Application of Titanium and Its Alloys in Aerospace
The metal element titanium is widely distributed in the earth's crust, and its content is about 0.4% of the crustal mass. The world reserve of titanium is about 3.4 billion tons and ranks 10th among all elements (oxygen, silicon, aluminum, iron, calcium, sodium, potassium, magnesium, hydrogen, titanium). Its abundant reserve provides a major source of raw materials for the production and development of titanium and titanium alloys. Since the 1950s, the types of titanium alloys have evolved from the 1954 Ti-6Al-4V alloy to the current hundreds of alloy types.
Titanium alloys are widely used in various fields, including aerospace, automobile manufacturing, medical and health, and other fields of daily life because of their high strength, good corrosion resistance, and high heat resistance. Thus, Magic Metal World decides to start a column introducing different applications of titanium and its alloys, please follow us for subseuent updates. Today we will first discuss the application of titanium and its alloys in aerospace.
Since the 1950s, titanium alloys have developed rapidly in the aerospace industry. This application mainly utilizes the excellent comprehensive mechanical properties, low density and good corrosion resistance of titanium alloys, because the materials of aerospace frames require high tensile strength, good fatigue strength and fracture toughness. The excellent high temperature tensile strength, creep strength and high temperature stability of titanium alloys have also made them suitable for use in jet engines.
Titanium alloy is one of the main structural materials for modern aircraft and engines. It can reduce the weight of the aircraft and improve the structural efficiency. The spacecraft's payload is relatively small compared to the aircraft, so the weight loss of its structure is even more important. Titanium alloys have been used in the earliest Apollo and Mercury programs, and fuel tanks and satellite pods are typical applications for titanium alloys. Titanium alloys are more advantageous than high-strength steels because of their light weight, high strength and long-term chemical stability with fuel. For example, Ti-3Al-2.5V alloy was developed for low temperature applications and still has good toughness and plasticity under cryogenic conditions in space.
Today we only briefly introduce the application of titanium and its alloys in the aerospace industry. Please pay attention to our website for more information.
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