Experimental Analysis of Erosion Wear of Pipeline Material (SS-430) With and Without Coating
Abstract
In Indian hydro power stations, the slurry erosion is a severe issue specifically for those projects that are located in the hilly area. To resolve this problem a research has been conducted to optimize the erosion wear using slurry pot tester. In this research, an optimization of erosion wear analysis using Taguchi approach for slurry impeller material is provided. SS 430 is used as a test sample and the effect of erosion has been examined by varying the rotation speed, particle concentration, duration and particle size. The experiment has been performed on Particle concentration of (45%,60%,75%,95%) particle size of (75 µm 100 µm 150 µm 200 µm), and time of experiment (60s,90s,145s,210s). To test the efficiency of the material SS 430 experiments has been performed withboth uncoated and protective material. The coating on the target material is applied using a well-known High-Velocity Oxygen-Fuel (HVOF) spray process by depositing Cr and Al2O3 in 60: 40 ratios of thickness 160 to 350 µm. The influence of the slurry erosion wear has been examined on the SS 430 material by performing Taguchi approach. From the experiments, it is concluded that a substantial enhancement in the resistance of erosion wear has been examined by depositing CrAl2O3 coating. The parameters that affects the erosion wear of SS 430 material are obtained in an order of time >rpm >concentration >particle size. The means of signal-to-noise ratio of stainless steel SS430 with and without coating vary from 18.69 to 18.50and from 32.34 to 32.17 respectively.
