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Ten Characteristics Of Titanium Material
Jun 13, 2016

A, low density, high specific strength

The density of titanium 4.51g/cm3, commonly used in metal, only A1 2.6 g/cm3, lighter than titanium, carbon steel is 7.86 g/cm3, 0Cr18Ni9Ti, 1Cr18Ni9Ti stainless steel is 7.9 g/cm3, copper is 8.96 g/cm3, nickel is 8.9 g/cm3, heavier than titanium.

Second, low elastic modulus

Elastic modulus of titanium at room temperature, 106.4GPa, steel 57%, indicating that resistance is the ability of titanium less than steel. Titanium subjected to external pressure, buckling and deflection under the conditions of use is limited, not rigid structural parts.

Third, small coefficient of thermal conductivity

Heat transfer mechanism of titanium is mainly electronic thermal conductivity, followed by lattice thermal conductivity. Actual test results for: titanium for thermal conductivity of 15.07W/(m · K), low carbon steel 1/5, 1/25 of copper, stainless steel and similar. The poor thermal conductivity of titanium, and can be used in heat is not required under good conditions.

Four, tensile strength and yield strength close

This performance shows the yield ratio of the titanium (tensile strength and yield strength), said poor time molding the plastic deformation of titanium metals, there are great stress.

Five, nonmagnetic, non poisonous

Is a non-magnetic metal, nor in the great magnetic field become magnetized.

Six, damping resistance

Titanium subjected to mechanical vibrations, vibration, compared with steel, copper, its longest-vibration damping. Can make use of titanium as a performance tuning fork, medical ultrasonic disintegrator vibration components and advanced audio speaker vibration film and so on.

Seven, heat resistance

In order to meet the needs of aviation, the aerospace industry, solid solution strengthening innovative α or α-alloys, alloys of intermetallic-based stable and beta alloys, developed a lightweight, heat strength of titanium alloy, available in 500 ℃ long-term use, its physical, mechanical and technological properties and stability.

Eight, low temperature resistance

Titanium alloy TA7 (Ti-5AI-2.5Sn) TC4 (Ti-6A1-4V) and Ti-2.5Zr-1.5Mo, as a representative of titanium alloy at low temperature, the intensity decreased with temperature, but the plastic changes little, good at-196 c ~-253 c low temperature ductility and toughness, to avoid the cold and brittle, is the ideal material for Cryogenic vessels, tanks and other equipment.

Nine, suction performance

Titanium is a chemically very reactive metals, with many elements and compounds at high temperature to react.

Ten and corrosion resistance

Titanium is a very reactive metal, its equilibrium potential is very low, the Thermodynamics of corrosion in the medium. But Titanium is very stable in many media, such as titanium oxide, neutral and weakly reductive media are corrosion-resistant.