Jet electrodeposition with movable, flexible friction on quality of nanocrystalline nickel coatings

The principles of jet electrodeposition orientated by rapid prototyping were introduced. The nanocrystalline nickel parts with simple shape were fabricated using jet electrodeposition. The microstructure and phase transformation of nanocrystalline nickel were observed under the scanning microscope and X-ray diffraction instrument. The results show that the jet electrodeposition can greatly enhance the limited current density, fine crystalline particles and improve deposition quality. The nickel parts prepared by jet electrodeposition own a fine-grained structure (average grain size 25.6nm) with a smooth surface and high dimensional accuracy under the optimum processing parameters.

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Electrodeposited Nanocrystalline Nickel Parts

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.201-202.1102 ◽

2012 ◽

Vol 201-202 ◽

pp. 1102-1105

Author(s):

Jin Song Chen ◽

Jian Ming Yang

Keyword(s):

Rapid Prototyping ◽

Dimensional Accuracy ◽

Processing Parameters ◽

Nanocrystalline Nickel ◽

Fine Grained ◽

Average Grain Size ◽

Machined Parts ◽

Jet Electrodeposition ◽

Fine Grained Structure ◽

Metallic Parts

The principles of jet electrodeposition orientated by rapid prototyping were introduced , The nanocrystalline nickel parts with simple shape were fabricated using jet electrodeposition oriented by rapid prototyping. The microstructure and phase transformation of nanocrystalline nickel were observed under the scanning microscope and X-ray diffraction instrument . The results show that the successful fabrication of metallic parts demonstrates the potential of the jet electrodeposition process for prototyping technology . The jet electrodeposition can greatly enhance the limited current density, fine crystalline particles and improve deposition quality. The nickel parts prepared by jet electrodeposition own a fine-grained structure( average grain size 25.6nm) with a smooth surface and high dimensional accuracy under the optimum processing parameters..The dimensional accuracy as well as the surface quality of metallic parts and tools manufactured using jet electrodeposition techniques still lag far behind those of conventionally machined parts.

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Comparison of anodic dissolution, surface brightness and surface roughness of nanocrystalline nickel coatings with conventional decorative chromium coatings

Journal of Applied Electrochemistry ◽

10.1007/s10800-009-9940-0 ◽

2009 ◽

Vol 39 (12) ◽

pp. 2489-2496 ◽

Cited By ~ 15

Author(s):

P. Najafi Sayar ◽

M. E. Bahrololoom

Keyword(s):

Surface Roughness ◽

Anodic Dissolution ◽

Surface Brightness ◽

Nanocrystalline Nickel ◽

Nickel Coatings

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Effect of Electroplating Parameters on Microstructure of Nanocrystalline Nickel Coatings

Journal of Material Science and Technology ◽

10.1016/s1005-0302(10)60013-8 ◽

2010 ◽

Vol 26 (1) ◽

pp. 82-86 ◽

Cited By ~ 74

Author(s):

A.M. Rashidi ◽

A. Amadeh

Keyword(s):

Nanocrystalline Nickel ◽

Nickel Coatings

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Effect of Pulse Electrodeposition on Properties of Nanocrystalline Nickel Coatings

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.829.410 ◽

2013 ◽

Vol 829 ◽

pp. 410-415 ◽

Cited By ~ 1

Author(s):

Mohammad Reza Sanaeian ◽

Farzad Nasirpouri

Keyword(s):

Growth Direction ◽

Nanocrystalline Nickel ◽

Corrosion Resistant ◽

Nickel Coatings ◽

Corrosion Evaluation ◽

Watts Bath ◽

Naoh Solution ◽

Hardness Values ◽

Pc Method ◽

Deposition Conditions

In this work, nanocrystalline nickel coatings were electrodeposited from a Watts bath using direct (DC) and pulsed (PC) current. Effect of deposition conditions on the morphology, hardness, grain size, surface roughness and corrosion resistance of nickel coatings were investigated. Ni films deposited by PC method exhibited greater hardness values and smaller crystallite size compared to those deposited by DC method. A preferential crystallographic orientation or texture was found in the nickel films depending upon the electrodeposition pulse shape, as it is polycrystalline in the DC electrodeposited films, while exhibit <111> crystallographic growth direction for PC method. Corrosion evaluation results showed that the PC electrodeposited nanocrystalline Ni films have higher corrosion resistant compared to those deposited with the DC method in 2 mol/liter NaOH solution.

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