Fabrication and characterization of Ni–Zr composite coatings using electrodepositing technique

Cai, Fei; Jiang, Chuanhai; Zhang, Zhongquan; Muttini, Enzo; Fu, Peng; Zhao, Yuantao; Ji, Vincent

doi:10.1016/j.jallcom.2015.02.076

Cited by 28 publications

(6 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The incorporation of graphene particles and the microstructure changes of Ni deposits significantly enhanced the corrosion resistance of the Ni-Cr-graphene coatings. Firstly, the addition of graphene particles brought about further crystallite refinement and the a diminution of the [200] texture of Ni deposits in the Ni-Cr-graphene coatings compared to the Ni and Ni-Cr coatings, reducing rapid corrosion paths and facilitating the formation of a passivation film [34,35]. Secondly, the graphene particles worked as "physical barriers" in the corrosion paths to hinder the spread of the corrosion [36].…”

Section: Discussionmentioning

confidence: 99%

Roles of Graphene Additives in Optimizing the Microstructure and Properties of Ni–Cr–Graphene Coatings

Meng

Shi

et al. 2020

Coatings

View full text Add to dashboard Cite

The electrodeposition technique was used to fabricate graphene and Cr particle-reinforced Ni–Cr–graphene coatings. The Rietveld refinement was utilized to analyze the microstructure of Ni deposits in the coatings. The properties including micro-hardness and corrosion behaviors of the coatings were also tested. Results showed that the addition of graphene particles contributed to the dendrite like structure on the surface of the Ni–Cr–graphene coating. The crystallite size and [200] texture of the Ni deposits in the Ni–Cr–graphene coatings were significantly decreased by the graphene particles. The crystallite size of 149.8 nm in the Ni-25–Cr-0–graphene coating was reduced to 35 nm in the Ni-25–Cr-8–graphene coating due to the addition of 8 g/L graphene to the electrolyte. The microstructure evolution of the Ni–Cr–graphene coatings brought about an enhancement in micro-hardness and corrosion resistance of the coatings. The micro-hardness of the coatings was improved from 260.1 HV0.2 of the pure Ni coating to 285.9 HV0.2 of the Ni-25–Cr-0–graphene coating and continually to 461.8 HV0.2 of the Ni-25–Cr-8–graphene coating. In corrosion solution (3.5 wt.% NaCl), the corrosion current (6.22 μA/cm2) of the Ni-25–Cr-0–graphene coating could be decreased by about an order of magnitude through the addition of graphene particles, which was 0.33 μA/cm2 for the Ni-25–Cr-8–graphene coating.

show abstract

Section: Discussionmentioning

confidence: 99%

Roles of Graphene Additives in Optimizing the Microstructure and Properties of Ni–Cr–Graphene Coatings

Meng

Shi

et al. 2020

Coatings

View full text Add to dashboard Cite

show abstract

“…Besides, as mentioned above, the Mo 2 NiB 2 ceramic phases led to the grain refinement of the {FeM} phases. The decreased grain sizes of the {FeM} phases could lengthen the corrosion path and then reduced the corrosion rate of the coating [26]. Therefore, the formation of the Mo 2 NiB 2 phases and the {FeM} phases enhanced the corrosion resistance of the Mo 2 NiB 2 cermet coatings.…”

Section: Discussionmentioning

confidence: 99%

“…Herein, the decreased grain sizes of {FeM} phases were the double-edged sword to the corrosion resistance of the coatings. The decreased grain sizes could increase the possibility of the corrosion occurring at the grain boundary, which decreased the corrosion resistance of the coating prepared at Mo:B ratio of 1 [21,22,26].…”

Section: Discussionmentioning

confidence: 99%

Investigation on Microstructure, Hardness, and Corrosion Resistance of Mo–Ni–B Coatings Prepared by Laser Cladding Technique

