Titanium and titanium alloys are commonly used in exhaust systems. Using titanium silencers instead of stainless steel silencers can reduce body weight by about 40%. Other studies have shown that if all the traditional parts in a 1500kg medium-sized car are replaced with titanium alloy parts, the mass of the vehicle will be reduced by about 500kg, which can also significantly reduce fuel consumption. Application of Titanium Alloy Lightweight Materials for Automotive.
Studies have shown that every 0.1t reduction of a vehicle can save up to 0.6L/100km of fuel and reduce carbon dioxide emissions by 11g/100km. A large number of studies have proved that vehicle lightweight plays a very important role in reducing fuel consumption of fuel vehicles and meeting the requirements of energy conservation and environmental protection. At the same time, for new energy vehicles, car lightweight can not only save energy, but also increase the range of the car and prolong the battery life under the same battery capacity. Therefore, the lightweight of electric vehicles also plays a very important role in improving the performance of electric vehicles. In addition, reducing the mass of the vehicle can also reduce the burden of the suspension system, reduce the inertia of the vehicle, and play a protective role in the vehicle.
Studies have confirmed that the 20kg steel automotive power valve parts and 0.8kg titanium alloy parts have the same effect, but its mass is reduced by 96%. Using titanium alloy to make automobile engine valves can reduce weight by 30% to 40% and increase the maximum speed. For the shock absorber system, it has been shown that it is feasible to use titanium alloy spring to completely replace the original steel spring in many aspects, and the weight can be reduced by 43.3%.
At present, China has the ability to produce titanium and titanium alloy, but due to the high price of titanium alloy, sensitive to process parameters, so the application of titanium alloy in auto parts has been limited. Due to the poor fluidity of titanium alloy, casting defects are easily formed in the castings. Therefore, the equipment and conditions required for titanium alloy casting and processing are required to be higher. This is one of the important reasons why titanium alloy parts are not favored by automobile manufacturers. With the rapid improvement of science and technology in China, the research and development of titanium and titanium alloy has attracted much attention, which will make titanium alloy develop towards low cost and high quality.
