Hot Deformation Behavior of a New Nuclear Use Reduced Activation Ferritic/Martensitic Steel

被引：0

作者：

Chao Liu ^{[1
]}

MingChun Zhao ^{[1
]}

Tuguldur Unenbayar ^{[1
]}

YingChao Zhao ^{[1
]}

Bin Xie ^{[1
]}

Yan Tian ^{[1
]}

YiYin Shan ^{[2
]}

Ke Yang ^{[2
]}

机构：

[1] School of Material Science and Engineering, Central South University

[2] Key Laboratory of Nuclear Materials and Safety Assessment,Institute of Metal Research,Chinese Academy of Sciences

来源：

ActaMetallurgicaSinica(EnglishLetters) | 2019年 / 32卷 / 07期

关键词：

Reduced activation ferritic/martensitic steel; Hot deformation; Flow curve; Constitutive equation; Processing map;

D O I：

暂无

中图分类号：

TL50 [一般性问题];

学科分类号：

082701 ;

摘要：

The hot deformation behavior and workability of a new reduced activation ferritic/martensitic steel named SIMP steel for accelerator-driven system were studied.The flow curve and its microstructure were studied at 900-1200℃ and strain rate range of 0.001-10 s-1.The results showed that the deformation behavior of the SIMP steel during hot compression could be manifested by the Zener-Hollomon parameter in an exponent-type equation.Based on the obtained constitutive equation,the calculated flow stresses were in agreement with the experimentally measured ones,and the average activity energies QDRV and QHW for the initiation of dynamic recrystallization and the peak strain were calculated to be 476.1 kJ/mol and 462.7 kJ/mol,respectively.Furthermore,based on the processing maps and microstructure evolution,the optimum processing condition for the SIMP steel was determined to be 1050-1200 ℃/0.001-0.1 s-1.

引用

页码：825 / 834

页数：10