The HVOF coatings have high hardness, low oxidation, high abrasion resistance, high erosion-corrosion resistance, high wear resistance, low porosity, high density, superior bond strength, thick coating, fine finishing capability and lower oxide content. Particle heating is more uniform and efficient due to the high turbulence experienced by the particles within the combustion chamber. Further the particles have much shorter exposure time in flight due to high particle velocities. The present study is an attempt to evaluate the elevated temperature corrosion behaviour of HVOF sprayed...

Electrical discharge machining (EDM) is one of the most widely disseminated manufacturing technologies, in particular as regards the generation of accurate and complex geometrical shapes on hard metallic components. Nevertheless, current EDM has major limitations when dealing with fine surface finish and material removal rate. Recently EDM with powder mixed dielectric (PMEDM) has been a focus of intense research work in order to overcome these technological performance barriers. The present study is done with an objective to modify the machining characteristics like surface roughness,...