COMPARISON OF WEAR AND HARDNESS BEHAVIOR OF NiP - NiPWS2 COATINGS
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Keywords:
Ni-P Coatings, Ni-P-WS2 Coatings, Electrodeposition Coatings, Wear Resistance, FrictionAbstract
Wear resistance is a critical factor in various industries where components are subjected to
friction, wear and abrasion. In this paper, we investigate the fabrication and characterization of nickel
phosphorus (Ni-P) and nickel-phosphorus-tungsten disulfide (Ni-P-WS2) electroplating coatings, with a
particular focus on wear resistance and hardness properties. The focus of this work is to investigate the
wear resistance properties and investigate whether the hardness decreases or increases with the addition of
WS2 particles of these coatings and evaluate their potential in various applications. In the study, 2 different
coatings, Ni-P and Ni-P-WS2, were produced. In addition to the Ni-P-WS2 bath, WS2 particles were added
at a concentration of 0.1 g/L. The current density was 18 A/dm2 and the stirring speed, pH and temperature
were kept constant. The obtained samples were characterized by scanning electron microscopy (SEM) and
X-ray diffraction (XRD) analysis and the tribological behavior of the produced electrocoatings was studied.
The results show that the incorporation of WS2 nanoparticles into Ni-P coatings imparts excellent
tribological properties to the coating by combining the hardness and wear properties of Ni-P with the
lubricating properties of WS2 , further reducing friction and wear and increasing hardness. In this case, the
benefits of Ni-P and Ni-P-WS2 coatings can be utilized in a wide range of industries. In the automotive
sector, these coatings can be applied to engine components such as pistons, connecting rods and crankshafts
to increase their durability and reduce friction.
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