High-temperature alloy

High-temperature alloy is a kind of metal material that can work for a long time under high temperature above 600℃ and certain stress, with high high-temperature strength, good oxidation and corrosion resistance, as well as good fatigue properties and fracture toughness and other comprehensive performance. This alloy is usually iron, nickel, cobalt as the matrix, with good organizational stability and reliability. High-temperature alloys have a high degree of alloying, so they are also known as "superalloys", and are widely used in aviation, aerospace, petroleum, chemical, naval and other fields12, Chemical industry, ships and other fields.

The classification of high-temperature alloys mainly includes iron-based, nickel-based, cobalt-based, etc. Among them, nickel-based high-temperature alloys occupy a special important position in the whole high-temperature alloy field, and are widely used in the manufacture of aviation jet engines, various industrial gas turbines, and the hottest parts. The nickel-based high-temperature alloys occupy a special important position in the whole high-temperature alloy field, and are widely used in the manufacture of aviation jet engines and various industrial gas turbines' hottest parts. Iron-based high-temperature alloys can only be used at a temperature of 750-780 ℃, and for heat-resistant parts used at higher temperatures, nickel-based and refractory metal-based alloys are used.

High-temperature alloys have a long history of development, and have been studied in the United Kingdom, Germany and the United States since the late 1930s. During the Second World War, the research and use of high-temperature alloys entered a period of vigorous development in order to meet the needs of new types of aircraft engines. With the development of science and technology, the working temperature of metal materials or products continue to improve, high-temperature alloys are increasingly widely used!