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

被引：15
|
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.
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页数：4
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