Abstract
A robust and fast non-transferred plasma torch method was employed for developing coating of alumina (A2O3) and alumina/graphene oxide (A2O3/GO) on mild steel. Micro Raman analysis of GO confirms its spectroscopic behavior. The energy band gap of GO was determined as 3.44 eV. The successful coating formation of A2O3 and A2O3/GO (0.5 wt%) on mild steel was confirmed by X-ray diffraction analysis. Microhardness of mild steel was found to increase about 43.75% after coating with A2O3/GO (0.5 wt%) composite. The microstructure of A2O3/GO (0.5 wt%) coated mild steel represents better quality of coating and improved structural behavior. Mild steel becomes more corrosive resistance by reduction of corrosion potential (less negative than −0.05 V) after A2O3/GO (0.5 wt%) coating on it.
Sign-in/Register to access full text options 
Free) 
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
