Titanium is an important structural metal developed in the 1950s. Titanium alloys are widely used in various fields because of their high strength, good corrosion resistance and high heat resistance. Many countries in the world have realized the importance of titanium alloy materials, and have carried on the research and development of it, and got the practical application. From the 1950s to the 1960s, it mainly developed high-temperature titanium alloy for aeroengine and structural titanium alloy for engine body. In the 1970s, it developed a batch of corrosion resistant titanium alloy. Since the 1980s, corrosion resistant titanium alloy and high-strength titanium alloy have been further developed. Titanium alloy is mainly used in the production of aircraft engine compressor components, followed by rockets, missiles and high-speed aircraft structure.
Titanium is an important structural metal developed in the 1950s. Titanium alloys are widely used in various fields because of their high strength, good corrosion resistance and high heat resistance. Many countries in the world have realized the importance of titanium alloy materials, and have carried on the research and development of it, and got the practical application.
The first practical titanium alloy is the ti-6al-4v alloy developed in the United States in 1954. Due to its good heat resistance, strength, plasticity, toughness, formability, weldability, corrosion resistance and biocompatibility, it has become the ace alloy in the titanium alloy industry. The use of this alloy has accounted for 75% ~ 85% of all titanium alloys. Many other titanium alloys can be seen as variants of the ti-6al-4v alloy.
From the 1950s to the 1960s, it mainly developed high-temperature titanium alloy for aeroengine and structural titanium alloy for engine body. In the 1970s, it developed a batch of corrosion resistant titanium alloy. Since the 1980s, corrosion resistant titanium alloy and high-strength titanium alloy have been further developed. The use temperature of heat-resistant titanium alloy has been increased from 400℃ in 1950s to 600 ~ 650℃ in 1990s. With the advent of A2(Ti3Al) and r (TiAl) base alloys, titanium is being pushed from the cold end of the engine (fans and compressors) to the hot end of the engine (turbines) at the engine service site. Structural titanium alloys are developing towards high strength, high plastic, high strength, high toughness, high modulus and high damage tolerance.
In addition, since the 1970s, shape memory alloys such as ti-ni, ti-ni-fe and ti-ni-nb have also appeared, and have been increasingly widely applied in engineering.
