On the Adhesive Strength Quantification and Tribological Performance of the Multilayered Fe–Ni Coating Fabricated by Electroplating

Huang, Ruoxuan; Ma, Zeyu; Dong, Wei; Shen, Yan; Du, Fengming; Xu, Jiujun; Mu, Jin

doi:10.1007/s11223-019-00074-9

Cited by 8 publications

(2 citation statements)

References 19 publications

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“…The Ollard method was used to test the normal adhesion strength between the Ni layers [21]. As is shown in Figure 3a, the first Ni layer and second Ni layer were electroformed on a copper substrate successively.…”

Section: Normal Adhesion Strength Testmentioning

confidence: 99%

A Nickel Dissolution Process for Multilayer Electroforming to Achieve Ultrahigh Adhesion Strength

Wang,

Shen,

et al. 2023

Materials

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Multilayer electroforming has a high potential to produce Ni/Ni layer structured metal walls with excellent material properties and a high thickness uniformity. However, Ni is easily oxidized in air, which fundamentally leads to a low adhesion strength between the Ni layers. Here, a novel in situ treatment is proposed for improving the adhesion performance between Ni layers. This treatment integrated the steps of electrochemical dissolution, surface protection, and electroforming. A study of the polarization behavior implied the electroformed Ni layer was dissolved efficiently in the NH2SO3H solution, beginning at a dissolution current density of 5 A·cm−2, which could remove the oxide film. A smooth substrate surface with a good surface hydrophilicity was obtained starting at 8 A·cm−2, helping to protect the activated substrate from being contaminated and oxidized. The experimental results showed that ultrahigh normal and shear adhesion strengths over 400 MPa between the Ni layers were achieved.

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Section: Normal Adhesion Strength Testmentioning

confidence: 99%

A Nickel Dissolution Process for Multilayer Electroforming to Achieve Ultrahigh Adhesion Strength

Wang,

Shen,

et al. 2023

Materials

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“…This coating is deposited using alternating current and direct current in sequence [ 11 ]. The adhesion strength of the as-deposited coating was as high as approximately 400 MPa, as tested using a modified Ollar method [ 12 ]. Moreover, due to the low pH value in the electrolyte and the high applied current density, a reticular coating surface was generated, which was able to entrap the wear debris, reserve the lubrication oil, and relieve the inner stress.…”

Section: Introductionmentioning

confidence: 99%

Numerical and Experimental Investigation of the Effect of Current Density on the Anomalous Codeposition of Ternary Fe-Co-Ni Alloy Coatings

Zhang

Liu

et al. 2022

Materials

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Gradient-structured ternary Fe-Co-Ni alloy coatings electrodeposited on steel substrates at various current densities from chloride baths were numerically and experimentally investigated. The electrodeposition process, considering hydrogen evolution and hydrolysis reaction, was modelled using the finite element method (FEM) and was based on the tertiary current distribution. The experimentally tested coating thickness and elemental contents were used to verify the simulation model. Although there was a deviation between the simulation and experiments, the numerical model was still able to predict the variation trend of the coating thickness and elemental contents. The influence of the current density on the coating characterization was experimentally studied. Due to hydrogen evolution, the coating surface exhibited microcracks. The crack density on the coating surface appeared smaller with increasing applied current density. The XRD patterns showed that the deposited coatings consisted of solid-solution phases α-Fe and γ (Fe, Ni) and the metallic compound Co3Fe7; the current density in the present studied range had a small influence on the phase composition. The grain sizes on the coating surface varied from 15 nm to 20 nm. The microhardness of the deposited coatings ranged from 625 HV to 655 HV. Meanwhile, the average microhardness increased slightly as the current density increased from 5 A/dm2 to 10 A/dm2 and then decreased as the current density further increased. Finally, the degree of anomaly along with the metal ion and hydrogen atom concentrations in the vicinity of the cathodic surface were calculated to investigate the anomalous codeposition behaviour.

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Effect of Y2O3 addition on the microstructure and liquid LBE cavitation erosion behaviors of Fe-Cr-Al-Ti-C-xY2O3 laser clade coatings

Jiang

Zhao

Cao

et al. 2022

Journal of Nuclear Materials

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On the Adhesive Strength Quantification and Tribological Performance of the Multilayered Fe–Ni Coating Fabricated by Electroplating

Cited by 8 publications

References 19 publications

A Nickel Dissolution Process for Multilayer Electroforming to Achieve Ultrahigh Adhesion Strength

A Nickel Dissolution Process for Multilayer Electroforming to Achieve Ultrahigh Adhesion Strength

Numerical and Experimental Investigation of the Effect of Current Density on the Anomalous Codeposition of Ternary Fe-Co-Ni Alloy Coatings

Effect of Y2O3 addition on the microstructure and liquid LBE cavitation erosion behaviors of Fe-Cr-Al-Ti-C-xY2O3 laser clade coatings

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