Properties of Inconel 625 Mesh Structures Grown by Electron Beam Additive Manufacturing

Journal Article · Wed Jan 01 00:00:00 EST 2014 · Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing

DOI:https://doi.org/10.1016/j.msea.2014.07.051· OSTI ID:1154809

List, III, Frederick Alyious ^[1]; Dehoff, Ryan R ^[1]; Lowe, Larry E ^[1]; Sames, William J ^[1]

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1. ORNL

Relationships between electron beam parameters (beam current, beam speed, and beam focus) and physical properties (mass, diameter, elastic modulus, and yield strength) have been investigated for Inconel 625 mesh cubes fabricated using an additive manufacturing technology based on electron beam melting. The elastic modulus and yield strength of the mesh cubes have been systematically varied by approximately a factor of ten by changing the electron beam parameters. Simple models have been used to understand better these relationships. Structural anisotropies of the mesh associated with the layered build architecture have been observed and may contribute, along with microstructural anisotropies, to the anisotropic mechanical properties of the mesh. Knowledge of this kind is likely applicable to other metal and alloy systems and is essential to rapidly realize the full potential of this burgeoning technology.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 1154809
• Journal Information: Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing, Vol. 615; ISSN 0921-5093
• Country of Publication: United States
• Language: English

Related Subjects

Nickel based superalloys
Inconel 625
electron beam melting
additive manufacturing
mesh structures
mechanical characterization