Superalloy

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High temperature alloy is an alloy metal, which has good high temperature strength, high temperature oxidation resistance and thermal fatigue stability, and can be used in high temperature environment. Generally, it is used as components of engines, turbines, and other mechanisms which bear high t......

High temperature alloy is an alloy metal, which has good high temperature strength, high temperature oxidation resistance and thermal fatigue stability, and can be used in high temperature environment. Generally, it is used as components of engines, turbines, and other mechanisms which bear high temperature working conditions. In order to make high temperature alloy resist high temperature and wear better, it has been developing more quickly in recent years.

High temperature alloy is mainly composed of nickel, chromium and iron. It is widely used in manufacturing aircraft, rocket and other engine nozzles, blades and combustion chambers. Because of its excellent thermal corrosion resistance, it can withstand more than 3000 degree Celsius temperature when used with oxidation and corrosion resistant coating. In the common temperature range between 650 degree Celsius to 1000 degree Celsius, high temperature alloy can preserve its strength and engineerability.

High temperature alloy needs special heat treatment. The usually used method is solution treatment. It also needs to through quenching and aging treatment to get the expected performance. During heat treatment, the alloy needs to be placed in the vacuum, or in an inert gas protecting environment. The selection of suitable quenching oil or salt medium is also important.

High temperature alloy has good wearability and mechanical property in the normal temperature range. Under high temperature conditions, its strength can reach the maximum. It is widely used in aircraft manufacturing industry. It can be used in the production of aero engines, turbochargers and other components which need to bear high temperature environment. At the same time, high temperature alloy is also used in powder metallurgy, forging, welding and other manufacturing fields.

There is a wide range of high-temperature alloy materials that can be used in different fields. Based on their composition, they can be divided into three categories: iron based, nickel based and cobalt based high-temperature alloy. Each type of high-temperature alloy has its own unique characteristics and applications. The iron-based alloy is mainly used in the production of steam turbines and other heat-resistant valves. On the other hand, nickel-based alloy usually used for producing parts for rocket motor, aircraft engine and turbine blades. Finally, cobalt-based alloy is mainly used in producing tools for machining, cutting and other hot areas.

In conclusion, high temperature alloy is an important alloy material which has excellent properties such as high temperature oxidation resistance and wearability. Its applications areas are wide and it can be used in many kinds of manufacturing fields. Based on the different compositions, different types of high temperature alloy can be used for different applications. It is important for people who use high temperature alloy materials to have a deep understanding of their composition, performance and application areas, in order to select the best one for the job.

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