Development of novel corrosion resistant electroless NI-P composite coatings for pipeline steel

In this research, coatings with various particles contents will be co-deposited within Ni–P deposits on AISI 1012 steel samples by electroless coating process. As a result, structural changes were evaluated, surface and cross-section morphology of composite deposits have been investigated by scanning electron microscopy (SEM), volumetric percentage of co-deposited particles have been determined using EDS analysis system, corrosion resistance of various EN coatings and current density were studied through potentiodynamic polarization, and mechanical properties were evaluated using wear and nano-indentation tests. The results showed that Alumina can give the best compromise between surface smoothness and deposition rate, Titanium can reach the highest levels of volumetric incorporation whereas Carbon can improve further lubrication effect on wear action, finally hardness and corrosion behavior had the best results with the existence of Alumina.

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Tribological Properties of Al2O3 Particles Reinforced Ni-P Composite Coating

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.739.148 ◽

2017 ◽

Vol 739 ◽

pp. 148-151

Author(s):

Chih I Hsu ◽

Kung Hsu Hou ◽

Ming Der Ger

Keyword(s):

Wear Resistance ◽

Composite Coating ◽

Composite Coatings ◽

Deposition Process ◽

Xrd Analysis ◽

X Ray Diffraction ◽

Heat Treated ◽

Composite Deposits ◽

Electroless Ni ◽

Improve Wear Resistance

In this study, hardness and wear resistance of electroless Ni–P and Ni–P/Al2O3 composite coating have been investigated. These composite coatings are applied on iron substrate by electroless deposition process and then they were heat treated at 400°C for 1h. Surface and cross-section morphology of composite deposits have been investigated by scanning electron microscopy (SEM) and microstructural changes were evaluated by X-ray diffraction (XRD) analysis. The results showed that the Al2O3 particles co-deposited in Ni–P matrix led to an increase in the hardness and improve wear resistance, especially when the heat treated at 400°C will have the maximum hardness and wear resistance.

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Indentation and bending behavior of electroless Ni-P-Ti composite coatings on pipeline steel

Surface and Coatings Technology ◽

10.1016/j.surfcoat.2017.10.074 ◽

2018 ◽

Vol 334 ◽

pp. 243-252 ◽

Cited By ~ 19

Author(s):

Chuhong Wang ◽

Zoheir Farhat ◽

George Jarjoura ◽

Mohammad K. Hassan ◽

Aboubakr M. Abdullah

Keyword(s):

Pipeline Steel ◽

Composite Coatings ◽

Bending Behavior ◽

Electroless Ni

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Ultrasonic-Assisted Electroless Coating of Ni-B Alloy and Composites on Aluminum Alloy Substrates

Materials Science Forum ◽

10.4028/www.scientific.net/msf.830-831.687 ◽

2015 ◽

Vol 830-831 ◽

pp. 687-690 ◽

Cited By ~ 1

Author(s):

Jerin K. Pancrecious ◽

J.P. Deepa ◽

R. Ramya ◽

T.P.D. Rajan ◽

E. Bhoje Gowd ◽

...

Keyword(s):

Nickel Coating ◽

Composite Coatings ◽

Electroless Nickel ◽

Properties Of Coatings ◽

Electroless Coating ◽

Corrosion Resistant ◽

Uniform Coating ◽

Ultrasonic Assisted ◽

Improved Performance ◽

Increasing Demand

Electroless nickel coating is one of the versatile methods to improve the physical properties of aluminium alloys. The increasing demand for high corrosion resistant surface with improved performance leads to the development of poly-alloy and composite coatings with the aid of ultrasonication. In the present study Ni-B alloy and Ni-B-CeO2 composite coatings were made on 356 aluminium alloy surfaces. The variation in structural and mechanical properties of coatings formed under both ultrasonication and magnetic stirring were investigated. Surface analysis by scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) has shown the formation of more uniform coating under ultrasonication. The electrochemical polarization tests show enhanced corrosion resistance in ultrasonic assisted coatings.

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Waterborne corrosion-resistant hydrophobic alkyd resin composite coatings modified with fluorinated acrylate–siloxane and submicron-sheet zinc phosphate pigment

Journal of Coatings Technology and Research ◽

10.1007/s11998-021-00493-x ◽

2021 ◽

Author(s):

Shenjie Zhong ◽

Kang Qin ◽

Yi Hou ◽

Tianqi Xu ◽

Ying Cai ◽

...

Keyword(s):

Alkyd Resin ◽

Zinc Phosphate ◽

Resin Composite ◽

Composite Coatings ◽

Corrosion Resistant ◽

Fluorinated Acrylate

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Electroless Ni–P–(nano-MoS2) composite coatings and their corrosion properties

Surface Engineering ◽

10.1179/174329408x282532 ◽

2009 ◽

Vol 25 (5) ◽

pp. 361-366 ◽

Cited By ~ 28

Author(s):

X. G. Hu ◽

W. J. Cai ◽

Y. F. Xu ◽

J. C. Wan ◽

X. J. Sun

Keyword(s):

Composite Coatings ◽

Corrosion Properties ◽

Electroless Ni

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High-Temperature Oxidation Resistance of Electroless Ni-P-ZrO2 Composite Coatings

Materials Science Forum ◽

10.4028/www.scientific.net/msf.686.569 ◽

2011 ◽

Vol 686 ◽

pp. 569-573 ◽

Cited By ~ 2

Author(s):

Ming Feng Tan ◽

Wan Chang Sun ◽

Lei Zhang ◽

Quan Zhou ◽

Jin Ding

Keyword(s):

High Temperature ◽

Carbon Steel ◽

Oxidation Resistance ◽

High Temperature Oxidation ◽

Steel Substrate ◽

Composite Coatings ◽

Low Carbon ◽

Temperature Oxidation ◽

P Matrix ◽

Electroless Ni

Electroless Ni-P coating containing ZrO2particles was successfully co-deposited on low carbon steel substrate. The surface and cross-sectional micrographs of the composite coatings were observed with scanning electron microscopy (SEM). And the chemical composition of the coating was analyzed with energy dispersive spectroscopy (EDS). The oxidation resistance was evaluated by weight gains during high temperature oxidation test. The results showed that the embedded ZrO2particles with irregular shape uniformly distributed in the entire Ni-P matrix, and the coating showed a good adhesion to the substrate. The weight gain curves of Ni-P-ZrO2composite coatings and Ni-P coating at 923K oxidation experiments were in accordance with . The ZrO2particles in Ni-P matrix could significantly enhance the high temperature oxidation resistance of the carbon steel substrate as compared to pure Ni-P coating.

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