Synthesis and Characterization of Cr-ZrO<sub>2</sub> Composite Coating Formed by DC and Pulse Electrodeposition

Lakra, Suprabha; Maharana, H.S.; Basu, A.

doi:10.1080/10426914.2016.1151039

Cited by 18 publications

(10 citation statements)

References 26 publications

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“…Chromium thin films with exclusive super saturationed metalloid elements such as carbon or nitrogen have received wide technological interest due to their remarkable performance, such as high hardness, high elasticity modulus, good wear resistance and chemical stability under extreme conditions [1][2][3][4]. Nowadays, the most commonly used PVD coatings are chromium nitrides [5] and carbides [6].…”

Section: Introductionmentioning

confidence: 99%

Effect of annealing treatment on the microstructure, mechanical and tribological properties of chromium carbonitride coatings

Aissani

Fellah

Radjehi

et al. 2019

Surface and Coatings Technology

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Chromium nitrides were deposited by RF reactive magnetron sputtering from a Cr target on high carbon steel substrates XC100 (1.17 wt% carbon) in a N 2 and Ar gas mixture. In order to investigate the formation of chromium nitrides, carbide and carbonitride compounds were subjected to vacuum annealing treatment for 1 h at various temperatures ranging from 700 to 1000°C. The samples were characterized by EDS, XPS, XRD, SEM, nanoindentation and tribometry. The results showed the emergence of Cr 2 N and CrN during the early stages of annealing and the appearance of chromium carbonitride phases only at 900°C. The (111) preferred orientation of the fcc CrN phase was changed to (002) at 900°C in parallel with the appearance of chromium carbides. Nanoindentation tests revealed a gradual increase of the Young's modulus from 198 to 264 GPa when increasing the annealing temperature, while the hardness showed a maximum value (H = 22.4 GPa) at 900°C. The low friction coefficient of the CreCeN coating against a 100Cr6 ball was approximately 0.42 at 900°C. The enhancement of mechanical and tribological properties was attributed to the stronger bonding CreC at the CrN/ XC100 interfaces as confirmed by XPS results.

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Section: Introductionmentioning

confidence: 99%

Effect of annealing treatment on the microstructure, mechanical and tribological properties of chromium carbonitride coatings

Aissani

Fellah

Radjehi

et al. 2019

Surface and Coatings Technology

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“…When the current density was 1.5 A dm −2 , the morphology of the centre and the edge of the coating was field, the current density was suitable for the deposition at the central part, though was slightly large for the deposition of edge part. When the current density was 3 A dm −2 , as shown in Figure 4(g,h), there were obvious cracks and delamination on the coating, indicating that the current density was too large, due to which, the hydrogen evolution occurred with stress accumulation [18]. The microstructure of the metallic matrix is related to the electrodeposition method and the interactions of nucleation and crystallite growth.…”

Section: Effects Of the Deposition Parameters On The Surface Morpholo...mentioning

confidence: 99%

Characterisation and properties of Ni–W–Y₂O₃–ZrO₂ nanocomposite coating

Zhang

et al. 2019

Surface Engineering

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In this work, nickel-based composite coatings were deposited using ultrasonic electrodeposition under pulse current condition at different current densities, temperatures and concentrations of Y 2 O 3 and/or ZrO 2 dispersed in the plating solution. The morphology and electrochemical properties were investigated. The electrochemical test methods (such as chronopotentiometry, potentiodynamic polarisation and electrochemical impedance spectroscopy) were used to investigate the stability of electrode potential during deposition and the corrosion resistance of Ni-based coating reinforced using Y 2 O 3 and ZrO 2 . It was demonstrated that, when the deposition current density was 1.5 A dm −2 , the temperature was 60°C and the added amount of Y 2 O 3 and ZrO 2 nanoparticles was 10 g L −1 each, the coating was compact, stable and free of cracks. The results of electrochemical tests showed that, under the optimal deposition parameters, the deposition process was stable, while the corrosion current density decreased by an order of magnitude compared to Ni-W alloy.

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“…The Co–Cr electrodeposits can be an economic alternative for these expensive alloys [2-4]. These coatings are also a suitable substitute for hard chromium films [3,5-8]. Conventional chromium coatings were electrodeposited from Cr(VI) based electrolytes, that are toxic and carcinogenic, and should be replaced [1,3,7-11].…”

Section: Introductionmentioning

confidence: 99%

Characteristics and properties of Co–Cr alloy coatings prepared by electrodeposition

Mahdavi

Allahkaram

Heidarzadeh

et al. 2019

Surface Engineering

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Two different ways were used for preparing the electrodeposition baths. In the first bath, different concentrations of cobalt sulphate (up to 6 g L -1 ) and one complexing agent were employed. In the second bath, two different complexing agents and a constant concentration of cobalt sulphate were used. The results showed that the microstructure of the coatings was changed from amorphous to nano-crystalline by enhancing cobalt sulphate concentration in the bath No. 1. Current efficiency and thickness of the alloy coatings obtained from bath No. 2 were higher than those deposited from bath No. 1. However, reducing the bath temperature or raising the current density decreased the current efficiency, while increased Cr content and hardness of alloy coatings. The Co-29.3 wt-%Cr electrodeposit obtained from bath No. 2 at the optimum condition had better corrosion and wear resistance than Co-Cr and Cr films produced from bath 1, as well as the steel substrate.

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Synthesis and Characterization of Cr-ZrO₂ Composite Coating Formed by DC and Pulse Electrodeposition

Cited by 18 publications

References 26 publications

Effect of annealing treatment on the microstructure, mechanical and tribological properties of chromium carbonitride coatings

Effect of annealing treatment on the microstructure, mechanical and tribological properties of chromium carbonitride coatings

Characterisation and properties of Ni–W–Y₂O₃–ZrO₂ nanocomposite coating

Characteristics and properties of Co–Cr alloy coatings prepared by electrodeposition

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Synthesis and Characterization of Cr-ZrO2 Composite Coating Formed by DC and Pulse Electrodeposition

Cited by 18 publications

References 26 publications

Effect of annealing treatment on the microstructure, mechanical and tribological properties of chromium carbonitride coatings

Effect of annealing treatment on the microstructure, mechanical and tribological properties of chromium carbonitride coatings

Characterisation and properties of Ni–W–Y2O3–ZrO2 nanocomposite coating

Characteristics and properties of Co–Cr alloy coatings prepared by electrodeposition

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Synthesis and Characterization of Cr-ZrO₂ Composite Coating Formed by DC and Pulse Electrodeposition

Characterisation and properties of Ni–W–Y₂O₃–ZrO₂ nanocomposite coating