Microstructure and corrosion behavior of electrodeposited Ni-based nanocomposite coatings reinforced with Ni 60 Cr 10 Ta 10 P 16 B 4 metallic glass particles

Bahrami, Farzaneh; Amini, Rasool; Taghvaei, Amir Hossein

doi:10.1016/j.jallcom.2017.04.069

Cited by 22 publications

(6 citation statements)

References 55 publications

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“…Here A is the surface area from the R-HTNWs and µ is the detection efficiency (~80%) of the LEAP 5000 XS 44…”

Section: γ 1mentioning

confidence: 99%

“…Therefore, this single-step method, without the electrophoresis step, is simpler than the previously reported two-step electrodeposition method 20 . The electrodeposition depends strongly on the surface heterogeneity 44,45 . In our case, we observed protrusions on the co-electrodeposited Ni surface, which was indicative of the presence of the embedded nanowires (see Figure S3).…”

Section: Characterization Of R-htnws Using Aptmentioning

confidence: 99%

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Atomic‐Scale Mapping of Impurities in Partially Reduced Hollow TiO₂ Nanowires

et al. 2020

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The incorporation of impurities during the chemical synthesis of nanomaterials is usually uncontrolled and rarely reported because of the formidable challenge in measuring trace amounts of often light elements with sub‐nanometer spatial resolution. And yet, these foreign elements (introduced by doping, for example) influence functional properties. We demonstrate how the hydrothermal growth and a partial reduction reaction on hollow TiO2 nanowires leads to the introduction of parts per millions of boron, sodium, and nitrogen. This doping explains the presence of oxygen vacancies and reduced Ti states at the surface, which enhance the functional properties of TiO2. Our results were obtained on model metal oxide nanomaterials and they shed light on a general process that leads to the uncontrolled incorporation of trace impurities in TiO2, thereby, having a strong effect on applications in energy‐harvesting.

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“…Here A is the surface area from the R-HTNWs and µ is the detection efficiency (~80%) of the LEAP 5000 XS 44…”

Section: γ 1mentioning

confidence: 99%

Section: Characterization Of R-htnws Using Aptmentioning

confidence: 99%

Atomic‐Scale Mapping of Impurities in Partially Reduced Hollow TiO₂ Nanowires

et al. 2020

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“…Multiple diffusion-driven phenomena are developed during heat treatment such as crystallisation, grain boundaries formation, grain boundary migration, grain growth, Ni 3 P and other Ni-P intermetallic phase precipitations. 11,48 In addition, these coatings were heat treated in air; therefore an oxide layer was produced on the surface of these coatings, which also smooths their surfaces.…”

Section: Surface Morphology Of the Coatingsmentioning

confidence: 99%

Study of the effect of pulse plating parameters on the electrodeposition of NiP and NiP/SiC coatings and their microhardness values

Ahmadkhaniha

Tsongas

Tzetzis

et al. 2021

Transactions of the IMF

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This study is focused on finding optimised conditions for electrodeposition of NiP and NiP/SiC coatings, which enhance the coatings' microhardness. Both the effect of particles and the effect of heat treatment at 400°C for 1 h on the microhardness of the coating were studied. The effects of pulse electrodeposition parameters including duty cycle, frequency, and peak current density on the composition of NiP and NiP/SiC composite coatings were examined, and the results were compared with those from direct current plating. Pulse plating increased the current efficiency of NiP deposition while decreasing the phosphorus content of these coatings in comparison to direct plating, resulting in higher microhardness values. It was also shown that wt.%P in NiP coating depends not only on peak current density but also on bath charge of pulse plating. Pulse plating parameters (duty cycle and frequency) and the low incorporation of SiC particles did not affect microstructure or the microhardness of the coatings, while heat treatment was the main factor that increased microhardness.

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“…In recent years, a growing interest has been attracted to apply bulk metallic glasses (BMGs) as the bipolar plates in the proton exchange membrane fuel cells [1][2][3]. A wide range of properties from corrosion resistance to fexural strength is needed for considering a material as a bipolar plate [4][5][6]. Among a broad spectrum of alloy compositions in the glassy systems, Ni-based BMGs are promising alloys with excellent corrosion resistance, which can be employed as bipolar plates in the proton exchange membrane fuel cells [7,8].…”

Section: Introductionmentioning

confidence: 99%

Improving the Corrosion Resistance of NiNb-Based Bulk Metallic Glass through the Hot Compression

Anazi

Ramírez‐Coronel

Obaid

et al. 2023

Advances in Materials Science and Engineering

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This paper aims to study and evaluate the corrosion resistance of Ni55Nb45 and Ni55Nb35Co5Zr5 bulk metallic glasses (BMGs) in an environment similar to proton exchange membrane fuel cells. Moreover, the hot compression process was carried out to find the effects of a thermomechanical treatment on the corrosion resistance. The X-ray diffraction (XRD) test indicated that the hot compression process led to formation of crystalline species in both samples; however, it was more pronounced in the Ni55Nb35Co5Zr5 alloy. It is suggested that the minor addition of Zr and Co facilitated the crystallization in the material. The polarization test unveiled that the hot compression deteriorated the corrosion resistance of the Ni55Nb45 alloy through the introduction of anomalous chemical interfaces. On the other hand, the hot deformation affected the Ni55Nb35Co5Zr5 alloy in a positive way, so that the corrosion behavior improved compared with its fully glassy state. It is suggested that the hot deformation induces some NiNb crystalline constituencies in the microstructure of Ni55Nb35Co5Zr5 BMG, leading to the enrichment of glassy matrix from Zr/Co constituencies and the enhancement of corrosion resistance.

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Microstructure and corrosion behavior of electrodeposited Ni-based nanocomposite coatings reinforced with Ni 60 Cr 10 Ta 10 P 16 B 4 metallic glass particles

Cited by 22 publications

References 55 publications

Atomic‐Scale Mapping of Impurities in Partially Reduced Hollow TiO₂ Nanowires

Atomic‐Scale Mapping of Impurities in Partially Reduced Hollow TiO₂ Nanowires

Study of the effect of pulse plating parameters on the electrodeposition of NiP and NiP/SiC coatings and their microhardness values

Improving the Corrosion Resistance of NiNb-Based Bulk Metallic Glass through the Hot Compression

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Microstructure and corrosion behavior of electrodeposited Ni-based nanocomposite coatings reinforced with Ni 60 Cr 10 Ta 10 P 16 B 4 metallic glass particles

Cited by 22 publications

References 55 publications

Atomic‐Scale Mapping of Impurities in Partially Reduced Hollow TiO2 Nanowires

Atomic‐Scale Mapping of Impurities in Partially Reduced Hollow TiO2 Nanowires

Study of the effect of pulse plating parameters on the electrodeposition of NiP and NiP/SiC coatings and their microhardness values

Improving the Corrosion Resistance of NiNb-Based Bulk Metallic Glass through the Hot Compression

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Product

Resources

About

Atomic‐Scale Mapping of Impurities in Partially Reduced Hollow TiO₂ Nanowires

Atomic‐Scale Mapping of Impurities in Partially Reduced Hollow TiO₂ Nanowires