The features of ferro titanium
The density of titanium is 4.51g/cm3, which is 57% of steel, titanium is less than twice as heavy and three times stronger than aluminum. The specific strength of titanium alloy (strength/density ratio) is the largest among commonly used industrial alloys (see Table 2-1), and the specific strength of titanium alloy is 3.5 times that of stainless steel, 1.3 times that of aluminum alloy, and 1.7 times that of magnesium alloy, so it is an indispensable structural material in the aerospace industry.
2. Excellent corrosion resistance
The passivity of titanium depends on the presence of an oxide film, and its corrosion resistance in oxidizing media is much better than in reducing media. High rates of corrosion occur in reducing media. Titanium is not corroded in some corrosive media, such as seawater, wet chlorine, chlorite and hypochlorite solutions, nitric acid, chromic acid, metal chlorides, sulfides and organic acids. However, in media that react with titanium to produce hydrogen, such as hydrochloric acid and sulfuric acid, titanium usually has a high corrosion rate. However, if a small amount of oxidant is added to the acid, a passivation film will be formed on the surface of titanium. Therefore, titanium is corrosion-resistant in mixtures of strong sulfuric acid-nitric acid or hydrochloric acid-nitric acid, and even in hydrochloric acid containing free chlorine. Titanium's protective oxide film is often formed when the metal hits water, even in small amounts of water or water vapor. If titanium is exposed to a strong oxidizing environment with no water at all, rapid oxidation will occur and violent reactions, and even spontaneous combustion will often occur. This phenomenon has occurred in the reaction of titanium with fuming nitric acid containing excess nitrogen oxide and titanium with dry chlorine gas. Therefore, to prevent this kind of reaction from occurring, it is necessary to have a certain amount of water.
Usually aluminum loses its original properties at 150°C and stainless steel at 310°C, while titanium alloy still retains good mechanical properties at about 500°C. When the speed of the aircraft reaches 2.7 times the speed of sound, the surface temperature of the aircraft structure reaches 230°C, aluminum and magnesium alloys can no longer be used, and titanium alloys can meet the requirements. Titanium has good heat resistance, and it is used in the discs and blades of aero engine compressors and the skin of the rear fuselage of aircraft.
The strength of some titanium alloys (such as Ti-5AI-2.5SnELI) increases with the decrease of temperature, but the plasticity does not decrease much, and it still has good ductility and toughness at low temperatures, which is suitable for use at ultra-low temperatures. It can be used in dry liquid hydrogen and liquid oxygen rocket engines, or as ultra-low temperature containers and tanks in manned spacecraft.
Titanium is non-magnetic, it is used in submarine shells and does not cause the explosion of mines.
6. Small thermal conductivity
Contact
Soyee Cheng
ZHEN AN INTERNATIONAL CO.,LTD
Mobile: +86-17737626416 (WhatsApp)
Emaill: soyee@zaferroalloy.com
Fax: +86-372-5055180
Website1: https://www.zaferroalloy.cn/
Website2:https://www.zanewmetal.com/
Head office: Huafu Business Center, Wenfeng district, Anyang City, Henan Province, China
Hot Tags: ferro titanium feti 30, China ferro titanium feti 30 manufacturers, suppliers, factory, Ferrotitanium, Titanium Powder, Ferrotitanium 40, Ferrotitanium 70