Experimental investigation on corrosion behavior of friction surfaced mild steel with aluminum alloy 5083-Cadmium composite

The effect of friction surfacing on mild steel substrate using aluminium alloy 5083-Cadmium composite is investigated at corrosive environment. Friction surfacing process is carried out on the mild steel substrate using the modified lathe setup. Friction surfaced samples are subjected to heat treatment at 100, 150 and 200 °C to analysis the effect of heat treatment. Corrosion specimens are prepared and subjected to immersion and pitting test as per the standard. The results are analyzed by using weight loss method and the samples are examined using Scanning Electron Microscope. The corrosion results confirm that the friction surfaced mild steel has higher corrosion resistance than the mild steel substrate and heat treated friction surfaced samples. The corrosion rate is higher in low pH solution due to its acidic nature. When comparing the corrosion rate among the heat treated and untreated coated samples, the unheated friction surfaced samples are having low corrosion rate as compared to the heat treated.