Applications of titanium alloys in the automotive field

With the improvement of living standards and titanium manufacturing technology, people have higher and higher requirements for automobile performance. Lightweight, low energy consumption and low emissions are the development trends of automobiles. Improvement of automotive materials is a feasible method for lightweighting. To achieve low energy consumption and low emissions, it is necessary to increase the research and development of high-end lightweight materials. The use of new materials such as lightweight materials, metal matrix composites and ceramics determines the development trend of automobiles to a certain extent and is an important aspect of the development of automobile technology. Titanium and titanium alloys, as structural and functional materials, are ideal materials for achieving lightweight, high performance and high functionality in automobiles. With the development of the titanium industry, titanium materials will eventually occupy an important position in the automotive field. The automotive titanium market has huge potential and broad prospects.

Common titanium alloy auto parts:

1. Titanium alloy engine connecting rod - Titanium alloy is very rational as a connecting rod material due to its lightweight advantage. Compared with steel connecting rods, titanium alloy connecting rods can reduce weight by 15%-20%. The first car to use titanium alloy connecting rods was the Ferrari 315LV8.

2. Engine valves - Titanium alloy automobile engine valves are light in weight, have long service life, and can also reduce fuel consumption. Compared with steel engine valves, the mass is reduced by about 30%-40%, and the engine limit speed can be increased by about 20%.

3. Valve spring seat - The advantages of titanium alloy's high strength and fatigue resistance are exactly in line with the characteristics of the valve spring seat. The titanium alloy valve spring seat is 30%-40% lighter than steel, which reduces the inertial mass of the valve structure. The maximum engine speed can also be increased.

4. Titanium alloy springs - titanium alloys have a lower elastic modulus. Compared with steel springs, under the premise of providing the same elasticity, the height of titanium springs is only 40% of steel springs, and the mass is only 30%-40% of steel springs bring greater design space to the car body. In addition, the service life of titanium alloy springs is much longer than that of steel.

5. Turbocharger rotor - titanium alloy has good heat resistance and good machinability. The rotating rotor of the turbocharger works in an environment of 850°C for a long time, which gives titanium alloy a good space to display.

6. Exhaust system and muffler - Titanium alloy is widely used in automobile exhaust systems. Its performance, extended life and appearance have been improved, and fuel combustion efficiency has been improved. Compared with steel exhaust, titanium exhaust system can reduce the mass by about 40%, generally weighing about 5 kilograms.

7. Car body frame - Some titanium alloys have high strength and good toughness, making them ideal materials for making car body frames. Japanese car manufacturers use titanium to make body frames to obtain a better driving experience.

8. Titanium alloy wheel hub bolts - Titanium alloy bolts are an essential part for modifying wheel hubs. They are not only light in weight, but also stronger than steel bolts. The unique luster is also a good decoration on the wheels, improving their appearance.

9. Other titanium alloy components - In addition to the above components, titanium is also used in engine rocker arms, suspension springs, engine piston pins, automotive fasteners, lug nuts, car door protruding beams, car gear brackets, and brakes Automotive parts such as caliper pistons, pin bolts, pressure plates, shift buttons, and automobile clutch discs.