Articles
  • Experimental investigation and optimization of pulse electrodeposition parameters for Ni-TiO2 coating on Inconel 617 using TOPSIS technique

  • D.R. Joshuaa,* and A. Jeganb

  • aDepartment of Mechanical Engineering, AVS Engineering College, Salem-636003, Tamil Nadu, India.
    bDepartment of Mechanical Engineering, Sona College of Technology, Salem-636005, Tamil Nadu, India

  • This article is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The quality of nano coating and its strength are purely influenced by deposition parameters. Pulse electrodeposition is a promising technique for material coating. Inconel 617 is a widely used alloy in high temperature and aerospace applications. Considering wide range of its applications, study of micro hardness and surface roughness of Inconel 617 is essential. This research deals with optimization of coating parameters in pulse electrodeposition of Ni-TiO2 on Inconel 617. Both, single and multi-objective optimization techniques are selected, with input design of L9 orthogonal array. Pulse frequency, duty cycle and current density are the input parameters. Micro hardness and surface roughness were determined from Coated Inconel 617. TOPSIS technique is adopted to improve micro hardness and surface roughness. Based on the experimental results, Micro hardness of 474 Hv and surface roughness of 0.412 µm are achieved with remarkable improvement in closeness coefficient value from 0.4475 to 0.913. SEM analysis is carried out to ensure the surface quality. Moreover EDAX and XRD test to identify the presence of coating material


Keywords: Inconel 617, Ni-TiO2 Coating, Pulse Electrodeposition, Surface roughness, Hardness and TOPSIS

This Article

  • 2022; 23(1): 69-78

    Published on Feb 28, 2022

  • 10.36410/jcpr.2022.23.1.69
  • Received on Oct 9, 2021
  • Revised on Nov 17, 2021
  • Accepted on Nov 27, 2021

Correspondence to

  • D.R. Joshua

  • Department of Mechanical Engineering, AVS Engineering College, Salem-636003, Tamil Nadu, India.
    Tel : +7200008770

  • E-mail: joshuamec@gmail.com