56%

Assessment of Tribological behavior of nickel-nano Si₃N₄ composite coatings fabricated by pulsed electroplating process

Sajjadnejad

Abadeh

Omidvar

et al. 2020

Surf. Topogr.: Metrol. Prop.

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“…In order to increase the mechanical strength, corrosion and wear resistance, the second phase nanoparticles reinforced metal matrix nanocomposites has been prepared and reported in the earlier are Cu-TiO 2 , Cu-CeO 2 , Cu-SiO 2 , Cu-ZrO 2 , Cu-Al 2 O 3 , Cu-Si 3 N 4 , Cu-CNTs etc. [3][4][5][6][7][8][9][10][11][12].These second phase nanoparticles reinforced metal matrix nanocomposites showed increased hardness and better corrosion and wear resistance compared to particle free metal electrodeposits [13][14][15][16][17][18][19][20][21][22]. The advantages of electrodeposition is an excellent low cost and low temperature technique compared to the conventional methods such as powder metallurgy, sputtering, spin coating, thermal spraying, centrifugal casting etc., which is used to coat over the complicated conductive surfaces.…”

Section: Introductionmentioning

confidence: 99%

Nano SiC Reinforced Copper Nanocomposite by a Simple Electrodeposition Method

Ramalingam¹

2019

IJEAT

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The Cu and Cu-SiCnanocomposite coatings were prepared by a simple electrodeposition technique from acidic copper sulphate electrolyte using SiC nanoparticles with an average particles size of 50 nm under optimized bath composition and preparation conditions for possible electrical contact material applications such as electrical switch and wiring boards where higher electrical conductivity and thermal conductivity is required. The scope of the present study is to enhance the strength, mechanical, corrosion and wear resistance properties of Cu-SiCnanocomposite compared to pure Cu coatings. The as prepared Cu and Cu-SiCnanocomposites were characterized for structural, mechanical and corrosion resistance properties by EDX, XRD, FESEM, Vickers microhardness tester and AC-impedance and Tafel polarization techniques. The elemental composition (wt% of Cu and SiC nanoparticles) of Cu-SiCnanocomposites was analyzed by EDX coupled with FESEM analysis confirms the presence of nanoSiC in the copper matrix and they were 89wt% of Cu and 11 wt% of SiC nanoparticles respectively. The surface morphology of Cu and Cu-SiCnanocomposites was studied by FESEM analysis shows that SiC nanoparticles were uniformly dispersed in the surface of the copper matrix compared to pure copper. The crystallite structure and grain size of the Cu and Cu-SiCnanocomposite electrodeposits was measured by XRD analysis. From the XRD results, the grain size calculated using Debye-Scherrer’s formula was ~35 nm for pure Cu and ~33 nm Cu-SiCnanocomposite. The crystallite structure of Cu and Cu-SiCnanocomposites was fcc (face centered cubic) and the preferred orientation of the plane was (220). The microhardness of Cu-SiCnanocomposite coating increased with increasing SiC nanoparticles concentration in the bath compared to pure Cu coating. The corrosion resistance measurements were performed for the pure Cu and Cu-SiCnanocomposite coatings by electrochemical impedance spectroscopy (EIS) and Tafel polarization techniques. It shows that, Cu-SiCnanocomposites has high corrosion resistance than pure Cu in 3.5wt% NaCl solution.

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“…After the laser operation, post-texturing polishing is needed to remove bulges around the dimples rims generated due to the high-energy action of the pulsating laser beam [10,11]. Electrodeposition has become an effective way to enhance the tribological performances of coatings due to its high efficiency and low cost [12][13][14]. However, to the best of our knowledge, there is little work concentrating on fabricating the textured surfaces by means of electrodeposition.…”

Section: Introductionmentioning

confidence: 99%

Tribological performances of textured surfaces prepared by electrodeposition method

Liu

Yan

et al. 2017

Surface Engineering

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Surface texturing has become an increasingly prevalent approach to improve tribological properties of materials. In this work, textured surfaces, fabricated by means of electrodeposition, were studied by measuring the tribological properties. An improved method relying on material ratio curve was used to obtain more accurate wear volumes for the textured surfaces. The results showed that the bumps are distributed on the surfaces in a random array. Compared with the untextured surface, textured surfaces show lower friction and significantly improved wear resistance. The troughs around the bumps act as pockets for collecting the abrasive particles, which minimise the friction and wear of surfaces.

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Enhancement of microhardness and wear resistance of Ni–CeO₂ nanocomposite coatings

Cited by 12 publications

References 17 publications

Assessment of Tribological behavior of nickel-nano Si₃N₄ composite coatings fabricated by pulsed electroplating process

Assessment of Tribological behavior of nickel-nano Si₃N₄ composite coatings fabricated by pulsed electroplating process

Nano SiC Reinforced Copper Nanocomposite by a Simple Electrodeposition Method

Tribological performances of textured surfaces prepared by electrodeposition method

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Enhancement of microhardness and wear resistance of Ni–CeO2 nanocomposite coatings

Cited by 12 publications

References 17 publications

Assessment of Tribological behavior of nickel-nano Si3N4 composite coatings fabricated by pulsed electroplating process

Assessment of Tribological behavior of nickel-nano Si3N4 composite coatings fabricated by pulsed electroplating process

Nano SiC Reinforced Copper Nanocomposite by a Simple Electrodeposition Method

Tribological performances of textured surfaces prepared by electrodeposition method

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Enhancement of microhardness and wear resistance of Ni–CeO₂ nanocomposite coatings

Assessment of Tribological behavior of nickel-nano Si₃N₄ composite coatings fabricated by pulsed electroplating process

Assessment of Tribological behavior of nickel-nano Si₃N₄ composite coatings fabricated by pulsed electroplating process