Recrystallization and Grain Growth Simulations for Multiple-Pass Rolling and Annealing of U-10Mo

Frazier, William E.; Wang, Chao; Xu, Zhijie; Overman, Nicole R.; Hu, Shenyang; Joshi, Vineet V.

doi:10.1007/s11661-019-05582-6

Recrystallization and Grain Growth Simulations for Multiple-Pass Rolling and Annealing of U-10Mo

Journal Article · Thu Dec 05 23:00:00 EST 2019 · Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science

DOI:https://doi.org/10.1007/s11661-019-05582-6· OSTI ID:1808562

Frazier, William E. ^[1]; Wang, Chao ^[1]; ^[1]; Overman, Nicole R. ^[1]; ^[1]; ^[1]

Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

A simulation model of recrystallization and grain growth has been developed to investigate grain structure evolution during deformation and heat treatment in polycrystalline U-10wt% Mo (U-10Mo) fuel. Experimentally obtained U-10Mo microstructures were used as input for closed loop simulations of multiple rolling, intermediate heating and final annealing process. FEM calculations of deformation and Potts Model simulations of recrystallization and grain growth were used to iteratively inform each subsequent stage of simulation. Furthermore, the model was then applied to predict the grain structure evolution during multiple-pass hot rolling of U-10Mo, and benchmarked against experimentally observed U-10Mo recrystallization behavior. The results showed that our model was able to capture the coupling between deformation and recrystallization as a function of microstructure, including particle stimulated nucleation and recrystallization nucleation on grain boundaries. Additionally, we have achieved reasonable quantitative agreement with U-10Mo recrystallization and grain growth behavior.

View Accepted Manuscript (DOE)

Research Organization:: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC05-76RL01830

OSTI ID:: 1808562

Report Number(s):: PNNL-SA--146694

Journal Information:: Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science, Journal Name: Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science Journal Issue: 2 Vol. 51; ISSN 1073-5623

Publisher:: ASM InternationalCopyright Statement

Country of Publication:: United States

Language:: English

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