Open AccessParametric Optimization of Electroless Ni-P coatings using Taguchi method
Author(s) -
Subhasish Sarkar,
Rishav Kumar Baranwal,
Rajat Sen,
B. Oraon,
Siddhartha Mukherjee,
Gautam Majumdar
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/653/1/012001
Subject(s) - sodium hypophosphite , taguchi methods , scanning electron microscope , materials science , surface roughness , nickel , hypophosphite , optical microscope , surface finish , analytical chemistry (journal) , orthogonal array , metallurgy , composite material , chemical engineering , chromatography , chemistry , layer (electronics) , electroplating , engineering
The present work deals with surface roughness characteristics of electroless Ni-P coatings. The optimised process parameters have been determined based on L27 Taguchi Orthogonal array. Bath concentration of nickel sulphate, concentration of sodium hypophosphite and temperature of bath has been considered as variable in this study. The optimum combinations of process parameters and surface roughness have been considered as response variable of the study. It has been found that 24 g/L of Nickel Sulfate, 25 g/L of Sodium Hypophosphite and 80°C temperature gives the minimum surface roughness of the Ni-P coated sample which was 0.23µm. Characterisation of the substrate and the as deposited samples were done by scanning electron microscope (SEM) and optical microscopy for surface morphology, energy-dispersive X- ray analysis (EDAX) for element analysis and X-ray diffraction for phase analysis.