Wang

Zhao

et al. 2019

Coatings

Self Cite

View full text Add to dashboard Cite

The hard and corrosion resistant coatings of Mo 2 NiB 2 cermet were prepared by the laser cladding technique. The influences of the Mo:B ratio and the laser scanning speed on the microstructure and property of the Mo 2 NiB 2 cermet coatings were investigated. The results showed that the laser scanning speed of 1.5 mm/s and the Mo:B ratio of 1 were more beneficial to the formation of Mo 2 NiB 2 cermet than 2.0 mm/s and 0.8, 1.2, respectively. The amount of the Mo 2 NiB 2 ceramic phases were decreased from the top layer to the bottom layer of the coating. The changes of microstructure and composition led to the changes of hardness and corrosion resistance of the Mo 2 NiB 2 cermet coatings. The coating prepared at the Mo:B ratio of 1 and the scanning speed of 1.5 mm/s possessed the highest hardness, and the hardness gradually decreased from the top layer to the bottom layer of the coating. The formation of Mo 2 NiB 2 and {FeM} phases led to the enhanced corrosion resistance of the Mo 2 NiB 2 cermet coatings, and the coating prepared at the Mo:B ratio of 0.8 possessed the best corrosion resistance and the minimum corrosion current.al. [1,10,12] also prepared Mo 2 NiB 2 cermet by reaction boronizing sintering and found that the TRS and hardness of the Mo 2 NiB 2 cermet were 2.35 GPa and 84.5 HRA, respectively. Plus, the addition of Cr and V elements further enhanced the TRS, hardness, and corrosion resistance of the Mo 2 NiB 2 cermet. Besides the reaction sintering method, other methods like high-velocity oxy-fuel (HVOF), plasma spraying, detonation gun spraying and laser cladding, etc., can also provide high energy for the reactive synthesis of Mo 2 NiB 2 cermet coatings [15][16][17][18][19]. Nonetheless, each method has its own characteristics, which induces the significantly different effects of the methods on the Mo 2 NiB 2 cermet coatings. Among these synthesis methods, the laser cladding technique possesses superior properties like environmental friendship, good artificial controllability, high efficiency and energy, and convenience [20]. Thus, the laser cladding technique is the desirable and excellent method to fabricate the Mo 2 NiB 2 cermet coatings, which has been applied in the preparation of the Mo 2 NiB 2 cermet coatings. Hu et al. [14] prepared the Mo 2 NiB 2 (M 3 B 2 ) cermet coatings by laser cladding and found that the pretreatment and re-melting afterwards could greatly affect the microstructure and properties of the coatings. Wu et al. [13] found that laser cladding fabricated Mo 2 NiB 2 cermet coatings possessed high hardness, good wear and corrosion resistance. However, these works mainly focused on the preparation and property characterization of Mo 2 NiB 2 cermet coatings, and how the laser cladding parameters influenced the property were not deeply discussed. Therefore, the comprehensive investigations on the influences of the laser cladding process on the microstructure and property of Mo 2 NiB 2 cermet coatings are quite needed, which is beneficial for widening the application of Mo 2 NiB 2...

show abstract

“…Zirconia nanoparticles have high thermal stability, and can be used as a reinforcement material to improve mechanical and thermal properties [17][18][19]. Moreover, zirconia nanoparticles have been shown to interact strongly with rGO sheets, and blends of these two materials can be used to create 3D interconnected composites, with high porosity [20].…”

Section: Introductionmentioning

confidence: 99%

One-step electrodeposited 3D-ternary composite of zirconia nanoparticles, rGO and polypyrrole with enhanced supercapacitor performance

et al. 2017

View full text Add to dashboard Cite

Supercapacitor electrodes consisting of conjugated polymers (CP), metal oxides and graphene nanosheets have been explored as a strategy to achieve high specific capacitance, power, energy density, and stability. In this work, we synthesized a 3D structure composed of zirconia oxide nanoparticles (ZrO 2), reduced graphene oxide (rGO) and polypyrrole (PPy), using a simple and easily scalable one-step chronoamperometry method. Detailed characterization revealed that the addition of rGO and ZrO 2 modified the morphology of the electrode material. The capacitance of the resulting architecture improved by up to a 100%. The ternary composite featured high stability, with an increase of 5% in capacitance after a thousand cycles. DFT and MD simulations were carried out in order to provide further insight on the role of zirconia.

show abstract

Fabrication and characterization of Ni–Zr composite coatings using electrodepositing technique

Cited by 28 publications

References 33 publications

Roles of Graphene Additives in Optimizing the Microstructure and Properties of Ni–Cr–Graphene Coatings

Roles of Graphene Additives in Optimizing the Microstructure and Properties of Ni–Cr–Graphene Coatings

Investigation on Microstructure, Hardness, and Corrosion Resistance of Mo–Ni–B Coatings Prepared by Laser Cladding Technique

One-step electrodeposited 3D-ternary composite of zirconia nanoparticles, rGO and polypyrrole with enhanced supercapacitor performance

Contact Info

Product

Resources

About