Constitutive equation and model validation for 33Cr23Ni8Mn3N heat-resistant steel during hot compression

Zhongman Cai; Hongchao Ji; Weichi Pei; Baoyu Wang; Xiaomin Huang; Yiming Li

Results in Physics (Dec 2019)

Constitutive equation and model validation for 33Cr23Ni8Mn3N heat-resistant steel during hot compression

Zhongman Cai,
Hongchao Ji,
Weichi Pei,
Baoyu Wang,
Xiaomin Huang,
Yiming Li

Affiliations

Zhongman Cai: College of Mechanical Engineering, North China University of Science and Technology, Tangshan 063210, China
Hongchao Ji: College of Mechanical Engineering, North China University of Science and Technology, Tangshan 063210, China; National Center for Materials Service Safety, University of Science and Technology Beijing, Beijing 100083, China; School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China; Corresponding authors at: College of Mechanical Engineering, North China University of Science and Technology, Tangshan 063210, China.
Weichi Pei: College of Mechanical Engineering, North China University of Science and Technology, Tangshan 063210, China; School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China
Baoyu Wang: School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China; Corresponding authors at: College of Mechanical Engineering, North China University of Science and Technology, Tangshan 063210, China.
Xiaomin Huang: College of Mechanical Engineering, North China University of Science and Technology, Tangshan 063210, China
Yiming Li: College of Mechanical Engineering, North China University of Science and Technology, Tangshan 063210, China

Journal volume & issue: Vol. 15

Abstract

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In order to more accurately predict the plastic flow behavior of 33Cr23Ni8Mn3N heat-resistant steel, it provides a good foundation for numerical simulation. The selection of constitutive models is crucial. The Gleeble-1500D thermal simulation tester was used to perform thermal compression experiments on 33Cr23Ni8Mn3N heat-resistant steel under different deformation conditions. Based on the experimental data, the Johnson-Cook (JC), Fields-Backofen (FB) constitutive models and their modified constitutive models are established and compared. The characteristics of JC model, FB model, modified JC (m-JC) model, modified FB (m-FB) model and strain-compensated Arrhenius (strain-compensated Arr) model are demonstrated. It is determined that the strain-compensated Arr model has the best accuracy for predicting the thermal deformation behavior of 33Cr23Ni8Mn3N heat-resistant steel. In addition, finite element development was carried out and programming was performed using Absoft Pro Fortran 8.0 software. Various modified models are embedded in Deform-3D for numerical simulation comparison. The results of numerical simulation show that the strain-compensated Arr model is more suitable for finite element simulation of 33Cr23Ni8Mn3N heat-resistant steel. Keywords: 33Cr23Ni8Mn3N, Johnson-Cookmodel, Thermal deformation, Constitutive equation, Fields-Backofen model

Published in Results in Physics

ISSN: 2211-3797 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Physics
Website: http://www.journals.elsevier.com/results-in-physics/

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