Study on Solid Particle Erosion of Pump Materials by Fly Ash Slurry using Taguchi’s Orthogonal Array

Authors

• Jashanpreet Singh Mechanical Engineering Department, Thapar Institute of Engineering and Technology, Patiala 147004, Punjab, India
• Satish Kumar Department of Mechanical Engineering, National Institute of Technology, Jamshedpur 831014, Jharkhand, India
• S.K. Mohapatra Mechanical Engineering Department, Thapar Institute of Engineering and Technology, Patiala 147004, Punjab, India

DOI: https://doi.org/10.30678/fjt.97530

Keywords:

Erosion wear, slurry erosion, pump materials, slurry pump, design of experiments

Abstract

Various grades of stainless steel are used to fabricate the pump impeller, casings, and seals used in heavy-duty erosion and corrosion conditions. In the present study, stainless steel (SS316L, SS304, SDSS2507) and grey cast iron used in the fabrication of heavy-duty pump impellers were taken for the analysis of solid particle erosion. Experiments were conducted on the lab-scale slurry pot tester. Fly ash slurry was prepared of different concentrations (wt%). Taguchi’s orthogonal array is used to design the experiments of erosion wear for the variation of rotational speed, solid concentration, time, and particle size. Results showed that SS316L showed superior microhardness and wear behavior against the fly ash slurry followed by SS304, SDSS2507 and Grey cast iron.