What are the excellent properties of titanium metal?

1. Low density and high specific strength. The density of titanium metal is 4.51g/cm3, which is higher than that of aluminum and lower than that of steel, copper, and nickel, but its specific strength ranks first among metals. 2. Corrosion resistance. Titanium is a very active metal, its equilibrium potential is very low, and its thermodynamic corrosion tendency in the medium is large. But in fact, titanium is very stable in many media, such as titanium is corrosion-resistant in oxidizing, neutral and weakly reducing media.

This is because titanium and oxygen have a great affinity. In the air or in an oxygen-containing medium, a dense, strong, and inert oxide film is formed on the surface of titanium, which protects the titanium substrate from corrosion. Self-healing or regenerating quickly even due to mechanical wear. This indicates that titanium is a metal with a strong tendency to passivation. The titanium oxide film always maintains this characteristic when the medium temperature is below 315℃.​​

In order to improve the corrosion resistance of titanium, surface treatment technologies such as oxidation, electroplating, plasma spraying, ion nitridation, ion implantation, and laser treatment have been developed to enhance the protection of the titanium oxide film and obtain the desired corrosion resistance. Effect. A series of corrosion-resistant titanium alloys such as titanium-molybdenum, titanium-palladium, titanium-molybdenum-nickel, etc. have been developed for the needs of metal materials in the production of sulfuric acid, hydrochloric acid, methylamine solution, high-temperature wet chlorine gas, and high-temperature chloride.

3. Good heat resistance. The new Grade 1 Pure Titanium Plate can be used for a long time at a temperature of 600 ℃ or higher. Fourth, the low-temperature performance is good. Low-temperature titanium alloys represented by titanium alloys TA7 (Ti-5Al-2.5Sn), TC4 (Ti-6Al-4V), and Ti-2.5Zr-1.5Mo, the strength increases with the decrease of temperature, but the plasticity does not change. big. It maintains good ductility and toughness at a low temperature of -196-253 °C and avoids the cold brittleness of metals. It is an ideal material for low-temperature containers, storage tanks, and other equipment.

5. Strong anti-dumping performance. When Grade 9 Ti-3Al-2.5V Titanium Plate is subjected to mechanical vibration and electrical vibration, its own vibration attenuation time is very long compared with steel and copper metals. Using this property of titanium, it can be used as a tuning fork, a vibration element of a medical ultrasonic mill, and a vibration film of an audio speaker.