Preparation and wear resistance of electrodeposited Ni–W/diamond composite coatings

Hou, Kung-Hsu; Han-TaoWang,; Sheu, Hung‐Hua; Ger, Ming-Der

doi:10.1016/j.apsusc.2014.04.175

Cited by 127 publications

(49 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At the same time, the tungsten content in Ni-W/ZrO 2 coatings decreases gradually from 50 wt.% to 43 wt.% with the increase of zirconia concentration from 5 g/L to 30 g/L in the plating bath. A similar effect was observed for electrodeposited Ni-W/Al 2 O 3 and Ni-W/diamond composite coatings [14,41]. An increase of ZrO 2 composite content at a high particle bath concentration may be caused by the impact of hydrodynamics (RDE under ultrasonicated conditions) or additional particle adsorption at sites that were not accessible at low particle concentration [33].…”

Section: Effect Of Ceramic Particle Concentrationsupporting

confidence: 70%

Ni–W/ZrO2 nanocomposites obtained by ultrasonic DC electrodeposition

et al. 2015

View full text Add to dashboard Cite

Section: Effect Of Ceramic Particle Concentrationsupporting

confidence: 70%

Ni–W/ZrO2 nanocomposites obtained by ultrasonic DC electrodeposition

et al. 2015

View full text Add to dashboard Cite

“…On the other side, the auto industry needs ternary alloys for excellent wear, corrosion and abrasion resistant surfaces. Inclusion of hard particles like oxides, carbides, ceramics and insoluble powders in NiP coatings were attempted [10]- [12] and found increases the hardness and wear resistance. Successful co-deposition of the included particle depends on size distribution [13], bath composition and inert nature of the particle.…”

mentioning

confidence: 99%

Influence of Nano Al2O3 Particles on the Adhesion, Hardness and Wear Resistance of Electroless NiP Coatings

Karthikeyan¹,

Vijayaraghavan²

2015

IJMMM

View full text Add to dashboard Cite

Abstract-In this present study electroless NiP coatings and NiP-Al 2 O 3 coatings had been deposited on a mild steel substrate. The surface morphology of both the coatings had studied using scanning electron microscope (SEM), energy dispersive spectroscopy (EDS) and X-ray diffraction technique. Adhesion, hardness and wear behavior were investigated and compared for NiP and NiP-Al 2 O 3 coatings. Optical micrograph images were used for the evaluation of adhesion of coatings which found sufficient and acceptable according to VDI 3198 standard. Hardness of the coating had been evaluated based on depth sensing techniques and substrate effect had avoided by maintaining depth to coating thickness ratio less than 0.1. Due to co-deposition of Al 2 O 3 particles the hardness of NiP coatings increased by 20.5% (7.8 GPa to 9.4 GPa). Dry sliding wear tests were conducted on PLINT TE66 micro scale tester against steel ball of hardness 800 HV. Wear resistance of NiP coatings increased with increase in sliding distance. The co-deposition of Al 2 O 3 particles in NiP matrix arrest the deformation during sliding of steel ball and thus wear resistance of NiP-Al 2 O 3 coatings is superior to NiP coatings. Wear crater morphology were studied using SEM and EDS. Adhesive wear mechanics was observed in NiP coatings and combination of adhesive and abrasive wear mechanism were found in NiP-Al 2 O 3 coatings.

show abstract

“…The anti-wearing performance of the Ni-SiO 2 composite coatings was estimated from the weight loss of the coatings ( Fig. 3) [45]. The wearing weight loss of Ni-SiO 2 composite coatings prepared in the absence of surfactant as well as in the presence of CTAC and ALES is shown in Table 3.…”

Section: Microhardness and Wear Studymentioning

confidence: 99%

Effects of organically modified nanoclay on cellular morphology, tensile properties, and dimensional stability of flexible polyurethane foams

2013

View full text Add to dashboard Cite

This article presents a method for the electrochemical preparation of a coating of nickel-silica nanocomposites on a carbon steel substrate. The incorporation of hydrophilic silica particles into the Ni composite coating during co-electrodeposition is so difficult due to the small size and the hydrophilicity of SiO 2 particle, generally less than 2 v% of silica is incorporated into the composite at different current densities, agitation speeds and silica concentrations. The effect of the presence of four surfactants, namely cocamidopropyl betaine (CAPB), decylglycoside (DG), cetyltrimethyl ammonium chloride (CTAC) and ammonium lauryl ether sulfate (ALES), on overcoming this problem was investigated in this research, and the surfactants were found to greatly influence the surface charge of silica, silica incorporation percentage and the microstructure of the composite. In fact, upon increasing the internal stresses, the products prepared in the presence of CAPB and DG were found to crack to some degree. CTAC was found to lead to entrapment mode silica co-deposition in the Ni coating. Furthermore, the addition of ALES into an electrolyte bath negatively supercharged silica surfaces and increased silica dispersion, which led to a dramatic increase in the silica incorporation percentages to around 14 v%. The results showed that Ni-SiO 2 composites prepared in the presence of ALES had better corrosion resistance, hardness and wear properties.

show abstract

Preparation and wear resistance of electrodeposited Ni–W/diamond composite coatings

Cited by 127 publications

References 42 publications

Ni–W/ZrO2 nanocomposites obtained by ultrasonic DC electrodeposition

Ni–W/ZrO2 nanocomposites obtained by ultrasonic DC electrodeposition

Influence of Nano Al2O3 Particles on the Adhesion, Hardness and Wear Resistance of Electroless NiP Coatings

Effects of organically modified nanoclay on cellular morphology, tensile properties, and dimensional stability of flexible polyurethane foams

Contact Info

Product

Resources

About