Meltio Nickel 718

Meltio Nickel 718

Meltio Nickel 718

Product catalog summary
Overview: The Meltio Nickel 718 datasheet provides detailed information on the properties, applications, and processing of Nickel 718, a versatile and corrosion-resistant alloy. It is particularly noted for its mechanical properties at extreme temperatures, making it suitable for industries such as aerospace, energy, and marine.
Material Specifications: Nickel 718 is identified by several standards (ERNiFeCr-2 / S Ni 7718 / 2.4667) and has a wire density of 8.2 g/cm³. Its melting point ranges from 1371 to 1427 ºC (2500 to 2600 °F).
Heat Treatment: To optimize mechanical properties, Nickel 718 requires heat treatment post-3D printing, involving solution annealing and age hardening. Solution annealing relieves internal stresses, while age hardening enhances strength but reduces machinability.
3D Printing Parameters: The datasheet provides specific parameters for achieving fully dense samples, including laser power, velocity, argon flow, layer height, wire speed, and energy density.
Spool Specifications: The wire used is 1.0 mm in diameter, with a spool weight of 15 kg and volume of 1829 cm³. The wire is uncoated and tightly spooled for compatibility with Meltio systems.
Applications: Nickel 718 is used in aerospace, energy, oil and gas, chemical, and automotive industries due to its high strength, age-hardenability, and resistance to high temperatures and corrosion.
Chemical Composition: The alloy's composition includes elements such as Nickel, Chromium, Iron, and Molybdenum, with specific weight percentages provided.
Mechanical Properties: The datasheet compares the ultimate tensile strength, yield strength, and elongation of cast, wrought, and 3D printed samples, showing that 3D printed specimens perform comparably to conventionally manufactured ones.
Microstructure Analysis: Computed tomography scans reveal no detectable voids or defects in 3D printed samples, with delta-phase dendrites and intermetallic phases observed in the as-printed state.
Disclaimer: The datasheet notes that specifications may change as research progresses and advises users to determine the suitability of the information for their applications.
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Catalog excerpts

Meltio Nickel 718-1

Meltio Material Datasheet Rev 2.0 Meltio Nickel 718 ERNiFeCr-2/S Ni 7718/2.4667 Nickel 718 is a highly versatile and corrosion-resistant alloy with exceptional mechanical properties at both high and low temperatures. Its ability to withstand harsh environments and high-stress applications has made it a popular choice across a range of industries, including aerospace, energy, and marine. Being Nickel 718 a difficult alloy to work using conventional methods, 3D Printing facilitates its usage for a broader range of applications.

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Meltio Nickel 718-2

Meltio Material Datasheet Tomography Computed Tomography Scan of 3D printed sample part in Inconel 718 without detectable voids or defects. Resolution of 24 pm per pixel. In the as-printed state of Nickel 718, delta-phase dendrites have been observed within the gamma nickel matrix. Under higher magnification, the presence of intermetallic phases and gamma prime has been noted. Relative density as 3D printed Mechanical Properties Results show that specimens printed using Meltio’s wire-laser metal 3D printed perform at the same level as samples made with conventional manufacturing methods. As-printed...

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