Ten characteristics of titanium

◆Low density, high specific strength: titanium metal density 4.51g/cm3, higher than the aluminum lower than that of steel, copper, nickel, but the ratio of the intensity at the first of the metal.

◆Resistant to corrosion: titanium is a very active metal, and its equilibrium potential is low, and the corrosion tendency of the thermodynamic medium. But in fact the titanium in many media is very stable in the oxidizing, neutral, and weakly reducing medium, such as titanium is corrosion resistant.

◆Good heat resistance: long-term use of the new titanium at a temperature of 600 ° C or higher.

◆Low temperature resistance: Titanium Alloy TA7 - (Ti 5Al-2.5Sn) TC4 (Ti-6Al-4V) and Ti-2.5Zr-1.5Mo represented by the low-temperature titanium alloy, its strength with decreasing temperature increased,plastic change is not large. -196-253 ℃ low temperature to maintain good ductility and toughness, to avoid the cold metal brittle, ideal material for cryogenic vessels, tanks, and other equipment.

◆Anti-damping properties: metallic titanium by mechanical vibration, electrical vibration, and the time the longest steel, copper metal compared to its vibration damping.

◆Non-magnetic, non-toxic: titanium is non-magnetic metal, large magnetic field will not be magnetized, non-toxic and human tissue and blood have good compatibility, so the medical profession.

◆The tensile strength of its yield strength close to: the performance of the titanium yield (tensile strength / yield strength), indicating that the plastic deformation of titanium material forming. Since titanium yield limit and the elastic modulus ratio, when the titanium molded resilience.

◆Exchanger performance: the coefficient of thermal conductivity of the metal titanium, although lower than the carbon steel and copper, but because of the titanium excellent in corrosion resistance, so the wall thickness can be greatly thinning, dropwise condensation and the surface with the steam heat exchanger, reducing thehot group, too superficial scaling may also reduce the thermal resistance, titanium heat exchanger performance improved significantly.　

◆The low modulus of elasticity: a modulus of elasticity of titanium 106.4GMPa, at room temperature when 57% of the steel.

◆The gettering properties: titanium is a very active metal, a chemically react at high temperatures can be used with many elements and compounds. The titanium getter mainly refers to the high temperature reaction with carbon, hydrogen, nitrogen, oxygen.

The titanium the three functions

 Functional Materials is based in the physical properties of engineering materials, and that the special nature of electricity, magnetism, sound, light, heat, or materials exhibit special features in its role. Titanium and titanium alloys have been found to have three special features application future

1. Memory function: titanium - nickel alloy has a one-way, two-way, and a full range of memory effect in certain ambient temperature, is recognized as the best memory alloy. Engineering pipe joints for fighter aircraft hydraulic system; the oil conglomerate pipeline road system; 0.5mm diameter wire mesh made ​​of 500mm diameter parabolic antenna snoring for the production of medical engineering for aerospace vehicles; treatment; made ​​screws for fracture healing. The above applications are obvious effect.

2. The superconducting function: niobium - titanium alloy at temperatures below the critical temperature, showing a zero resistance superconducting function.

3. Hydrogen storage functions: Ti - Fe alloy having a hydrogen-absorbing characteristics, and a safe storage of large quantities of hydrogen, the hydrogen released again in a certain environment. In hydrogen separation, hydrogen purification, hydrogen storage and transport, manufacturing the promising hydrogen as the energy heat pump and battery applications.