About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
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Symposium
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Purveyors of Processing Science and ICME: A SMD Symposium to Honor the Many Contributions of Taylan Altan, Wei Tsu Wu, Soo-Ik Oh, and Lee Semiatin
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Presentation Title |
Modeling Beta Phase Texture Evolution during Alpha+Beta Forging to Understand Precursors to Coarse (“Abnormal”) Grain Formation |
Author(s) |
Adam L. Pilchak, Austin Gerlt, Eric J. Payton |
On-Site Speaker (Planned) |
Adam L. Pilchak |
Abstract Scope |
The evolution of beta phase deformation texture during alpha+beta forging has been identified as an important aspect of whether or not coarse or “abnormal” grains are formed. The effects of strain-path, strain-rate, and deformation temperature on the formation of the highly symmetric cube texture are explored using the viscoplastic self-consistent formulation. During heating through the alpha+beta phase field and above the beta transus, the cube texture grows preferentially compared to other BCC texture components. This phenomena is explored using a Monte Carlo model of grain growth augmented to include the effects of orientation-dependent stored work. The results are discussed in the context of production forging and strategies are offered to avoid coarse grain formation. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |