Forming Limit of Electrodeposited Nickel Coating in the Left Region

2006 ◽  
Vol 15 (3) ◽  
pp. 287-294 ◽  
Author(s):  
L.Q. Zhou ◽  
Y.P. Li ◽  
Y.C. Zhou
Keyword(s):  
Nickel Coating ◽  
Forming Limit ◽  
Electrodeposited Nickel ◽  
Left Region

Electrodeposited Nickel Coating Reinforced with Chlorophyll‐Reduced Graphene Oxide

2021 ◽  
Author(s):  
Saptarshi Das ◽  
Swastika Banthia ◽  
Jhimli Sarkar Manna ◽  
Debajyoti Palai ◽  
Srijan Sengupta
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Nickel Coating ◽  
Reduced Graphene ◽  
Electrodeposited Nickel

Tribological Properties of Ni/Cu Multilayers

2007 ◽  
Vol 561-565 ◽  
pp. 2451-2454 ◽  
Author(s):  
Tomoya Hattori ◽  
Yoshihisa Kaneko ◽  
Satoshi Hashimoto
Keyword(s):  
Layer Thickness ◽  
Sliding Wear ◽  
Nickel Coating ◽  
Copper Substrate ◽  
Total Thickness ◽  
Individual Layer ◽  
Hardness Tests ◽  
Plastic Deformation Process ◽  
Electrodeposited Nickel ◽  
20 Nm

Sliding wear and hardness tests in Ni/Cu multilayers electrodeposited on polycrystalline copper substrate were carried out. The multilayers had a total thickness of 5 μm and an individual layer thickness from 5 to 100 nm. Hardness of the multilayers measured with a nanoindentation tester was found to be dependent on layer thickness. The multilayer with the layer thickness of 20 nm showed the highest value among them. It was found that the wear resistances of all the multilayers tested were higher than that of an electrodeposited nickel coating. It was also revealed that the specific wear rate of multilayers decreased with decreasing the layer thickness although the highest hardness was attained at the 20 nm layer thickness. Scanning ion microscope observation showed that the subsurface area kept the layered structure of nickel and copper even after sliding wear. The multilayer had plasticity sufficient to accommodate deformation coming from the sliding wear, because fine grains peculiar to severe plastic deformation process were formed near the worm surface.

Wear behavior of electrodeposited nickel coating on ZP5 zinc alloy

2020 ◽  
Vol 234 (10) ◽  
pp. 1291-1302
Author(s):  
Dario Croccolo ◽  
Massimiliano De Agostinis ◽  
Stefano Fini ◽  
Giorgio Olmi ◽  
Robusto Francesco ◽  
...  
Keyword(s):  
Coating Thickness ◽  
Applied Load ◽  
Nickel Coating ◽  
Wear Behavior ◽  
Zinc Alloy ◽  
Corrosive Environment ◽  
Statistical Tool ◽  
Aisi 304 ◽  
Electrodeposited Nickel ◽  
Sliding Distance

Nickel coating on zinc alloy is quite promising for the achievement of an additional wear improvement in corrosive environment. To investigate this point, block-on-ring tests were carried out. Blocks measuring 5 × 5×20 mm3 were obtained from real locking components, made of ZP5 EN 12844 and coated by Zn/Cu1Ni5s ISO 1458. As counter material, an AISI 304 with a 40 mm diameter cylindrical geometry was used. Three load levels (5, 10 and 15 N) and three coating thickness levels (low: 5 to 10 µm; medium: 10 to 15 µm; high: 15 to 20 µm) were considered. The sliding distance was initially set to 500 m. Then, since the coating was worn out very quickly during the test, the sliding distance was set to 150 m. The results, in terms of volume loss due to wear, were processed using the statistical tool of two-way ANOVA and Fisher test. It was assessed that the wear rate is strongly affected by the applied load. The coating thickness does not significantly affect the wear.

Statistical analysis of electrodeposited nickel coating to S275JR grade mild steel

2021 ◽  
Author(s):  
S. Govindan ◽  
M. Boopathi ◽  
A.P. Venkatesh ◽  
T. Maridurai ◽  
T. Sathish ◽  
...  
Keyword(s):  
Statistical Analysis ◽  
Mild Steel ◽  
Nickel Coating ◽  
Electrodeposited Nickel

Residual Stress and Stress-Strain Relationship of Electrodeposited Nickel Coatings

2005 ◽  
Vol 9 ◽  
pp. 21-30 ◽  
Author(s):  
Yi Chun Zhou ◽  
Y.P. Jiang ◽  
Y. Pan
Keyword(s):  
Residual Stress ◽  
Laser Beam ◽  
Thermal Shock ◽  
Nickel Coating ◽  
Strain Curve ◽  
Stress Strain ◽  
Nickel Coatings ◽  
Strain Relationship ◽  
Electrodeposited Nickel ◽  
Relationship Of

The uniform nickel coatings on substrate of low carbon steel were prepared by an electrodeposition method. The residual stress in the electrodeposited nickel coating was measured by X-ray diffraction (XRD). It was tensile when the coating was not treated. Laser beam thermal shock was used to modify the mechanical properties of the nickel coating. Laser beam thermal shock could redistribute the residual stress in the nickel coating. The residual stress could be converted from tensile to compressive. A tensile method to determine the stress-strain curve of the coating is proposed where the stress-strain relationship of the substrate without coating was determined for the specimen loaded by an applied tensile force.

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