5J1480 precision alloy 5J1480 superalloy Iron-nickel alloy According to the matrix elements, it can be divided into iron-based superalloy, nickel-based superalloy and cobalt-based superalloy. According to the preparation process, it can be divided into deformed superalloy, casting superalloy and powder metallurgy superalloy. According to the strengthening method, there are solid solution strengthening type, precipitation strengthening type, oxide dispersion strengthening type and fiber strengthening type. High-temperature alloys are mainly used in the manufacture of high-temperature components such as turbine blades, guide vanes, turbine discs, high-pressure compressor discs and combustion chambers for aviation, naval and industrial gas turbines, and are also used in the manufacture of aerospace vehicles, rocket engines, nuclear reactors, petrochemical equipment and Coal conversion and other energy conversion devices.

material application

5J1480 thermal bimetal 5J1480 precision alloy 5J1480 superalloy iron-nickel alloy superalloy refers to a kind of metal material based on iron, nickel and cobalt, which can work for a long time at a high temperature above 600 ℃ and under a certain stress; and has a high Excellent high temperature strength, good oxidation resistance and corrosion resistance, good fatigue performance, fracture toughness and other comprehensive properties. The superalloy is a single austenite structure, which has good structure stability and service reliability at various temperatures.

Based on the above performance characteristics, and the high degree of alloying of superalloys, also known as “super alloys”, is an important material widely used in aviation, aerospace, petroleum, chemical industry, and ships. According to the matrix elements, superalloys are divided into iron-based, nickel-based, cobalt-based and other superalloys. The service temperature of iron-based high-temperature alloys generally can only reach 750~780°C. For heat-resistant parts used at higher temperatures, nickel-based and refractory metal-based alloys are used. Nickel-based superalloys occupy a special and important position in the entire field of superalloys. They are widely used to manufacture the hottest parts of aviation jet engines and various industrial gas turbines. If the durable strength of 150MPA-100H is used as the standard, the highest temperature that nickel alloys can withstand is >1100°C, while nickel alloys are about 950°C, and iron-based alloys are <850°C, that is, nickel-based alloys are correspondingly higher by 150°C to about 250°C. So people call the nickel alloy the heart of the engine. At present, in advanced engines, nickel alloys account for half of the total weight. Not only turbine blades and combustion chambers, but also turbine disks and even the latter stages of compressor blades have begun to use nickel alloys. Compared with iron alloys, the advantages of nickel alloys are: higher working temperature, stable structure, less harmful phases and high resistance to oxidation and corrosion. Compared with cobalt alloys, nickel alloys can work under higher temperature and stress, especially in the case of moving blades.

5J1480 thermal bimetal 5J1480 precision alloy 5J1480 superalloy Iron-nickel alloy The above-mentioned advantages of nickel alloy are related to some of its excellent properties. Nickel is a face-centered cubic structure with a very

Stable, no allotropic transformation from room temperature to high temperature; this is very important for selection as a matrix material. It is well known that austenitic structure has a series of advantages over ferrite structure.

Nickel has high chemical stability, hardly oxidizes below 500 degrees, and is not affected by warm air, water and some aqueous salt solutions at school temperatures. Nickel dissolves slowly in sulfuric acid and hydrochloric acid, but quickly in nitric acid.

Nickel has great alloying ability, and even adding more than ten kinds of alloying elements does not appear harmful phases, which provides potential possibilities for improving various properties of nickel.

Although the mechanical properties of pure nickel are not strong, its plasticity is excellent, especially at low temperature, the plasticity does not change much.

Features and uses: moderate heat sensitivity and high resistivity. Thermal sensor in medium temperature measurement and automatic control equipment