Why is titanium alloy rod easy to catch fire after alkali washing？

Alkaline cleaning of titanium alloy rods is easy to catch fire, especially the alkali cleaning of titanium sheets is more likely to catch fire. The chemical activity of titanium alloy rods in lye, when alkaline washing in lye containing oxidants, the overall lye temperature is too high or the local temperature is too high are the reasons for the combustion of titanium. The research of titanium rod manufacturers shows that due to the potential difference between titanium and steel tools in lye, there is a galvanic effect. When titanium and steel are in contact, a galvanic current is formed, and the smaller the contact point, the greater the current. The excessive current density of the titanium alloy causes local overheating, so that the titanium alloy rod often starts to burn from the contact point of the two metals.