Mechanical Characterization of Electrodeposition of Ni-P Alloy Coating

Lekmine, Farid; Temam, Hachemi Ben; Naoun, M.; Hadjadj, M.

doi:10.21272/jnep.12(1).01001

Cited by 6 publications

(4 citation statements)

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“…Ni-P-TiO2 composite coating was deposited by electrodeposition on a copper substrate. The bath composition and procedure conditions used for preparation of the coatings are reported in our previous study [14].…”

Section: Coating Fabricationmentioning

confidence: 99%

Deposition Rate and Electrochemical Corrosion Behavior of Nickel-Based Composite Coatings

Lekmine¹,

Zidani²,

Chala³

et al. 2022

J. Nano- Electron. Phys.

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Metal corrosion control is technically, economically, environmentally and aesthetically important. The best option is to use coatings to protect metals and alloys from corrosion. Nickel plating is one of the most widely used methods for protecting less noble metal surfaces since the turn of the century. The need for improved coatings with better wear and corrosion resistance has led to the development and use of composite electrostatic deposits. In this paper, Ni-P-TiO2 composite coatings were fabricated by direct current electrodeposition on copper substrates. X-ray diffraction (XRD) analysis and energy dispersive spectroscopy (EDS) were employed to determine the average particle size of coatings elemental chemical composition. The electrochemical corrosion behavior of Ni-P-TiO2 composite coatings in 3.5 wt. % NaCl was characterized using a potentiodynamic polarization test and electrochemical impedance spectroscopy (EIS). The results indicate that TiO2 nanoparticles are included in the coatings. The deposition rate increased with increasing current density; the microhardness of the coatings noticeably increased with current density. Corrosion tests have shown that 3 A.dm -2 is the optimal value of the applied current density in terms of the lowest value Ecorr  -504 mV and the best charge transfer resistance Rp  114.7 Ω.cm 2 .

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Section: Coating Fabricationmentioning

confidence: 99%

Deposition Rate and Electrochemical Corrosion Behavior of Nickel-Based Composite Coatings

Lekmine¹,

Zidani²,

Chala³

et al. 2022

J. Nano- Electron. Phys.

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“…Surface morphology of the coatings and the percentage by weight of constituent elements of the coatings is characterized using scanning electron microscope FEI QUANTA 200 (SEM) and energy-dispersive Xray spectroscopy (EDX) analysis tool attached to SEM respectively, Xray diffractometer (XRD) (D8 Advance model) with CuK α radiation (1.5406 Å) is used to analyse the phases structure. In order to test the adhesion of the Ni-P coatings, the samples are heated for 30 minutes at 250°C and then immersed in water at room temperature [15].…”

Section: Ni-p Coatings Characterizationmentioning

confidence: 99%

Effects of Current Density on Ni–P Coating Obtained by Electrodeposition

Lekmine¹,

Digheche²,

Naoun³

et al. 2021

Metallofiz. Noveishie Tekhnol.

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In this work, Ni-P coatings are deposited on the steel substrate by electrodeposition from a solution containing nickel sulfate and sodium hypophosphite (NaH 2 PO 2 ). The effect of the current density on the morphology, phase structure, microhardness, and corrosion performance of the Ni-P coatings are studied. Scanning electron microscopy and energy dispersive X-ray analysis and X-ray diffraction are used to study the morphological, composition and phase structure. The corrosion performance of the coatings is evaluated by weight loss, electrochemical impedance spectroscopy and Tafel polarization. Results showed that the morphology of the electrodeposited Ni-P alloys coatings has spherical grains for all the samples, and the Ni 3 P phases are formed all over the microstructure of the coatings. It is observed that the phosphorus content and microhardness are dependent on the current density. The corrosion tests show that 5 A⋅dm −2 current density is the optimal value which gives the best protective coating against corrosion. It also exhibits superior microhardness originated from the higher Ni 3 P amount.

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“…Electrodeposited composites based on Ni-P alloys with different solid particles are promising as protective coatings due to their outstanding corrosion and wear resistance properties. These make them popular choices across multiple industries [15,16]The hardness of pristine Ni-P coatings can reach approximately 540−580 HV [17,18]. The incorporation of diamond particles in Ni-P deposits has been shown to significantly improve properties such as hardness, corrosion, and wear resistance of the coatings [19,20].…”

Section: Introductionmentioning

confidence: 99%

Effect of Current Density on Hardness of Ni-P/Diamond Composite Coatings Fabricated by Electrodeposition

Kothanam,

Hom-on,

Srimaneerat

et al. 2024

SSP

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Nickel-Phosphorous/diamond coatings were electrodeposited onto steel substrates using a pulse-stirring method. The electrodeposition process involved a solution containing nickel sulphate, phosphorus acid, and diamond particles, resulting in the co-electrodeposition of 4-8 µm of diamond particles into a Ni-P matrix. To investigate the effects of electrodeposition current density on the properties of the Ni-P/diamond composite coating, scanning electron microscopy (SEM), hardness testing, and electrochemical testing were employed. The research findings revealed that higher current density (0.03 A/cm2) led to a denser diamond particle coating with diamond contents of up to 32.70 vol%. Additionally, the Ni-P/diamond coatings achieved a maximum hardness of 2819 ± 12.55 HV0.1 when fabricated using the current density of 0.03 A/cm2. The "pulse-stirring fabrication" method yields a coating with significantly enhanced wear resistance due to incorporating densely packed diamond particles. The intermittent pulses during the fabrication process are crucial for achieving the desired dispersion and adhesion of the diamond particles, leading to a practical and durable wear-resistant coating.

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Mechanical Characterization of Electrodeposition of Ni-P Alloy Coating

Cited by 6 publications

References 0 publications

Deposition Rate and Electrochemical Corrosion Behavior of Nickel-Based Composite Coatings

Deposition Rate and Electrochemical Corrosion Behavior of Nickel-Based Composite Coatings

Effects of Current Density on Ni–P Coating Obtained by Electrodeposition

Effect of Current Density on Hardness of Ni-P/Diamond Composite Coatings Fabricated by Electrodeposition

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