Development trend of TC4 titanium rods for automobiles

The disadvantages of TC4 titanium rods are: in general, the titanium used in automobiles is not good for wear resistance, elasticity is lower than steel, and it is difficult to carry out machining. However, wear resistance can be improved by coating or strengthening, elasticity can be used to improve the reinforcement, machining, if the adoption of Chuan near-net shaping technology or other processing conditions, the disadvantages are minimized and really hinder the widespread use of titanium rods is the high cost of titanium, titanium rods by the raw materials, melting, processing the complexity of the process is determined.
The melting cost is basically the cost of the energy necessary to separate the titanium from the oxygen, and the processing cost is usually the cost of processing and polishing. Polishing consists of the process of removing the cracked or damaged portion of the surface produced by the excess oxygen.

TC4 titanium rods have a variety of excellent properties, is the material of choice for many different types of automotive components, its main advantages and applications are as follows.
1, low density is only 60% of the density of steel, not only can reduce the quality of the car, for high-speed moving parts, can reduce the inertia of the movement.
2, high specific strength in a variety of metal materials, titanium bar specific strength is almost the highest, can be used as load-bearing parts.
3, the modulus of elasticity is only 50% of the steel, and fatigue strength, suitable for spring.
4, good heat resistance can be in 200 -650 ℃ for a long time, suitable for high temperature parts.
5, the coefficient of thermal expansion is small stainless steel, aluminum, 50%, suitable for engine valves and other components.
6, good corrosion resistance, corrosion resistance is better than aluminum, magnesium and stainless steel, can resist the atmosphere, rain, antifreeze road moisture and high-temperature hydrogen sulfide-containing exhaust gas corrosion, suitable for tailpipes and other components of the working conditions of the environment is more severe;;
7, good frost resistance in the environment of minus 100 ℃, will not produce low-temperature brittleness.
8, good molding can be stamping, hot forging, powder metallurgy, precision casting and other methods to manufacture various shapes of parts.
9, good decorative through the oxidation process, can form a variety of brightly colored decorative materials. Titanium in the automotive applications began in the 1950s, that is, the titanium industry was just born soon. Due to technical and price reasons, the application of titanium in automobiles has not attracted the attention of the industry. With the improvement of automobile energy saving and environmental protection standards, only in recent years has it gradually become a hot topic of common concern in the international materials and automobile industry.