Titanium is widely used in petroleum, chemical industry, salt making, etc. Pharmaceutical, metallurgy, electronics, aviation, aerospace, Marine and other related fields.
Titanium is a metal with strong passivation tendency. It can quickly generate a stable oxidizing protective film in air and oxidation or neutral aqueous solution. Even if the film is damaged for some reasons, it can recover quickly and automatically. Therefore, titanium has excellent corrosion resistance in oxidizing and neutral medium.
Due to the great passivation properties of titanium, in many cases the corrosion of heterogeneous metals may be accelerated rather than accelerated when it comes into contact with them. For example, in low concentration non-oxidizing acids, if Pb, Sn, Cu or Monel alloy contact with titanium to form an electric couple, the corrosion of these materials will be accelerated, but the titanium will not be affected. In hydrochloric acid, titanium and low carbon steel contact, because the titanium surface produced new hydrogen, destroyed the titanium oxide film, not only caused hydrogen embrittlement of titanium, but also accelerated the corrosion of titanium, which may be due to titanium has high activity to hydrogen.
The iron content in titanium has an effect on the corrosion resistance of some media. Besides the reason of raw materials, the reason for the increase of iron is often the infiltration of stained iron into the weld bead during welding, which increases the local iron content in the bead. At this time, the corrosion has the non-uniform property. When using iron to support titanium equipment, it is almost inevitable that iron contamination on the contact surfaces of iron and titanium will accelerate corrosion in iron contamination areas, especially in the presence of hydrogen. When mechanical damage occurs to the titanium oxide film on the stained surface, hydrogen will permeate into the metal. According to the temperature, pressure and other conditions, hydrogen diffusion occurs accordingly, which causes different degrees of hydrogen embrittlement of titanium. Therefore, the use of titanium in medium temperature and pressure and hydrogen containing systems should avoid surface iron contamination.
Titanium is very resistant to corrosion in hydrocarbons, even when containing acid and chloride impurities. Therefore, titanium is also widely used in organic chemical industry, such as PTA (refined terephthalic acid), PVA (Vinylon fiber) and so on. Titanium has excellent corrosion resistance in seawater, so it is widely used in offshore oil drilling platform, seawater desalination and other Marine fields.
Titanium material is divided into: titanium plate. Titanium rod. Titanium wire. Titanium mesh. Titanium workpiece.
From the base sponge titanium, after melting, forging, all kinds of titanium base materials.