The Influence of Current Strength and Electrode Type on the Corrosion Rate of Low Carbon Steel in SMAW Welding

Abstract

Wooden ships predominantly relied on wood materials and wind as their primary means of propulsion. However, wooden ships had one significant drawback: they could not move without the assistance of wind and sails. This limitation could not meet the increasing human demand for speed and efficiency. Therefore, as technology and knowledge advanced, the use of wood for ships began to be abandoned in favor of metal and engine-powered systems. The research will be conducted in a mechanical engineering workshop and will last for three months. Based on the results of tests conducted on the data obtained, the following conclusions can be drawn: The electrode current significantly affects the corrosion rate in SMAW welding, A current of 100 A produces the highest corrosion rate, with a corrosion rate of 0.08508 mm/y using the E 6013 electrode and 0.08061 mm/y using the E 7016 electrode, A current of 120 A produces a moderate corrosion rate, with a corrosion rate of 0.07508 mm/y using the E 6013 electrode and 0.06880 mm/y using the E 7016 electrode, A current of 140 A produces the lowest corrosion rate, with a corrosion rate of 0.06428 mm/y using the E 6013 electrode and 0.05881 mm/y using the E 7016 electrode.