MODELING AND SIMULATION BASED ON THE CONSTITUTIVE EQUATION OF 25Cr2Ni4MoV STEEL FOR A SUPER-LARGE NUCLEAR-POWER ROTOR

被引：7
作者：
Ye, Li-yan [1 ]
Zhai, Yue-wen [1 ]
Zhou, Le-yu [1 ]
Jiang, Peng [1 ]
机构：
[1] Beijing Res Inst Mech & Elect Technol, Sci & Technol Dev & Innovat Ctr, 18 Xueqing Rd, Beijing 100083, Peoples R China
来源：
MATERIALI IN TEHNOLOGIJE | 2020年 / 54卷 / 01期
关键词：
25Cr2Ni4MoV; strain-compensated Arrhenius model; linear interpolation; high-temperature flow behavior; FLOW-STRESS; BEHAVIOR; TEMPERATURE; PREDICT; ALLOY;
D O I：
10.17222/mit.2019.136
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The constitutive equation of the 25Cr2Ni4MoV steel for a super-large nuclear-power rotor was studied using compression experiments within a temperature range of 1373-1523 K and a strain rate range of 0.001-0.1 s(-1) on a Gleeble-1500 thermal-mechanical simulation tester. Considering the application of the constitutive equation in a finite-element (FE) software, the linear-interpolation method incorporated in the FE software and the strain-compensated Arrhenius model were used to predict the flow stress of the 25Cr2Ni4MoV steel. It was found that the Arrhenius model was stronger in estimating the flow behavior compared to the linear-interpolation method. By means of user subroutines, the Arrhenius model was integrated into FE software DEFORM to simulate the isothermal compression. The comparison between the simulated and theoretical results confirmed the validity of the Arrhenius model.
引用
收藏
页码：91 / 97
页数：7
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