About this Abstract |
Meeting |
Additive Manufacturing Benchmarks 2022 (AM-Bench 2022)
|
Symposium
|
Additive Manufacturing Benchmarks 2022 (AM-Bench 2022)
|
Presentation Title |
Neutron Diffraction Stress Measurements on an AM Bench 2022 Bridge Artifact |
Author(s) |
Thomas Gnaupel-Herold, Thien Phan, Lyle E. Levine, Jeffrey R. Bunn, Paris A. Cornwell |
On-Site Speaker (Planned) |
Thomas Gnaupel-Herold |
Abstract Scope |
We report on the results of neutron diffraction stress measurements on an IN718 bridge artifact. The specimen has the same geometry as the AMB 2018 (IN625) artifact. Stresses follow a similar pattern as before (AMB 2018) with strong, longitudinal tensile stresses near 400 MPa near the surface and compressive stresses up to -400 MPa in the bulk. Stress magnitudes are highest in the longitudinal direction near the surface, and in the build direction in the bulk. The comparison to the 2018 artifact shows appreciable differences between stresses both in magnitudes and spatial distribution. |
Proceedings Inclusion? |
Undecided |