| About this Abstract |
| Meeting |
Additive Manufacturing Benchmarks 2022 (AM-Bench 2022)
|
| Symposium
|
Additive Manufacturing Benchmarks 2022 (AM-Bench 2022)
|
| Presentation Title |
Measurement and Comparison of Residual Strain and Stress within AM-Bench Components Composed of SS15-5PH and IN625 |
| Author(s) |
Nicholas Bachus, Maria Strantza, Bjorn Clausen, Christopher Richard D'Elia, Michael Ralph Hill, Jun Young Peter Ko, Lyle Levine, John Okasinski, Jun-Sang Park, Thien Phan, Donald William Brown |
| On-Site Speaker (Planned) |
Nicholas Bachus |
| Abstract Scope |
The as-built residual strain and stress states in two AM-Bench components, one composed of 15-5PH stainless steel and the other of Inconel 625, are assessed. Residual strains are determined via synchrotron source energy-dispersive diffraction, while the mechanical relaxation-based contour method is used to assess residual stress. A comparison of the residual strain and stress trends and magnitudes between the two material systems is made by normalizing results in each material by their elastic yield strain or stress limit, where these were determined from extracted tensile specimens. The two components have highly similar spatial distributions of strain and stress, but the IN625 component had roughly double the magnitude relative to its elastic limit when manufactured with the same processing conditions as the 15-5PH component. The larger residual strain and stress in the IN625 component is consistent with the non-dimensional Fourier number associated with the materials and the additive manufacturing process. |
| Proceedings Inclusion? |
Undecided |