Name: Electroless Ni-W-P/WS2 ternary composite coatings (en Inglés)
Price: 64760.00 CLP
Availability: InStock
Author: Sudhakar, Ranganatha
ISBN: 9786139830121

portada Electroless Ni-W-P/WS2 ternary composite coatings (en Inglés)

Formato

Libro Físico

Autor

Ranganatha Sudhakar

Editorial

LAP Lambert Academic Publishing

Idioma

Inglés

N° páginas

Encuadernación

Tapa Blanda

Dimensiones

22.9 x 15.2 x 0.3 cm

Peso

0.09 kg.

ISBN13

9786139830121

Categorías

Química

Electroless Ni-W-P/WS2 ternary composite coatings (en Inglés)

Ranganatha Sudhakar (Autor) · LAP Lambert Academic Publishing · Tapa Blanda

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Origen: Estados Unidos (Costos de importación incluídos en el precio)

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Reseña del libro "Electroless Ni-W-P/WS2 ternary composite coatings (en Inglés)"

The ternary alloy Ni-W-P and its WS2 nanocomposite coatings were successfully obtained on low-carbon steel using the electroless plating technique. The sodium tungstate (Na2WO4) concentration in the bath was varied to obtain Ni-W-P deposits containing various Ni and P contents. WS2 composite was obtained with a suitable concentration of Na2WO4 in Ni-P coating. These deposits were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive X-ray analysis (EDX) studies. The corrosion behavior was investigated by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) studies in 3.5 wt % NaCl solutions, and the corrosion rates of the coatings for Ni-P, Ni-W-P, and Ni-W-P-WS2 were found to be 2.571 × 10-5, 8.219 × 10-7, and 7.986 × 10-7 g/h, respectively. An increase in the codeposition of alloying metal tungsten (W) enhanced the corrosion resistance and microhardness and changed the structure and morphology of the deposits. Incorporation of WS2nanoparticles to Ni-W-P alloy coating reduced the coefficient of friction from 0.16 to 0.11 and also helped in improving the corrosion resistance of the coating further.