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.
Highlights
Nowadays, almost every engineering field is facing the problem of protecting the machinery from different types of damage or failures [1]
The present research aims to study the erosion of pump materials used in the thermal power plant’s slurry transport system which conveys fly ash
The reason behind the increase of erosion wear with speed is that the particles’ kinetic energy is directly associated with the speed of the propeller shaft
Summary
Almost every engineering field is facing the problem of protecting the machinery from different types of damage or failures [1]. The protection of various industrial machines, equipment, and systems is recognized by many engineers, researchers, and scientists. It requires a high level of process-based understanding that involves in the economic solution of such failure problems. The degradation processes are found to be more aggressive for pump materials in hydraulic slurry conditions than other forces. The selection of materials is an essential part of controlling erosion wear. In the different Industries, the solids extracted by slurry pumps are unique in terms of nature [4,5,6,7]
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