Open Access Open Access  Restricted Access Subscription or Fee Access

Slurry Erosion Behaviour of D-Gun Sprayed Cr3C2-25NiCr and WC-12Co Coatings on CA6NM Turbine Steel Material

Gurmaheshinder Singh Sandhu, Khushdeep Goyal, Deepak Kumar Goyal, Rakesh Bhatia

Abstract


In this research work, Erosive wear behaviour of hydraulic turbine material, i.e., CA6NM is investigated. The samples of alloy were coated by different powders Cr3C2-25NiCr and WC-12Co with detonation spray gun technique. Erosion tests have been conducted on self-made erosion test rig with different parameters. L9 Taguchi technique has been used for design of experiment by taking four factors viz. impact velocity, impact angle, slurry concentration and particle size. The study reveals that the impact velocity and impact angle are most significant among various factors influencing the wear rate of these coatings. After a fix time weight loss on samples are compared. This technique helps in saving time and resources for a large number of experimental trials and successfully predicts the wear rate of the coatings both within and beyond the experimental domain. In comparison, coated samples show better results in erosion than uncoated material.

Cite this Article. Gurmaheshinder Singh Sandhu, Khushdeep Goyal, Deepak Kumar Goyal et al. Slurry Erosion Behaviour of D-Gun Sprayed Cr3C2-25NiCr and WC-12Co Coatings on CA6NM Turbine Steel Material. Journal of Thin Films, Coating Science Technology and Application. 2017; 4(2): 8–17p.


Full Text: PDF

Refbacks

  • There are currently no refbacks.