About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Deformation-induced Microstructural Evolution during Solid Phase Processing: Experimental and Computational Studies
|
Presentation Title |
The Relative Rates of Dynamic and Static Grain Growth in an Interstitial-Free Steel |
Author(s) |
Thomas J. Bennett, Eric M. Taleff |
On-Site Speaker (Planned) |
Thomas J. Bennett |
Abstract Scope |
Grain growth is faster in specimens plastically deformed at elevated temperature than in specimens of the same material statically annealed under equivalent conditions, without deformation. These two cases of grain growth are termed dynamic grain growth (DGG) and static grain growth (SGG), respectively. The reasons for accelerated grain growth under DGG are investigated through experiments using a titanium-added interstitial-free (Ti-IF) steel sheet material. To induce DGG, specimens were deformed at 850 °C in tension under constant true-strain rates to true strains up to 0.23. SGG experiments were conducted at the same temperature. Electron backscatter diffraction (EBSD) data are used to examine the microstructures produced under both static and dynamic conditions. Grain size distributions and the subgrain structures evolved during DGG are characterized. Evidence is presented supporting the case for subgrain structures contributing to the faster grain growth observed under dynamic conditions. |
Proceedings Inclusion? |
Planned: |
Keywords |
Iron and Steel, Characterization, Other |