April 2023 - ASMD/HPAD/AHAD: Addition of Additively Manufactured (AM) Inconel 718

The newest addition to the CINDAS materials properties databases is additively manufactured (AM) Inconel 718. IN-718 is a well-known superalloy which is a workhorse for use in high temperature applications such as turbine blades, ducting systems and engine exhaust systems in aircraft and rocket engines. It is also used in chemical and petroleum processing plants for vessels, pumps, valves and piping, as well as in industrial gas turbines, nuclear reactors, and the oil and gas industries.

This alloy also has cryogenic applications due to its ability to withstand brittle fracture at low temperatures. Studies of additively manufactured parts made of IN-718 have shown that mechanical properties are not sacrificed when process parameters are optimally selected and sometimes exceed those of cast or wrought parts. The development of high-quality, consistent powder feedstock along with the advancement in industrial-grade metal 3D printing machines has advanced the ability of many industries to take advantage of additively manufacturing parts from IN-718. AM for IN-718 parts is dominated by powder bed fusion (PBF) processes, used to manufacture complex shaped parts, and directed energy deposition (DED) processes typically used for reclamation and repair of IN-718 and other nickel alloy parts. Recently, the binder jetting (BJT) process has been used to make IN-718 AM parts.

This chapter of 211 pages with 128 references contains 212 data sets with 652 curves. Over 73 properties are presented with 36 independent variables.

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