Microstructure and Mechanical Properties of Hot-Rolled Fe-Mn-C-Si TWIP Steel

被引:0
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作者
Li Zhang
Xiang-hai Liu
Kang-ying Shu
机构
[1] Hangzhou Aichi Engineering Vehicles Co Ltd,Department of Materials Science and Engineering
[2] China Jiliang University,undefined
关键词
TWIP steel; hot-rolling; microstructure; mechanical property; deformation twin;
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摘要
Mechanical properties and microstructural evolution of the hot-rolled Fe-Mn-C-Si TWIP steel were investigated and the deformation mechanism was analyzed. The results showed that the tensile strength and elongation were about 1 050 MPa and 60%, respectively. The hot-rolled steel had high specific energy absorption and impact toughness between −120 °C and 20 °C. Some inhomogeneous dislocation zones were observed in the undeformed steel. Lots of deformation twins and twin-dislocation interactions were observed in the deformed steel. TWIP effect was the major deformation mechanism for the excellent mechanical properties.
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页码:45 / 48
页数:3
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