Study of solid particle erosion of thermal spray coated and uncoated cobalt based superalloy

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Authors

  • M. S. Vinod kumar
     ,IN
  • R. Suresh
     ,IN
  • N. Jegadeeswaran
     ,IN

DOI:

https://doi.org/10.18311/jmmf/2021/30091

Keywords:

Erosion, surface analysis, thermal spray coating, (WC-CO NiCrBSi), superco-605

Abstract

Erosion resistance of turbine components can be improved using various thermal spray coatings techniques, in the present work HVOF spray coating technique is used to deposit tungsten carbide alloy powder composition (30%WC-CO+70% NiCrBSi) on cobalt based seperalloy Superco-605. The coating is characterized using scanning electron microscope (SEM). Solid particle erosion behaviour of coating is evaluated at 30o, 60o and 90o angle of impact at room temperature, silica sand of size 150?m is used as erodent, particle feed rate maintained is 4.8gm/min, rate of erosion and steady state volumetric erosion rate is determined and results are plotted, from the plots it is indicating that the rate of erosion for coated samples are higher compared to uncoated samples, and there is higher erosion rate at 90o angle of impact and tends to be low for impact angle of 30o indicating brittle mode of erosion.

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Published

2022-04-28

How to Cite

Vinod kumar, M. S., Suresh, R., & Jegadeeswaran, N. (2022). Study of solid particle erosion of thermal spray coated and uncoated cobalt based superalloy. Journal of Mines, Metals and Fuels, 69(12A), 31–36. https://doi.org/10.18311/jmmf/2021/30091

Issue

Volume 69, Issue 12A, December 2021

Section

Articles
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Europe PMC

 

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