Wide range of applications of high temperature alloys

High-temperature alloys refer to metal alloys that can maintain stability and excellent performance in high-temperature environments. They generally have good resistance to heat, oxidation and corrosion. Superalloy is a new type of material that can be used in high-temperature environments that was researched and developed by the National Aeronautics and Space Administration (NACA) in the 1930s. These studies have mainly focused on nickel- and cobalt-based alloys by exploring ways to improve their high-temperature strength and oxidation resistance.
Common types of high temperature alloys:
Nickel-Based Superalloys: Nickel-Based Superalloys are one of the most common high-temperature alloys. They have good high temperature resistance, high strength and corrosion resistance. Nickel-based superalloys are widely used in aerospace, energy and chemical industries, such as in the manufacture of aircraft engine components, gas turbines and combustors.

Cobalt-Based Superalloys: Cobalt-Based Superalloys are another common type of high-temperature alloys. They have excellent high temperature strength, thermal creep resistance and corrosion resistance. Cobalt-based superalloys are commonly used in high-temperature gas turbine engines, chemical reactors and nuclear energy applications.

Iron-Based Superalloys: Iron-Based Superalloys are high-temperature alloys based on iron. They have lower cost, good mechanical properties and corrosion resistance, and are used in some specific high-temperature applications, such as steam turbine components, combustors and high-temperature gas turbines.

Titanium-Based Superalloys: Titanium-Based Superalloys are based on titanium and have excellent high-temperature strength, corrosion resistance and low density. They are often used in aerospace applications, such as turbine blades and structural components of aircraft engines.

Elements such as tungsten, molybdenum, niobium, etc. and their alloys are also widely used as high-temperature alloys for specific high-temperature applications, such as high-temperature furnaces, vacuum furnaces, and high-temperature chemical reactors.

Among them, the widely used high-temperature alloys on the market include Inconel, Monel, Hastelloy, etc., all of which are nickel-based high-temperature alloys. Inconel is the trademark of a series of alloys developed by Inco Alloys International (now Huntington Alloys Corporation) in the 1940s. Inconel alloys have excellent high-temperature strength and are able to maintain high mechanical properties at extreme temperatures. This gives them excellent durability in high temperature environments. Excellent corrosion resistance, including resistance to acids, alkalis, salt water, seawater and oxidizing gases. This makes them widely used in the chemical industry and marine environments. Inconel alloy can resist oxidation and high-temperature oxidative corrosion in high-temperature environments, maintaining material stability and surface integrity. Although Inconel alloys have good high-temperature strength, they still have relatively good machinability and can be processed by forging, welding, cutting and forming.