High Temperature Alloy Powder Used in Additive Manufacturing

(High Temperature Alloy Powder Used in Additive Manufacturing)

What is a superalloy?

High-temperature alloy refers to a type of metal material based on iron,
nickel, and cobalt that can work for a long time at a high temperature above 600
℃ and a certain stress; and has high high temperature strength, good oxidation
and corrosion resistance, Good fatigue performance, fracture toughness and other
comprehensive properties. The superalloy is a single austenitic structure, which
has good structure stability and service reliability at various
temperatures.

Based on the above-mentioned performance characteristics and the high degree
of alloying of superalloys, it is also called "superalloys". It is an important
material widely used in aviation, aerospace, petroleum, chemical industry, and
ships. According to the matrix elements, high-temperature alloys are divided
into iron-based, nickel-based, cobalt-based and other high-temperature alloys.
The service temperature of iron-based superalloys can generally only reach
750~780℃. For heat-resistant parts used at higher temperatures, nickel-based and
refractory metal-based alloys are used. Nickel-based superalloy occupies a
particularly important position in the entire field of superalloys. It is widely
used to manufacture the hottest parts of aviation jet engines and various
industrial gas turbines.

High temperature alloy Inconel718 powder

The application of IN718 superalloy in aeroengines has gone through half a
century. After being invented and used in the manufacture of turbine parts,
IN718 has become the most widely used nickel-based superalloy material in the
history of aeroengines. The unique alloy composition design of IN718 makes it
have good comprehensive properties, that is, higher strength, creep resistance
and fatigue life, good ductility, excellent oxidation resistance, especially
under 650℃, its mechanical properties Has good stability. Many parts of modern
aero-engines, such as turbine discs, blades, brakes, shafts, stators, seals,
supports, pipes, fasteners, etc., are all made of IN718.

Material characteristics: high strength, good ductility, excellent mechanical
properties below 700 ℃, excellent oxidation resistance.

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(High Temperature Alloy Powder Used in Additive Manufacturing)