Corrosion Resistance Of Titanium in River Water And Seawater

Titanium has excellent corrosion resistance in river water and seawater, especially in seawater, titanium's corrosion resistance is 100 times that of stainless steel, titanium is the most corrosion-resistant metal material in all natural water. Titanium in high temperature water and water vapor (such as >300 ℃) may be some discoloration or loss of light, and even a little weight, but does not cause corrosion. Titanium in the temperature up to 260 ℃ seawater is very corrosion-resistant, titanium tube condenser in the polluted seawater has been used for more than 20 years, only found a slight discoloration and no signs of corrosion.

Industrial pure titanium in seawater crevice corrosion, pitting corrosion and impact corrosion resistance are relatively good, stress corrosion and corrosion fatigue sensitivity is not serious. In the high speed flow seawater (for example, 36.6m/s), the erosion rate is somewhat increased. When the seawater contains sand and other friction particles, there is some effect on the erosion resistance of titanium, but it is not as serious as that of copper alloys and aluminum alloys. In seawater, titanium is also the most ideal material to resist cavitation corrosion. However, because titanium is neither corrosive nor toxic in seawater, it is a good place for marine organisms to attach to, which is an urgent problem to be solved in practical applications.