Comparison of electron beam and laser beam powder bed fusion additive manufacturing process for high temperature turbine component materials

Technical Report · Fri Apr 01 00:00:00 EDT 2016

DOI:https://doi.org/10.2172/1248786· OSTI ID:1248786

Dryepondt, Sebastien N ^[1]; Pint, Bruce A ^[1]; Ryan, Daniel ^[2]

---

1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
2. Solar Turbines, Inc., San Diego, CA (United States)

The evolving 3D printer technology is now at the point where some turbine components could be additive manufactured (AM) for both development and production purposes. However, this will require a significant evaluation program to qualify the process and components to meet current design and quality standards. The goal of the project was to begin characterization of the microstructure and mechanical properties of Nickel Alloy X (Ni-22Cr-18Fe-9Mo) test bars fabricated by powder bed fusion (PBF) AM processes that use either an electron beam (EB) or laser beam (LB) power source. The AM materials produced with the EB and LB processes displayed significant differences in microstructure and resultant mechanical properties. Accordingly, during the design analysis of AM turbine components, the specific mechanical behavior of the material produced with the selected AM process should be considered. Comparison of the mechanical properties of both the EB and LB materials to those of conventionally processed Nickel Alloy X materials indicates the subject AM materials are viable alternatives for manufacture of some turbine components.

• 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: AC05-00OR22725
• OSTI ID: 1248786
• Report Number(s): ORNL/TM-2016/47; ED2802000; CEED492; CRADA/NFE-15-05495
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
laser melting
electron beam melting
alloy X