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Effect of electroplating temperature on microstructure, corrosion, and wear behavior of Ni-P-W-TiO2 coating

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Title Effect of electroplating temperature on microstructure, corrosion, and wear behavior of Ni-P-W-TiO2 coating
 
Creator Sadeghi, Sajjad
Ebrahimifar, Hadi
 
Subject Ni-P-W-TiO2 coating
Temperature
Potentiodynamic polarization
Electrochemical impedance spectroscopy
Wear resistance
 
Description 108-115
Nickel-phosphorus-titanium oxide coating is fabricated on the AISI 304L steel substrate using the electroplating method. Electroplating is performed at temperatures of 55°C, 60°C, and 65°C, and the effect of electroplating temperature on microstructure, corrosion behavior, and wear behavior is investigated. The coatings are characterized using scanning electron microscopy (SEM). In order to investigate corrosion resistance, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) tests are performed in a 3.5% NaCl aqueous solution. A pin-on-disk test is employed to investigate the wear resistance of uncoated and coated samples. Sample micro-hardness is also measured by the Vickers hardness test. The results of potentiodynamic polarization and EIS tests show that the coating created at the temperature of 60°C has the highest corrosion resistance (7058 Ω.cm2) compared with the samples coated at temperatures of 55°C (2115 Ω.cm2) and 65°C (2289 Ω.cm2). Moreover, the results of the wear and micro-hardness test show that the composite coating formed at the temperature of 60°C has the highest wear resistance and micro-hardness (677 Vickers) compared with the samples coated at temperatures of 55°C (411 Vickers) and 65°C (536 Vickers).
 
Date 2022-04-06T09:30:16Z
2022-04-06T09:30:16Z
2022-02
 
Type Article
 
Identifier 0975-1017 (Online); 0971-4588 (Print)
http://nopr.niscair.res.in/handle/123456789/59465
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJEMS Vol.29(1) [February 2022]