DefinePK

Abstract

Coating Technology is the material Technology of the 21st century, because, thermal spraying as an important tool for study the Surface Engineering Technology. In the present research work, the conventional Boron carbide(B4C) powder particles of grain size 105 micrometer, and Micrometer sized Boron Carbide were blends with 1%, 2%, 3% of nano sized (44-55x10-9) boron carbide powder particles were sprayed on commercially available, Grit blasted 410 grade steel using High Velocity oxy Fuel Technique. Vickers micro hardness tester was used to measure the Hardness values on surface of the coated and Un-coated substrates. Worn surface morphologies were observed in SEM. The presence of elements boron and carbide particles are confirmed in EDX spectrum analysis. As per ASTM G99, Pin-On-Disc tribometer was used to study the Tribological behavior of these Coatings. It was confirmed from the results, increasing the blending of % of nano powders, enhance the good hardness and Wear resistance compared to Micro B4C coated and Un-coated Steel substrates.