Tensile Properties of Electrodeposited Nanocrystalline Ni-Cu Alloys

Dai, Pinqiang; Zhang, C.; Wen, Jian Kang; Rao, H. C. Venkata; Wang, Q. T.

doi:10.1007/s11665-016-1881-2

Cited by 23 publications

(7 citation statements)

References 36 publications

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“…1 shows that the Ni and Cu peak is present only in the coating. According to the figure, it is clear that nickel and copper together formed a solid solution leading to the formation of the nickel-copper alloy phase, and finally, the peak of this solid solution is observed, which has been proven in other studies as well [25,26]. The conducted studies have shown that the presence of Cu atoms in the structure of Ni leads to a decrease in the lattice parameter and ultimately shifts 2θ to a lower value [27].…”

Section: Characterization Of Coatingssupporting

confidence: 62%

Ni-Cu matrix composite reinforced with CNTs: preparation, characterization, wear and corrosion behavior, inhibitory effects

Heragh

Eskandarinezhad

Dehghan

2020

jcc

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St37 steel has been used in various industries due to its abundance and low cost. However, the high corrosion rate of steel in acidic environments is one of the limiting factors for its application. In this study, Ni-Cu composite coating reinforced with CNTs was applied on the st37 steel substrate. The extract of the Sarang Semut plant was added to the coating as inhibitory particles and the electrochemical behavior of the coating was investigated. The X-ray diffraction test was performed for phase analysis. Hardness, wear, and dynamic potential polarization tests were performed. Results showed that the presence of CNT particles improved the hardness, tribological performance, and electrochemical behavior of the coating. Also, the presence of Sarang Semut particles acted as a barrier and protected the surface of st37 steel from corrosion. It should be noted that these particles affected the kinetics and thermodynamics of corrosion reactions and were not involved in the reactions.

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Section: Characterization Of Coatingssupporting

confidence: 62%

Ni-Cu matrix composite reinforced with CNTs: preparation, characterization, wear and corrosion behavior, inhibitory effects

Heragh

Eskandarinezhad

Dehghan

2020

jcc

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“…valves etc.) and wherever it is need to high corrosion resistance deposits [8][9][10]. All in all, an inclusion of the ceramic reinforcements into the electrodeposited Ni-based pure and alloy coatings may lead to enhanced tribomechanical and corrosion properties [11][12][13][14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Perspectives in corrosion-performance of Ni–Cu coatings by adding Y₂O₃ nanoparticles

Safavi

Fathi

Mirzazadeh

et al. 2020

Surface Engineering

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Ni-Cu alloy coatings are well-known for their favourable corrosion resistance. However, further improvement in their corrosion resistance through incorporation of reinforcing agents can open new windows of industrial applications. The main focus of this paper is on evaluating the effects of Y 2 O 3 nanoparticles inclusion on the corrosion performance of electrodeposited Ni-Cu alloy coatings. Electrochemical impedance spectroscopy (EIS), Tafel polarization, and open circuit potential (OCP) measurements were used to assess the corrosion performance of the coatings. According to the results, there is no obvious change in the phase structure of the coatings. Moreover, the surface morphology of Ni-Cu alloy coatings change from cauliflowerlike to featureless with introduction of Y 2 O 3 nanoparticles. Mapping analysis confirms the uniform dispersion of the embedded nanoparticles throughout the matrix. Ni-Cu-4 g L −1 Y 2 O 3 nanocomposite coating exhibits the most favourable corrosion performance mainly due to possessing the highest Y 2 O 3 content along with minimum microstructural defects including pores, voids and micro-cracks.

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“…XRD was used to analyze the effect of the current density on the phase structure of the nanocomposite coatings, and the results are shown in Figure 1. Only the diffraction peaks of Cu-Ni solid solution were found, and no single diffraction peaks of Cu or Ni were found, which confirmed the successful preparation of the Cu-Ni alloy coatings [37,38]. The Cu-Ni-Zn 0.96 Ni 0.02 Cu 0.02 O nanocomposite coatings showed a dominant orientation of (111), (200), and (220) reflections, indicating good crystallization.…”

Section: Phase Structurementioning

confidence: 69%

Effect of Current Density on the Corrosion Resistance and Photocatalytic Properties of Cu-Ni-Zn0.96Ni0.02Cu0.02O Nanocomposite Coatings

et al. 2023

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2 at.% Cu + 2 at.% Ni were co-doped in ZnO nanoparticles by a simple hydrothermal method, and then the modified nanoparticles were compounded into Cu-Ni alloy coatings using an electroplating technique. The effects of the current density (15–45 mA/cm2) on the phase structure, surface morphology, thickness, microhardness, corrosion resistance, and photocatalytic properties of the coatings were investigated. The results show that the Cu-Ni-Zn0.96Ni0.02Cu0.02O nanocomposite coatings had the highest compactness and the best overall performance at a current density of 35 mA/cm2. At this point, the co-deposition rate reached its maximum, resulting in the deposition of more Zn0.96Ni0.02Cu0.02O nanoparticles in the coating. More nanoparticles were dispersed in the coating with a better particle strengthening effect, which resulted in a minimum crystallite size of 15.21 nm and a maximum microhardness of 558 HV. Moreover, the surface structure of the coatings became finer and denser. Therefore, the corrosion resistance was significantly improved with a corrosion current density of 2.21 × 10–3 mA/cm2, and the charge transfer resistance was up to 20.98 kΩ·cm2. The maximum decolorization rate of the rhodamine B solution was 24.08% under ultraviolet light irradiation for 5 h. The improvement in the comprehensive performance was mainly attributed to the greater concentration of Zn0.96Ni0.02Cu0.02O nanoparticles in the coating, which played the role of the particle-reinforced phase and reduced the microstructure defects.

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Tensile Properties of Electrodeposited Nanocrystalline Ni-Cu Alloys

Cited by 23 publications

References 36 publications

Ni-Cu matrix composite reinforced with CNTs: preparation, characterization, wear and corrosion behavior, inhibitory effects

Ni-Cu matrix composite reinforced with CNTs: preparation, characterization, wear and corrosion behavior, inhibitory effects

Perspectives in corrosion-performance of Ni–Cu coatings by adding Y₂O₃ nanoparticles

Effect of Current Density on the Corrosion Resistance and Photocatalytic Properties of Cu-Ni-Zn0.96Ni0.02Cu0.02O Nanocomposite Coatings

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Tensile Properties of Electrodeposited Nanocrystalline Ni-Cu Alloys

Cited by 23 publications

References 36 publications

Ni-Cu matrix composite reinforced with CNTs: preparation, characterization, wear and corrosion behavior, inhibitory effects

Ni-Cu matrix composite reinforced with CNTs: preparation, characterization, wear and corrosion behavior, inhibitory effects

Perspectives in corrosion-performance of Ni–Cu coatings by adding Y2O3 nanoparticles

Effect of Current Density on the Corrosion Resistance and Photocatalytic Properties of Cu-Ni-Zn0.96Ni0.02Cu0.02O Nanocomposite Coatings

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Perspectives in corrosion-performance of Ni–Cu coatings by adding Y₂O₃ nanoparticles