Application of artificial neural networks to predict the hardness of Ni–TiN nanocoatings fabricated by pulse electrodeposition

Jiang, Minghu; Ma, Chunyang; Xia, Fafeng; Zhang, Yue

doi:10.1016/j.surfcoat.2015.12.032

Cited by 37 publications

(10 citation statements)

References 19 publications

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“…Nanostructured composites deposited by the method of electrochemical deposition (electrodeposition) have been extensively studied during the last decade due to their interesting electronic, magnetic, electrochemical and optical properties and potential use as catalytic and electrode materials in various devices [1]. Electrochemical deposition has a widespread use in nanotechnology since it can be used to ll three-dimensional features at room temperature with good control of thickness and morphology [1]. During the last few decades, researchers have attempted to improve the properties through electrocodeposition of hard particles such as WC, Al 2 O 3 , SiC, and Si 3 N 4 [2][3][4][5] in various metal matrix materials such as Ni and Cu [2,3].…”

Section: Introductionmentioning

confidence: 99%

The effect of current density on microstructural homogeneity, hardness, fracture toughness and electrochemical behavior of electrodeposited Cu-0.5Co/WC nano-composite coating

2017

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Abstract. The Cu-0.5Co/WC nano-composite coating was synthesized on CP-copper substrate using Direct Current (DC) electrodeposition method. In this work, it was tried to increase the hardness of surface without considerable degradation of copper's particular physical properties such as electrical conductivity. The e ect of current density on microstructural homogeneity, hardness, fracture toughness, and electrochemical behavior of coating was investigated. The copper plates with the purity of 99.99% were used as electrodes. The electrolyte consists of tungsten carbide particles (30 g/l), copper sulfate (200 g/l), sulfuric acid (50 g/l), cobalt sulfate (50 g/l), and Sodium Dodecyl Sulfate (SDS) (0.3 g/(g of WC)) as surfactant. The particle size of tungsten carbide powder was in the range of 40-70 nm. The distribution of tungsten carbide particles in coating was studied using FESEM. Micro-hardness measurement was performed in Vickers scale. The fracture toughness of coating was determined by Vickers indentation test. The corrosion resistance of the electrodeposited Cu-Co and Cu-Co/WC nano-composite coatings was evaluated by polarization studies. Referring to the results, the use of optimum current density value (60 mA/cm 2 ) during the electrodeposition process improves hardness and corrosion resistance of nano-composite coating. Additionally, Cu-Co/WC composite coating shows more corrosion resistance than the unreinforced one.

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Section: Introductionmentioning

confidence: 99%

The effect of current density on microstructural homogeneity, hardness, fracture toughness and electrochemical behavior of electrodeposited Cu-0.5Co/WC nano-composite coating

2017

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“…The mass transfer form of ordinary electrodeposition is mainly diffusion and electromigration, while the main form of jet electrodeposition is convection, so jet electrodeposition speeds up the material transfer efficiency [18,19] . Jet electrodeposition technology is an outstanding representative in high-speed electroplating [20,21] . Due to its unique fluid dynamics characteristics, the surface of the cathode workpiece under the high-speed impact of electroplating solution is not only mechanically activated to effectively reduce the thickness of the surface layer and the diffusion layer at the negative workpiece, but also the metal grains are refined and the deposition layer is more compact.…”

Section: Scanning Jet Electrodeposition Test Principlementioning

confidence: 99%

Simulation and Experimental Research on Nickel-based Coating Preparedby Jet Electrodeposition at Different Scanning Speeds

Xiu-qing

Zhang

et al. 2021

Preprint

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In order to study the processing mechanism of jet electrodeposition and explore the influence of different scanning speed on the wear and corrosion resistance of nickel-based coating prepared by jet electrodeposition. The reciprocating scanning motion of the nozzle was used to prepare the nickel-based coating in a specific area. Combined with COMSOL software, the coupling effect of multiple physical fields in the process of jet electrodeposition at different scanning speeds was numerically calculated. Scanning electron microscope, microhardness tester, material surface comprehensive performance tester and electrochemical workstation were used to analyze the surface morphology, section thickness, microhardness, abrasion resistance and corrosion resistance of the nickel-based coating prepared by jet electrodeposition at different scanning speeds. Results show that with the increase of scanning speed, coating grain size decreases, and the coating thickness increases after the first decreases, and microhardness increase after decreases first, abrasion resistance and corrosion resistance were lower after increase first, When the scanning speed reaches 600mm/min, the jet electrodeposited nickel-based coating has the best performance, the maximum thickness reaches 24.83μm, the microhardness reaches 616.86HV, and the wear scar area is 2766.75μm2. In addition, the self-corrosion potential is -0.33V, the self-corrosion current density is 5.16E-7A·cm2, and the equivalent impedance is 4660Ω. The experimental results are consistent with the simulation results, which verifies the accuracy of the simulation model and provides theoretical guidance for further experiments related to jet electrodeposition.

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“…Kaidah ini mampu memberikan nilai kekerasan mikro hingga 150 HV (pada beban 150 gramgaya) [16] ataupun 501 kg.gaya/mm 2 [17], 1000 HV [18], 902.8 HV [16].…”

Section: Kaidah Pelapisanunclassified

Potensi Pembentukan Lapisan Super Dan Ultra Keras Senyawa Komposit Nitrida Menggunakan Kaidah Elektrodeposisi

Budi

2016

SPEKTRA

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metal (Ni) is used as a matrix because good corrosion resistance properties. The composition, morphology, crystal structure, and the corrosion resistance of composite layer are affected by electrodeposition parameters such as electrodeposition current and the concentration of particles TiN and AlN. The formation of the composite layer Ni-TiAlN/Si3N4 using electrodeposition methode potentially resulting super and ultra hard nitride composite layer.

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Application of artificial neural networks to predict the hardness of Ni–TiN nanocoatings fabricated by pulse electrodeposition

Cited by 37 publications

References 19 publications

The effect of current density on microstructural homogeneity, hardness, fracture toughness and electrochemical behavior of electrodeposited Cu-0.5Co/WC nano-composite coating

The effect of current density on microstructural homogeneity, hardness, fracture toughness and electrochemical behavior of electrodeposited Cu-0.5Co/WC nano-composite coating

Simulation and Experimental Research on Nickel-based Coating Preparedby Jet Electrodeposition at Different Scanning Speeds

Potensi Pembentukan Lapisan Super Dan Ultra Keras Senyawa Komposit Nitrida Menggunakan Kaidah Elektrodeposisi

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