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

Abstract

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.

Authors:
 [1];  [1]; ORCiD logo [1];  [1]; ORCiD logo [1]; ORCiD logo [1]
  1. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1808562
Report Number(s):
PNNL-SA-146694
Journal ID: ISSN 1073-5623
Grant/Contract Number:  
AC05-76RL01830
Resource Type:
Accepted Manuscript
Journal Name:
Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science
Additional Journal Information:
Journal Volume: 51; Journal Issue: 2; Journal ID: ISSN 1073-5623
Publisher:
ASM International
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Recrystallization; Grain growth; IMCE

Citation Formats

Frazier, William E., Wang, Chao, Xu, Zhijie, Overman, Nicole R., Hu, Shenyang, and Joshi, Vineet V. Recrystallization and Grain Growth Simulations for Multiple-Pass Rolling and Annealing of U-10Mo. United States: N. p., 2019. Web. doi:10.1007/s11661-019-05582-6.
Frazier, William E., Wang, Chao, Xu, Zhijie, Overman, Nicole R., Hu, Shenyang, & Joshi, Vineet V. Recrystallization and Grain Growth Simulations for Multiple-Pass Rolling and Annealing of U-10Mo. United States. https://doi.org/10.1007/s11661-019-05582-6
Frazier, William E., Wang, Chao, Xu, Zhijie, Overman, Nicole R., Hu, Shenyang, and Joshi, Vineet V. Fri . "Recrystallization and Grain Growth Simulations for Multiple-Pass Rolling and Annealing of U-10Mo". United States. https://doi.org/10.1007/s11661-019-05582-6. https://www.osti.gov/servlets/purl/1808562.
@article{osti_1808562,
title = {Recrystallization and Grain Growth Simulations for Multiple-Pass Rolling and Annealing of U-10Mo},
author = {Frazier, William E. and Wang, Chao and Xu, Zhijie and Overman, Nicole R. and Hu, Shenyang and Joshi, Vineet V.},
abstractNote = {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.},
doi = {10.1007/s11661-019-05582-6},
journal = {Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science},
number = 2,
volume = 51,
place = {United States},
year = {Fri Dec 06 00:00:00 EST 2019},
month = {Fri Dec 06 00:00:00 EST 2019}
}

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