Improvement of the corrosion resistance of amorphous Ni-P coatings modified by a laser–electrodeposition hybrid process: Effect of morphology evolution on the electrochemical corrosion behavior

Wu, Yucheng; Zhang, Zhaoyang; Leng, Zhihao; Zhang, Jiabei; Yang, Shuai; Shen, Wenrong; Xu, Kun; Zhu, Hao; Liu, Yang

doi:10.1016/j.apsusc.2023.157016

Cited by 9 publications

(1 citation statement)

References 43 publications

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“…Figures 5(b)-(d) shows the surface morphology after Due to the buffering effect of the liquid phase medium, the laser pretreatment improved the removal rate while also making the sample surface cleaner, resulting in a reduction in the initial surface defects of the sample. The 'tip discharge' in jet electrodeposition was weakened, causing a relatively flat coating after jet electrodeposition [32,33]. Figure 5(c) shows the nickel coating deposited by laser treatment in a saturated NaHCO 3 solution.…”

Section: Surface Morphologymentioning

confidence: 99%

Research on the manufacturing of nickel coatings by jet electrodeposition after laser pretreatment with different media

Jiang,

Cheng,

Zhai

et al. 2024

Surf. Topogr.: Metrol. Prop.

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This study aims to address the corrosion issues faced by 45 steel to meet its usage requirements and propose a method combining liquid-phase assisted laser and jet electrodeposition. In this method, the sample surface was the first laser pretreated in different media, and then Ni was deposited on its surface using jet electrodeposition. This paper investigates in detail the effects of laser pretreatment on the surface quality of nickel coating after jet electrodeposition in four different media (Air, Water, Saturated NaHCO3, 95%C2H5OH+5%H2O2). The experimental results indicate that liquid-phase assisted laser pretreatment had improved the surface quality of Ni coating. Especially after laser pretreatment in saturated NaHCO3 medium, the adhesion of the deposited coating increased by 50% compared to air, and the roughness decreased from 20.945 μm in the air to 0.373 μm. The corrosion current density decreased from 120.2 μA·cm-2 on the substrate to 1.605 μA·cm-2.

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Section: Surface Morphologymentioning

confidence: 99%