Titanium is a structural metal with high strength, good corrosion resistance and high heat resistance. It developed in the 1950s, and in the 1950s and 1960s, it mainly developed high-temperature titanium alloys for aircraft engines and structural titanium alloys for airframes.
A number of corrosion-resistant titanium alloys were developed in the 1970s. Since the 1980s, corrosion-resistant titanium alloys and high-strength titanium alloys have been further developed. Titanium alloys are mainly used to make aircraft engine     compressor parts, by rockets, missiles and high-speed aircraft structural parts.
It is worth mentioning that titanium alloy is an alloy made by combining titanium with other elements. Due to the limitation of processing technology and even raw materials, the production of titanium alloys is always handled by the most professional manufacturers in a few countries such as Japan, Russia, the United States, France, etc.
Compared with other titanium metal products, the titanium alloy industry started late in China, so its initial development was slow. However, the pace of development is stable now. With the continuous efforts of Chinese scientists, many major breakthroughs have been made in terms of the production of titanium alloys. Therefore, it can be said with certainty that the industrial monopoly seems to have been broken and the Chinese units seem to have reached the stage of self-sufficiency.

The titanium alloy industry has entered the stage of mass production. Therefore, keeping in mind the progress made in this industry, the production capacity of sponge titanium has been greatly improved. Therefore, China has begun to build many titanium alloy production lines.

1. Application of titanium alloy in aircraft

Mainly used in the manufacture of aircraft and engines, such as forged titanium fans, compressor discs and blades, hoods, exhausts, and other structural components such as aircraft beams. The spacecraft mainly uses the high specific strength, corrosion resistance and low temperature resistance of titanium alloys to manufacture various pressure vessels, fuel tanks, fasteners, instrument bands, frames and rocket boxes. Titanium alloy sheet welded parts are also used in artificial earth satellites, lunar modules, manned spacecraft and space shuttles.

2. Reasons why titanium alloys are widely used in aviation

The top speed of modern aircraft reaches 2.7 times the speed of sound. Such fast supersonic flight will cause the aircraft to rub in the air and generate a lot of heat. When the flight speed reaches 2.2 times the speed of sound, the aluminum alloy will not be able to bear it. High temperature resistant titanium alloys must be used.

When the thrust ratio of an aero engine increased from 4 to 6 to 8 to 10 and the compressor outlet temperature rose from 200 to 300°C to 500 to 600°C, the low pressure compressor discs and blades were originally made necessary aluminum. Titanium alloy.

3. Analysis of processing characteristics of titanium alloy

First, the thermal conductivity of titanium alloys is very low, only 1/4 of steel, 1/13 of aluminum and 1/25 of copper. Due to the slow heat dissipation in the cutting area, thermal equilibrium is not favorable. During the cutting process, the heat dissipation and cooling effects are very poor, and high temperatures are easily formed in the cutting area. After machining, the part deforms greatly, resulting in increased torque of the cutting tool and rapid wear of the cutting edge. Reduced durability.

Secondly, the low thermal conductivity of titanium alloy makes it difficult to radiate cutting heat in a small area near the cutting edge, the friction on the rake face increases, the removal of chips is not easy, the cutting is not easy to emit heat, and it will accelerate tool wear. Finally, titanium alloys have high chemical activity and are easily processed at high temperatures with tool materials to form solutions and spread, which can lead to bonding, burning, and cutting.

The Advantages Of The Titanium Alloys

The titanium alloys seem to have a lot of advantages. Let us see some of them.

High strength

When you compare these alloys to iron and steel, you will find that the alloy seems to have very high strength. It is also a better choice when you want to use it on components which would need both rigidity and strength alike. This is why you find its use in areas like aerospace, military, and even petroleum fields as well.

The thermal strength

The next benefit is that titanium alloys have good thermal strength. Even when the temperature is raised to over five Baidu, the alloy will stay stable and the specific strength is not going to drop massively.

High hardness

Another advantage has to be the fact that it doesn’t deform easily and has a good hardness factor. So, even when it collides with other metals, the shape is not going to get deformed.

Low-temperature resilience

Even at low temperatures, the mechanical properties of the alloy are going to be very well maintained. They are tough and the strength will increase as compared to normal temperature.

Strong corrosion resistance

When present in the ambient temperature air, a thin layer gets formed over the titanium alloy. This helps it in preventing corrosion.

Technological performance

They have good plasticity and also great elastic-plastic ability too. Of course, it comes in handy when applying it to different commercial uses.

Expansion coefficient

Titanium has low expansion coefficient. So, the tools are much more easily adaptable to fluctuation in temperature.

Non-magnetic

Owing to its nonmagnetic nature, some of the top military combat equipment make use of these alloys.