Where are titanium and titanium materials used?

Titanium and its alloys have many excellent characteristics, such as light weight, high strength, strong heat resistance and corrosion resistance. They are called future metals, and they are a new type of structural materials with broad prospects. Titanium and its alloys are not only very important in aviation and aerospace industry, but also widely used in many industrial sectors such as chemical industry, petroleum, light industry, metallurgy and power generation. Application of titanium in chemical industry and other departments Another notable feature of titanium is its strong corrosion resistance, which is due to its great affinity for oxygen, and it can form a dense oxide film on its surface to protect titanium from medium corrosion. In most aqueous solutions, metallic titanium can form a passive oxide film on the surface. Therefore, titanium has good stability in acidic, alkaline and neutral salt solutions and oxidation media, and its corrosion resistance is better than that of existing stainless steel and other non-ferrous metals, even comparable to that of platinum. However, if the oxide film on the surface of titanium can be dissolved continuously in a certain medium, titanium will be corroded in this medium. For example, titanium is in hydrofluoric acid, concentrated hydrochloric acid or hot hydrochloric acid, sulfuric acid and phosphoric acid. Because these solutions dissolved the oxide film on the surface of titanium, titanium was corroded. If oxidants or some metal ions are added to these solutions, the oxide film on the surface of titanium will be protected and the stability of titanium will be increased. Titanium for chemical industry has good stability in various acid, alkali and salt media, except the above four inorganic acids and highly corrosive aluminum chloride. Therefore, titanium is an excellent corrosion-resistant material in the chemical industry and has been widely used. For example, the use of titanium anode and titanium wet chlorine cooler in chlor-alkali industry has achieved good economic benefits and is known as a great revolution in chlor-alkali industry. Titanium in petroleum industry is very stable in organic matter, except for five organic acids (formic acid, acetic acid, oxalic acid, trichloroacetic acid and trifluoroacetic acid) with relatively high temperature. Therefore, titanium is an excellent structural material in petroleum refining and petrochemical industry, which can be used to manufacture various heat exchangers, reactors, high-pressure vessels and distillation columns. Titanium is an active metal in metallurgical industry, which has good gettering performance and is an excellent degasser in steelmaking industry. It can combine oxygen and nitrogen separated from steel during cooling. Adding a small amount of titanium (