The corrosion resistance of titanium titanium alloy wire

The corrosion resistance of titanium can be titanium and titanium alloys have a high degree of stability in a neutral or weakly acidic solution of an oxide, for example, at 100 ℃ CuC12 FeCl100 ℃ in, HgC1 100 ℃ of titanium and surgical implant titanium‍  (all concentrations), all concentrations of NaCl 60% and 100 ℃ AlCl2 are stable in many other metal oxides of titanium, and a 100% oxygen at 100% acetic acid and acetic acid in dioxane is stable, and therefore titanium and titanium alloy has been widely used in the solution.

Titanium and titanium-containing solution to ion-oxidants also have a high degree of stability, such as a sodium hypochlorite solution 100qC, oxygen, water, gas (up to 75 ℃), sodium hydroxide solution containing hydrogen peroxide and so on.

Titanium and titanium alloys in the wet chlorine gas corrosion resistance than other common metals, this is because with a strong oxidizing action of chlorine, titanium and titanium alloys can be in wet chlorine stable passive state, in order to maintain the chlorine in the titanium obtuse nature, requires a certain moisture content. Critical moisture and oxygen pressure, flow rate, temperature and other factors, but also with the shape and size of titanium and titanium equipment or machinery parts related to the degree of damage to the surface, therefore, the literature on critical water content of titanium in oxygen titanium wire‍ passivation is inconsistent is generally believed that the mass fraction of 0.01% to 0.05% titanium in oxygen as the critical water content, but the actual experience that in order to ensure the safe use of titanium equipment in oxygen, and sometimes the water mass fraction of 0.6% also enough, requiring up to 1.5%. Critical water content also varies with temperature and air velocity chlorine decrease increase accordingly.

Actual operating experience also shows that the surface oxide film of titanium and titanium alloys destroyed, titanium whole distributor‍ requiring a higher water content in order to make re-passivation of titanium and titanium alloys.