Composite Ni/Al2O3 coatings and their corrosion resistance

Szczygieł, B.; Kołodziej, Małgorzata

doi:10.1016/j.electacta.2005.01.040

Cited by 261 publications

(127 citation statements)

References 23 publications

Supporting

Mentioning

122

Contrasting

Order By: Relevance

“…The influence of the applied current density values on the particle content in the coating and, consequently, on the coating properties, is the most reported parameter in the literature 5,7,[9][10][11]19,21 . Additionally, it was verified that the use of continuous (DC) or pulsed 16 current influenced on the anticorrosive performance of composite coatings 22 .…”

Section: Introductionmentioning

confidence: 99%

“…In general, if the stirring speed is slow, it prevents the dispersion of the particles, allowing their aggregation and precipitation. Additionally, slow stirring speed values are not able to carry all of the particles to the cathode 7,19 . On the other hand, if the stirring speed is quite fast, the particles do not have enough time to be trapped into the coating, resulting in a lower incorporation of particles 19 and in the removal of those that are not completely adsorbed on the cathode 19,26,27 .…”

Section: Introductionmentioning

confidence: 99%

“…The influence of the deposition parameters, such as current density, the concentration of particles in the bath, the stirring of the suspension, the solution pH and temperature and the bath composition, on the electro co-deposition process and on the properties of the coating has been investigated by several works [6][7][8]19,20 . The influence of the applied current density values on the particle content in the coating and, consequently, on the coating properties, is the most reported parameter in the literature 5,7,[9][10][11]19,21 .…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Electrodeposition of Composite Coatings of Cu/AlO(OH) Using Allyl Alcohol as an Additive

et al. 2017

View full text Add to dashboard Cite

In this work, composite coatings of Cu/AlO(OH) were produced by electrodeposition on steel substrates using a pyrophosphate-based bath containing allyl alcohol as an additive. The electrodeposition of the composite coatings was carried out using a 2³ central composite design (CCD), aiming to verify the effects of the deposition parameters (previous stirring time (t), the stirring speed (S) and the current density (j)), considered the entry variables, on the electrochemical behavior of Cu/AlO(OH) coating, the response variables of the CCD. The results indicated that a decrease of the parameters j and S directly influenced the values of R p and R ct , leading to the production of protective coatings. The best result (R p = 211 Ω and R ct = 221 Ω) was obtained under conditions where t = 120 min, S = 1300 rpm and j = 7 A m -2 . Dispersed bohemite particles could be noted on the surface of the composite coating.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Electrodeposition of Composite Coatings of Cu/AlO(OH) Using Allyl Alcohol as an Additive

et al. 2017

View full text Add to dashboard Cite

show abstract

“…The method of coelectrodeposition has presented more advantageous compared to other coating methods, due to greater ease in continuous processing, their use in parts with complex geometry, no application of high pressure, productivity in processing, homogeneity of layer deposited and low residue generation during processing [10][11]. Coelectrodeposition is an effective method for producing www.ijert.org composite metal coatings containing metallic and non metallic particles to provide gains in tribological properties and corrosion resistance [12].…”

Section: Introductionmentioning

confidence: 99%

Effect of Nickel-Niobium Coating on Fatigue Resistance of SAE 1020 Carbon Steel

Lacerda¹,

Teixeira²,

Signoretti³

et al. 2017

IJERT

View full text Add to dashboard Cite

-Effect of nickel-niobium coating by electrodeposition on the fatigue resistance of SAE 1020 carbon steel is studied in this work. The nickel-niobium coating was performed using a nickel Watts bath with added niobium powder. The specimens for fatigue tests were taken from SAE 1020 steel bar with 7.94mm (5/16 '') diameter. The fatigue tests were carried out by rotary bending load control with loading balance. It employed a rotation speed of approximately 1500rpm (25Hz). Vickers microhardness tests were performed on steel and deposited layer of nickel-niobium. Analysis of the electroplated layer connection interface in the steel and fatigue fractures were performed by scanning electron microscopy (SEM). The fatigue tests were performed in order to obtain S-N curves (Wöhler curves). It was observed that nickel-niobium coating gave only a tendency to increase the fatigue strength of the steel, although the coating layer has shown high hardness compared to the steel. The detachment of the deposited nickelniobium layer was regarded as the main cause of noncontribution of the increase in fatigue limit coated steel compared to the same in its original condition.

show abstract

“…For nickel electoplating, Watts bath is most commonly used [1,[9][10][11][12]. It consists of the three basic components: nickel sulphate, nickel chloride and boric acid.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Dispersion Phases of SiC and Al2O3 on the Properties of Galvanic Nickel Coatings

Kozik

Nowak

Gawlik

et al. 2016

Archives of Metallurgy and Materials

View full text Add to dashboard Cite

In this study, Ni, Ni-SiC and Ni-Al2O3 coatings were electroplated on the 2xxx series aluminium alloy. The following parameters of the electroplating process were applied: current density -4A/dm 2 , time -60 minutes, and temperature -60°C. Hard particles of submicrometric size were used. The results of the research showing the effect of the addition of hard particles (introduced into the nickel bath as a dispersed phase) on the properties of coatings, including the effect of the type (SiC or Al2O3) and content (0, 25, 50 g / l) of these particles, were discussed. Based on extensive investigations, it was found that the type of ceramic particles significantly affects the structure of produced coatings. The dispersed particles incorporated into the nickel coatings improve their abrasion resistance. Improving of the corrosion properties were observed only in the case of coatings containing silicon carbide particles.

show abstract

Composite Ni/Al2O3 coatings and their corrosion resistance

Cited by 261 publications

References 23 publications

Electrodeposition of Composite Coatings of Cu/AlO(OH) Using Allyl Alcohol as an Additive

Electrodeposition of Composite Coatings of Cu/AlO(OH) Using Allyl Alcohol as an Additive

Effect of Nickel-Niobium Coating on Fatigue Resistance of SAE 1020 Carbon Steel

The Effect of Dispersion Phases of SiC and Al2O3 on the Properties of Galvanic Nickel Coatings

Contact Info

Product

Resources

About