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 |
Development and Calibration of Numerical Meso-scale Models of Microstructure Evolution for Concurrent Recovery, Recrystallization, and Grain Growth with Zener Pinning |
Author(s) |
Eric J. Payton, Austin Gerlt, Matthew Krug, Katelun Wertz |
On-Site Speaker (Planned) |
Eric J. Payton |
Abstract Scope |
From yield strength to creep resistance to fracture toughness, virtually every mechanical property of engineering alloys is affected by grain size. Microstructures retain a “memory” of prior processing history through the size, shape, orientation, and spatial distributions of phases and defects. A complex interplay exists between grain-size distribution shape, heterogeneity of stored strain, and joint size-spatial distributions of secondary phases. This is reflected in the time evolution of the grain-size distribution upon thermal exposure. We will present our efforts towards developing a fast-acting numerical meso-scale model of microstructure evolution that simultaneously incorporates the unified effects of recovery, recrystallization, grain growth, and secondary-phase pinning. The model synthesizes and builds upon seminal contributions to the field of metals processing science by Semiatin et al. Strengths and limitations of the approach with respect to enabling prediction of microstructure variation across forged components will be discussed, with emphasis on accurate measurement of input parameters. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |