Numerical simulation of microstructure evolution of high-purity tantalum during rolling and annealing

被引：2
作者：
Li, Wei [1 ,2 ]
Liang, Chen [1 ]
Zhang, Xudong [3 ]
机构：
[1] Xian Polytech Univ, Sch Urban Planning & Municipal Engn, Xian 710600, Peoples R China
[2] Xi An Jiao Tong Univ, State Key Lab Strength & Vibrat Mech Struct, Xian 710049, Peoples R China
[3] Xi An Jiao Tong Univ, Ctr High Performance Comp, Network Informat Ctr, Xian 710049, Peoples R China
来源：
MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING | 2022年 / 30卷 / 03期
关键词：
high purity tantalum; microstructure evolution; static recrystallization; grain growth; rolling and annealing; OLIGOCRYSTALLINE TANTALUM; HIGH-STRAIN; RECRYSTALLIZATION; DEFORMATION; BEHAVIOR; TEXTURE; LOCALIZATION;
D O I：
10.1088/1361-651X/ac4d78
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study, a unified model of thermoplastic deformation and the corresponding microstructure evolution for tantalum with high purity was first proposed by introducing the state variable equations of recrystallization fraction, average grain size, and grain growth. The subroutine of microstructure evolution model was programmed for embedding into the finite element simulation of tantalum plates upon rolling and annealing, and the parameters of microstructure evolution were obtained by fitting the experimental data. Our simulation results reveal the correlations among the microstructures, rolling reduction, annealing temperature and time. Based on these findings, a guideline for optimizing the microstructure of tantalum is proposed.
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页数：15
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