Basic physical properties of titanium alloys

Quantitative index: 4.40-4.50 g/cm³

Application scenarios: In the aerospace field, low density helps to reduce the structural weight of aircraft and spacecraft.

Quantitative index: 110-120 GPa

Application scenarios: In applications that require elastic response, such as springs and structural components, a moderate elastic modulus can provide a good stress-strain response.

Quantitative index: Yield strength 380-1100 MPa, tensile strength 900-1400 MPa

Application scenarios: High strength properties make titanium alloys suitable for mechanical parts that bear high loads, such as engine components and high-strength fasteners.

Quantitative index: Vickers hardness 200-500 HV

Application scenarios: Wear-resistant parts, such as bearings and gears, require a higher surface hardness to resist wear.

Quantitative index: Charpy impact value 20-100 J/cm²

Application scenario: In applications where the material is required to absorb impact energy, such as automotive collision energy-absorbing components.

Quantitative index: 6-22 W/m·K

Application scenario: In components that require controlled heat transfer, such as heat sinks for electronic devices.

Quantitative index: 8-12 × 10⁻⁶ K⁻¹

Application scenario: In precision instruments and equipment, a low coefficient of thermal expansion helps maintain dimensional stability.

Quantitative index: Pure titanium is about 1668°C

Application scenario: In components that require high-temperature processing or use, such as heating elements in some furnaces.

Quantitative index: 520-700 J/kg·K

Application scenario: In thermal energy storage and transmission systems, specific heat capacity affects the ability of a material to absorb and release heat.

Quantitative indicator: about 1.2 × 10⁻⁷ S/m

Application scenario: Although titanium alloys are not good electrical conductors, they may be sufficient for use in some electromagnetic shielding applications.

Quantitative indicator: Can withstand cyclic stress up to 70-80% of tensile strength

Application scenario: In applications that experience repeated loading and unloading, such as aircraft wing spars and automotive suspension systems.

Quantitative indicator: Under certain conditions, extremely high ductility can be achieved

Application scenario: In applications that require complex shape forming, such as net forming of aerospace parts.

From lightweight and high-strength aerospace parts to highly corrosion-resistant chemical equipment, the diversity and performance advantages of titanium alloys make it the material of choice for many high-end applications. With the development of technology, the application range of titanium alloys is expected to expand further.