A comprehensive study on the effect of high-temperature deformation level on microstructure development of austenitic stainless steel

被引：0
作者：
Rout, Matruprasad [1 ]
Ranjan, Ravi [2 ]
Anand, Kumar Aniket [3 ]
机构：
[1] Natl Inst Technol Tiruchirappalli, Dept Prod Engn, Trichy 620015, Tamil Nadu, India
[2] Tata Steel, Res & Dev Div, Jamshedpur, India
[3] SAIL, Res & Dev Ctr Iron & Steel, Ranchi, India
来源：
MATERIALS AT HIGH TEMPERATURES | 2025年 / 42卷 / 01期
关键词：
Grain boundary; steel; EBSD; deformation; microstructure; CSL; RECRYSTALLIZATION; MECHANISMS; TEXTURE;
D O I：
10.1080/09603409.2025.2453330
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Austenitic stainless steel has been deformed to different strain levels at high temperatures and electron back-scattered diffraction has been done at the centre of the deformed samples to study the microstructure. A low strain of 0.22 develops deformation substructures and does not contribute much to the change in microstructure. An increase in strain value develops equiaxed grains and at 900 degrees C, a necklace-type structure is observed. A decrease in average grain size with increased strain level is observed (except at 1200 degrees C). A high fraction of high-angle grain boundaries with a significant fraction of Sigma 3 boundaries is observed at high temperatures and high-strain levels. The texture intensity showed the formation of strong [101] and [001] fibres. However, the intensity distribution between [101] and [001] varies with strain level and deformation temperature. Finally, discussions on the effect of high-temperature deformation on microstructure and texture development have been presented.
引用
收藏
页码：25 / 38
页数：14
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