Study the Effect of Eco-Friendly Fluxes on Hot Dip Galvanizing Process
Jay Gandhi, Hrushikesh Sangamnerkar, Mr.Sunil D.Kahar, Prof.K.B.Pai *
Metallurgical & Materials Engineering Department.
Faculty of Tech. & Engg., Kalabhavan, M.S. University of Baroda.
*Director ITM Universe, Halo Road. Vadodara,
Ex. Dean Faculty of Tech. & Engg. Kalabhavan Vadodara
In today’s world corrosion is a major cause of damaging the materials and so Steel surfaces need to be protected from the adverse effects of the environment and the most common method among them is “Galvanizing”. In galvanizing , the fluxes used are not only provide good barrier protection and also improve wet ability of the material surfaces , but the main problem with the conventional fluxes is that, it emits harmful gases like ammonia which is hazardous to nature and human health, as well as it will increase consumption of zinc.
In the present research work, Zinc coating on low steel sheets has been developed by mean of galvanizing process with varying the different types of Eco-friendly fluxes and conventional fluxes to study its effect on the corrosion performance & other physical properties of zinc coatings. Quality of this galvanized steel is characterized by AC impedance spectroscopy. Coating thickness was determine by coating thickness gauge while adhesively of coating were find out by bend test. Corrosion performances of coating was determined by potentio-dynamic test using Potentiostat Gammry Reference 600 & Salt spray test. Results of various testing shows that coating developed using conventional fluxes has good physical properties & corrosion resistance with compare to eco-friendly fluxes, while coating developed using combination of 50 % conventional flux & 50 % eco-friendly flux has good adherent, uniform and high corrosion resistant coating with compare to all other combination.
Please join StudyMode to read the full document