About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
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Symposium
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Advanced Characterization Techniques for Quantifying and Modeling Deformation
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Presentation Title |
Predicting Strength in Steel Wire Welds Using Three-Dimensional Pore Porosity Measurements |
Author(s) |
Daniel R. Sinclair, Nikhilesh Chawla, W. Brendan Goodwin, Adam Tomkins, Rebecca Jennings, Max Berman, Jacob Stegmann |
On-Site Speaker (Planned) |
Daniel R. Sinclair |
Abstract Scope |
Welded stainless steel wire is used extensively in food preparation, manufacturing, and commercial products for its low weight and manufacturability. However, welded parts have consistently low lifetimes due to premature failure observed at weld joints as a result of manufacturing defects. In a post-mortem failure analysis of 316L steel welds used in industrial kitchen equipment, characteristic weld voids were identified as a potential driver of cracking. A multimodal characterization framework was employed using non-destructive x-ray tomography. Void size and morphology was used to rationalize observations of variations in weld strength and fracture mode. A qualitative failure mechanism based on void shape was hypothesized, and a composite shape factor was designed which correlated well with tensile strength. Void shape is thus proposed here as a predictor of weld quality, and a method to accelerate process design through non-destructive testing is described. |
Proceedings Inclusion? |
Planned: |
Keywords |
Joining, Mechanical Properties, Characterization |