Application and characteristics of titanium alloy in automobiles

Titanium alloy is a new type of structural and functional material. It has excellent comprehensive properties, low density and high specific strength. The density of titanium is 4.51g/cm3, which is between aluminum (2.7g/cm3) and iron (7.6g/cm3). The specific strength of titanium alloy is higher than that of aluminum alloy and steel, and the toughness is equivalent to that of steel. Titanium and titanium alloys have good corrosion resistance, better than stainless steel, especially in the marine atmosphere, they resist the corrosion of chloride ions and have good corrosion resistance in a micro-oxidizing atmosphere. The working temperature of titanium alloys is wide, and low-temperature titanium alloys are at -253℃ It can also maintain good plasticity, and the working temperature of heat-resistant titanium alloy can reach about 550℃, and its heat resistance is significantly higher than that of aluminum alloy and magnesium alloy. At the same time, it has good processability and welding performance.

The excellent properties of titanium and titanium alloys have attracted the attention of various cutting-edge industries since the industrial production of titanium. With the start of the titanium industry, in the mid-1950s, titanium entered the automobile industry. Entering the 1990s, with the global energy shortage and the strengthening of people’s environmental awareness, especially in the automotive industry, the United States, Japan, and Europe have successively promulgated a series of ecological regulations to regulate fuel efficiency, CO2 emissions, vehicle weight reduction, The safety and reliability of automobiles put forward higher requirements. Many developed countries and well-known automobile manufacturers are actively developing and increasing their research investment in titanium for automobiles. Provides powerful power for automotive titanium. In the new century, my country's titanium industry has gradually entered the automotive field.

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