About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Fatigue in Materials: Fundamentals, Multiscale Characterizations and Computational Modeling
|
Presentation Title |
M-20: Fatigue Behavior of 304SS using Synchrotron X-ray Tomography and Diffraction |
Author(s) |
Ryan Michael Schoell, Li Xi, Harvey West, Peter Hosemann, Jun-Sang Park, Peter Kenesei, Jonathan Almer, Zeev Shayer, Djamel Kaoumi |
On-Site Speaker (Planned) |
Ryan Michael Schoell |
Abstract Scope |
A microstructural study on the effect of fatigue on four-point bend specimens of three variations of 304 stainless steels (Commercial 304, 304H, and 304L) was investigated using synchrotron x-ray tomography and diffraction followed by transmission electron microscopy. X-ray tomography revealed the formation of the fatigue-induced microvoids and cracks to varying degrees in the different alloys. The diffraction data was used to quantify the amount of deformation-induced martensite found after fatigue in all samples. Transmission electron microscopy evidenced the role of the precipitates/inclusions on the microvoid formation which was found to depend on the type of precipitate. The shape of the precipitates/inclusions was also found to influence the microvoid shape (elongated vs. spherical) |
Proceedings Inclusion? |
Planned: |
Keywords |
Characterization, Iron and Steel, Mechanical Properties |