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Effect of Microalloying with Ti on the Corrosion Behaviour of Low Carbon Steel in a 3.5 wt.% NaCl Solution Saturated with CO2

Sheikh Ali R.

Archives of Foundry Engineering

2023

Vol. 23, iss. 1

5--10

A problem is defined to investigate the effect of titanium traces on the corrosion behaviour of low carbon steel. In theory titanium effects surface properties like abrasion resistance in medium carbon steels and corrosion resistance in low as well as medium carbon steels. The present research as indicated by the topic is aimed to experimentally mark the effect of titanium traces on corrosion resistance in the available low carbon steel specimens. The effect of microalloying with titanium (i.e.0.02wt.%) on the corrosion behavior of low carbon steel in a 3.5 wt.% NaCl solution was studied by electrochemical, SEM, and Raman spectroscopy techniques. The electrochemical results showed that the corrosion of the Ti-bearing steel improved by around 30% compared with the Ti-free steel. The titanium microalloying led to the formation of a more compact corrosion product layer on the metal surface. The SEM analysis showed that the Ti-bearing sample had a smoother surface compared with the Ti-free steel.