Abstract
Tensile tests of TWIP steels of two compositions are performed in the strain rate range of 10−5 – 103 s−1. Results indicate that steel 1# does not exhibit TWIP effect but deformation-induced martensitic transformation appears only. There exists TWIP effect in steel 3#. Tensile properties at room temperature are sensitive to strain rate in the studied strain rate ranges. Analysis on the relationship between strain-hardening exponent and strain rates shows that strain-induced martensitic transformation and formation of twins during deformation have significant influence on their strain-hardening behavior.
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Foundation Item: Item Sponsored by National Natural Science Foundation of China (50671061)
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Xiong, Rg., Fu, Ry., Su, Y. et al. Tensile Properties of TWIP Steel at High Strain Rate. J. Iron Steel Res. Int. 16, 81–86 (2009). https://doi.org/10.1016/S1006-706X(09)60015-7
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DOI: https://doi.org/10.1016/S1006-706X(09)60015-7