Comparative Study of Slurry Erosion Behaviour on SS304 and SS202 in a Slurry Erosion Test Pot Rig under Different Operating Parameters
- March 31, 2018
- Posted by: RSIS
- Category: Mechanical Engineering
International Journal of Research and Scientific Innovation (IJRSI) | Volume V, Issue III, March 2018 | ISSN 2321–2705
S.Surya, K.M.Eazhil, S.Rishikesh, R.Satheesh Raj, R.Venkatesh
Department of Mechanical Engineering, SNS College of Engineering, Coimbatore, Tamil Nadu, India
Abstract- A slurry erosion wear problem occurs generally in transportation of solid liquid mixtures, pumps, hydro turbines, petroleum extraction well. In this project test samples of stainless steel (304) and stainless steel (202) were casted and their slurry erosion behaviours were statically studied by using slurry pot tester machine. Study of slurry erosion is important as it adversely affects the useful life and performance of the equipment handling slurries such as heat exchangers, pumps etc. The main objective of the present study is to find the effect of change in operating parameters on erosion wear of sample subjected to sand-water slurry. The main operating parameters which are examined are molarity and slurry concentration. Experiments are conducted in nine sets with three combinations of particle velocity, slurry concentration and molarity. The erosion of the samples was measured by mass loss of the materials. In this study the design of experiments was considered using Taguchi technique. A comparison has been made for the experimental and Taguchi technique results.
Keywords-slurry erosion, ss304, ss202, speed
I. INTRODUCTION
In the contemporary industrial world, fluidpower, particularly the hydraulics branch of it, is a magic world for energy transmission. The major elements used in hydraulics systems are pumps,valves,pipes, etc. These elements play a major role in power transmission and controls. In the passage of time, these components undergo erosion and corrosion and leads to the fatigue failure.Erosion-corrosion dominates the overall failure of the materials of many components, such as pumps, valves, coupling, etc., which encounter high velocity of acidic and alkaline flow. Erosion is a physical phenomenon of degradation process. Ductile erosion occurs when the impacting particles cause severe localized plastic strain on the material. Material removal occurs when the strain to the failure of the deformed material is exceeded. However, brittle mode of erosion damage of material is based on cracking, fragmentation, and removal of flakes. Slurry Erosion is a complex phenomenon which influenced by the factors, such as flow field parameters, target material properties, and erodent particle characteristics.
