Evaluation of the Diamond Particle Content in Ni-P Nano-Composite Coatings

2016 ◽  
Vol 53 (3) ◽  
pp. 144-160
Author(s):  
D. Dietrich ◽  
A. Eilert ◽  
D. Nickel ◽  
T. Lampke
Keyword(s):  
Composite Coatings ◽  
Diamond Particle ◽  
Particle Content ◽  
Nano Composite

Effects of Current Density on the Microstructure and Properties of Electrodeposited Black Cr-C Nano-Composite Coatings on Steel Substrate

2011 ◽  
Vol 687 ◽  
pp. 641-646 ◽  
Author(s):  
Xue Song Li ◽  
Yue Yang ◽  
You Yang ◽  
Hua Wu
Keyword(s):  
Composite Coating ◽  
Current Density ◽  
Steel Substrate ◽  
Composite Coatings ◽  
Scanning Electronic Microscopy ◽  
Electronic Microscopy ◽  
Particle Content ◽  
Nano Composite ◽  
X Ray ◽  
Nano Composite Coating

Eelectrodeposited black Cr-C nano-composite coating was prepared on the steel substrate and the effects of current density on the properties of the composite coating were studied in the present paper. The surface morphology and phase composition of the composite coatings were analyzed by means of scanning electronic microscopy (SEM) and X-ray diffractometer (XRD). Microhardness was determined by micrometer and the wear resistance of the coatings was evaluated by CETR using a universal materials tester (UMT). The results showed that formed under the condition of current density of 100A/dm2, temperature of 15°C, and the optimum particle content in electrolyte was 10g/l. The maximum microhardness of black Cr-C nano-composite coating was 10.8 Gpa, simutaneously, the wearing resistance of the coating improved significantly compared to the steel substrate.

Experimental investigation of electrodeposited Ni-Al2O3/ZrO2 nano composite on HSLA ASTM A860 alloy

2021 ◽  
Author(s):  
Chandrasekhara Sastry Chebiyyam ◽  
Pradeep N ◽  
Shaik AM ◽  
Hafeezur Rahman A ◽  
Sandeep Patil
Keyword(s):  
Grain Size ◽  
Corrosion Resistance ◽  
Composite Coating ◽  
Base Alloy ◽  
Composite Coatings ◽  
Nano Particles ◽  
Alloy Sample ◽  
Nano Composite ◽  
Nano Coating ◽  
Nano Composite Coating

Abstract Nano composite coatings on HSLA ASTM A860 alloy, adds to the barrier efficacy by increase in the microhardness, wear and corrosion resistance of the substrate material. Additionally, reduction of delamination of the nano composite coating sample is ascertained. Ball milling is availed to curtail the coating samples (Al2O3/ZrO2) to nano size, for forming a electrodeposited product on the substrate layer. The curtailment in grain size was ascertained to be 17.62% in Ni-Al2O3/ZrO2 nano composite coating. During the deposition process, due to the presence of Al2O3/ZrO2 nano particles an increase in cathode efficiency is ascertained. An XRD analysis of the nano composite coating indicates a curtailment in grain size along with increase in the nucleation sites causing a surge in the growth of nano coating layer. In correlation to uncoated HSLA ASTM A36 alloy sample, a surge in compressive residual stress by 47.14%, reduction of waviness by 32.14% (AFM analysis), upsurge in microhardness by 67.77% is ascertained in Ni-Al2O3/ZrO2 nano composite coating. Furthermore, in nano coated Ni-Al2O3/ZrO2 composite a reduction is observed pertaining to weight loss and friction coefficients by 27.44% and 13% in correlation to plain uncoated alloy respectively. A morphology analysis after nano coating indicates, Ni-Al2O3/ZrO2 particles occupy the areas of micro holes, reducing the wide gaps and crevice points inside the matrix of the substrate, enacting as a physical barrier to upsurge the corrosion resistance by 67.72% in correlation to HSLA ASTM A860 base alloy.

Fabrication and corrosion behavior of Si/HA nano-composite coatings on biodegradable Mg–Zn–Mn–Ca alloy

2014 ◽  
Vol 258 ◽  
pp. 1090-1099 ◽  
Author(s):  
H.R. Bakhsheshi-Rad ◽  
E. Hamzah ◽  
M. Daroonparvar ◽  
M.A.M. Yajid ◽  
M. Medraj
Keyword(s):  
Corrosion Behavior ◽  
Composite Coatings ◽  
Nano Composite

Mechanical and anticorrosive properties of copper matrix micro- and nano-composite coatings

2009 ◽  
Vol 54 (9) ◽  
pp. 2540-2546 ◽  
Author(s):  
M. Lekka ◽  
D. Koumoulis ◽  
N. Kouloumbi ◽  
P.L. Bonora
Keyword(s):  
Composite Coatings ◽  
Copper Matrix ◽  
Nano Composite

scholarly journals Microstructure and properties of Cu-Sn-Zn-TiO2 nano-composite coatings on mild steel

2018 ◽  
Vol 350 ◽  
pp. 801-806 ◽  
Author(s):  
Weidong Gao ◽  
Di Cao ◽  
Yunxue Jin ◽  
Xiaowei Zhou ◽  
Guang Cheng ◽  
...  
Keyword(s):  
Mild Steel ◽  
Composite Coatings ◽  
Nano Composite ◽  
Microstructure And Properties

Cr 6+ reduction in welding fumes by nano composite coatings on stainless steel manual metal arc welding electrodes

2018 ◽  
Vol 114 ◽  
pp. 334-346 ◽  
Author(s):  
Vishnu B.R. ◽  
Sivapirakasam S.P. ◽  
Satpathy KK ◽  
Shaju K. Albert ◽  
Gopa Chakraborty
Keyword(s):  
Stainless Steel ◽  
Arc Welding ◽  
Composite Coatings ◽  
Welding Fumes ◽  
Nano Composite ◽  
Metal Arc Welding

scholarly journals Development of TiN-Si3N4 Nano Composite Coatings for Wear Resistance Applications

1995 ◽  
Vol 05 (C5) ◽  
pp. C5-831-C5-840 ◽  
Author(s):  
A. G. Dias ◽  
J. H. van Breda ◽  
P. Moretto ◽  
J. Ordelman
Keyword(s):  
Wear Resistance ◽  
Composite Coatings ◽  
Nano Composite
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