Properties of electroless thick nickel–phosphorus coating on SiCp/Al composite surface in acidic conditions

Tian, Meijuan; Jian, Zengyun; Chang, Fange; Hai, Rui

doi:10.1007/s10853-022-08127-2

Cited by 15 publications

(6 citation statements)

References 48 publications

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“…The corrosion potential and current density of this sample are − 683.54 mV and 2.42 µA•cm − 2 , respectively, with a relatively large R ct of 5489 Ω•cm 2 ; these characteristics are comparable to those of amorphous Ni-P deposits [40,41]. According to the XRD and morphological data after corrosion, corrosion primarily occurs at the rims of the nodules and at the clusters of the cellular structure, and the corrosion products mainly consist of Fe 2 O 3 .…”

Section: Optimization Of Comprehensive Performancementioning

confidence: 53%

Modelling and Optimization of Electrodeposited Amorphous Fe-P Alloys Using CCC Design and RSM

Zhang,

Yu,

Liu

et al. 2024

Preprint

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In this study, central composite circumscribed (CCC) design and response surface methodology (RSM) were used to model and optimize the electrodeposition characteristics of amorphous Fe-P alloys. Based on the results of a previous single-factor experiment, the significance of the influencing factors was determined using analysis of variance (ANOVA). Three factors significantly impacting the P content, hardness and corrosion current density of a deposit were identified: the bath temperature, pH and H2PO2− concentration. The statistical relationships between the process parameters and individual responses were established based on the CCC experimental data and RSM. The optimal parameters for each response were derived, and the influences of interaction terms were investigated. A desirability function was applied to determine the sample with the optimal comprehensive performance, featuring both high hardness and low corrosion current density. Due to the complex electrodeposition mechanisms of amorphous Fe-P alloys, the predicted P contents in deposits largely deviated from the experimental contents. However, the predictions of the hardness, corrosion current density and comprehensive performance were very accurate.

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Section: Optimization Of Comprehensive Performancementioning

confidence: 53%

Modelling and Optimization of Electrodeposited Amorphous Fe-P Alloys Using CCC Design and RSM

Zhang,

Yu,

Liu

et al. 2024

Preprint

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“…In another study [13], it was affirmed that hydrazine bath outperforms the hypophosphite bath. Oxalic acid imparts better performance when assigned with suitable conditions [14]. For better adhesion strength of the coatings on the substrate, proper pH (4-5) and dip time is to be maintained [2].…”

Section: Ni Reducing Agentmentioning

confidence: 99%

Electroless Ni-P-MoS₂ composite coating of Al-alloys: effect of surface textures and bath composition

Mohanty,

Singh,

Dwivedi

et al. 2023

Phys. Scr.

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The present work assesses the effect of textures and bath composition on Ni-P-MoS2 electroless composite coating. Aluminium alloys are subjected to textures (through electrical discharge machine) for using as substrate material in the present context of study. A comparison study is conducted to evaluate the effect of coatings on textured and non-textured surfaces prepared in two different baths (oxalic acid and hydrazine). Different surface characterization has been carried out including micro-hardness, surface roughness, topography, morphology, tribology through micro-scratch test, and composition analysis (using Energy Dispersive Spectroscopy) in the study. Results indicate that the textured coated surfaces impart better wear-resistant properties than those of coatings produced in non-textured ones. Moreover, the coating prepared using oxalic acid bath imparts better micro-hardness and tribological properties than those of hydrazine bath. The elemental presence of Mo, S, Ni and P was affirmed through EDS mapping, indicates transference of MoS2 particles on to the coated surfaces. The micro-hardness of different coated specimen prepared using oxalic acid bath range from 53.55 HV0.2 to 71.31 HV0.2 for non-textured samples and 70.47 HV0.2 to 113.52 HV0.2 for textured ones. It varied from 53.68 HV0.2 to 68.85 HV0.2 for non-textured surfaces and 63.03 HV0.2 to 98.27 HV0.2 for textured surfaces in hydrazine bath. The addition of MoS2 powder in the electroless bath account for the deposition of a tribo-adaptive layer on Al-alloys.

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“…In recent years, the development of composite coatings has been an active area of research [16]. Traditional uses include composite electrodeposition, Ni-SiC or Co-WC for wear resistance, Ni-PTFE, Ni-MoS2 or Ni-WS2 for combined self-lubrication and wear resistance [14].…”

Section: Introductionmentioning

confidence: 99%

Effect of current density on the structure and tribological properties of WS2 reinforced Ni-P metal matrix composite coating produced by electrodeposition

2023

IJANSER

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2D (two-dimensional) materials have been the focus of recent material science studies. These materials are generally lamellated. Due to these physiological properties, they act as solid lubricants as antiwear in parts operating under a certain load. In this study, WS2 particles of 1 micron size were added to the Ni-P bath and Ni-P-WS2 composite coatings were produced at different current densities at the same concentration. The aim of this study is to obtain Ni-P metal matrix composites reinforced with WS2 particles on steel surfaces with high hardness and wear resistance for parts working under intense load in automobiles and aerospace vehicles and for use in anti-wear applications. In the study, WS2 particles were added to the bath at a concentration of 0.1 g/L and 3 coatings were produced at current densities of 13 A/dm 2 , 20 A/dm 2 , 26 A/dm 2 respectively. The effects of different current densities applied during the deposition process on particle distribution, hardness and wear resistance were investigated. During the electroplating process, a suitable stirring speed and a certain temperature were kept constant for the deposition of WS2 particles on the Ni-P matrix. The produced films were characterised by scanning electron microscopy (SEM) and Xray diffraction (XRD) analysis.

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Properties of electroless thick nickel–phosphorus coating on SiCp/Al composite surface in acidic conditions

Cited by 15 publications

References 48 publications

Modelling and Optimization of Electrodeposited Amorphous Fe-P Alloys Using CCC Design and RSM

Modelling and Optimization of Electrodeposited Amorphous Fe-P Alloys Using CCC Design and RSM

Electroless Ni-P-MoS₂ composite coating of Al-alloys: effect of surface textures and bath composition

Effect of current density on the structure and tribological properties of WS2 reinforced Ni-P metal matrix composite coating produced by electrodeposition

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Properties of electroless thick nickel–phosphorus coating on SiCp/Al composite surface in acidic conditions

Cited by 15 publications

References 48 publications

Modelling and Optimization of Electrodeposited Amorphous Fe-P Alloys Using CCC Design and RSM

Modelling and Optimization of Electrodeposited Amorphous Fe-P Alloys Using CCC Design and RSM

Electroless Ni-P-MoS2 composite coating of Al-alloys: effect of surface textures and bath composition

Effect of current density on the structure and tribological properties of WS2 reinforced Ni-P metal matrix composite coating produced by electrodeposition

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Electroless Ni-P-MoS₂ composite coating of Al-alloys: effect of surface textures and bath composition