Effect of strain rate on the microstructure evolution and tensile behavior of medium manganese steel

被引：21

作者：

Mohapatra, Sudipta ^{[1
]}

Kumar, S. ^{[1
]}

Das, Siddhartha ^{[1
]}

Das, Karabi ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Met & Mat Engn, Kharagpur 721302, India

来源：

MATERIALS LETTERS | 2023年 / 330卷

关键词：

Strain rate; Medium manganese steel; Microstructure; Mechanical properties; MECHANICAL-PROPERTIES; DRASTIC IMPROVEMENT; FRACTURE MODE;

D O I：

10.1016/j.matlet.2022.133243

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the present study, the effect of strain rate on the microstructure evolution and tensile behavior of intercriti-cally annealed medium manganese steel is investigated. Tensile tests were performed on the annealed samples at strain rates of 1.33 x 10-4, 0.665 x 10-3 and 1.33 x 10-3 s-1. The amount of austenite to martensite trans-formation and dislocation density decrease with the increase in strain rates. The sample at the strain rate of 1.33 x 10-4 s- 1 exhibits superior tensile properties due to the synergistic influences of the transformation-induced plasticity (TRIP) effect and high dislocation density.

引用

页数：4

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