Abstract
The present work adopts friction stir processing to process stainless steel (SS304) with cobalt-chromium-iron-copper-titanium and aluminium-silicon-beryllium-titanium-vanadium high entropy alloy and analyse its erosion performance. The processed samples with cobalt-chromium-iron-copper-titanium and aluminium-silicon-beryllium-titanium-vanadium display refined grain structure with uniform distribution of the reinforced high entropy alloys. The microhardness for the sample with cobalt-chromium-iron-copper-titanium is 22.1% better than the aluminium-silicon-beryllium-titanium-vanadium. The slurry jet erosion test conducted through different process parameters revealed 90° impingement angle and 10 m s−1 impact velocity with 10 wt% slurry concentration on the processed sample with cobalt-chromium-iron-copper-titanium offered better erosion resistance. Oblique angle endured high erosion rate due to the ploughing effect of abrasive erodent than normal angle deforming the surface. Increasing velocity increased the erosion rate by increased material removal. Slurry concentration forms a cloud-like layer at higher concentrations lowering the erosion rate. The subsequent microstructural evaluation showed the failure mode through the formation of platelets, micro-cuts, ploughing and plastic deformation.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call