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Preparation and Investigation of Ni–Co–P Alloy Coatings Using Jet Electrodeposition with Varying Pulse Parameters

Crystals, ISSN: 2073-4352, Vol: 13, Issue: 2
2023
  • 2
    Citations
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  • 3
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  • 1
    Mentions
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  • Citations
    2
  • Captures
    3
  • Mentions
    1
    • Blog Mentions
      1
      • Blog
        1

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Crystals, Vol. 13, Pages 303: Preparation and Investigation of Ni–Co–P Alloy Coatings Using Jet Electrodeposition with Varying Pulse Parameters

Crystals, Vol. 13, Pages 303: Preparation and Investigation of Ni–Co–P Alloy Coatings Using Jet Electrodeposition with Varying Pulse Parameters Crystals doi: 10.3390/cryst13020303 Authors: Yin Zhang

Article Description

Ni–Co–P alloy coatings were successfully fabricated by jet electrodeposition with varying pulse frequencies and duty cycles in order to prolong the longevity of steel C1045 substrates. The results showed that the microstructures and properties of samples were significantly affected by pulse frequencies and duty cycles. All the samples with varying pulse frequencies and duty cycles exhibited a face-centered cubic (FCC) structure. Additionally, the average grain size of the samples reached 20.6 nm. The microhardness of the coatings was observed to first increase, and then decrease, with a rise in pulse frequencies and duty cycles. The microhardness reached 656.2 HV, and the wear scar width of the coatings reached 414.4 µm at 4 kHz pulse frequency and 80% duty cycle. Additionally, the corrosion current densities (I) of samples reached a minimum value of 0.74 µA·cm, the corrosion rates (R) reached a minimum value of 8.9 µm·year, and the charge transfer resistance (R) reached a maximum value of 8.36 × 10 Ω·cm, which indicated the optimal seawater corrosion resistance of the deposited coatings.

Bibliographic Details

Yin Zhang; Huawei Jin; Lingling Chen; Nyambura Samuel Mbugua

MDPI AG

Chemical Engineering; Materials Science; Physics and Astronomy; Chemistry

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