Abstract
Dual-phase (DP) steels with different martensite contents were produced by subjecting a low carbon steel to various heat treatment cycles. In order to investigate the effect of dynamic strain aging (DSA) on mechanical properties, tensile specimens were deformed 3% at 300 °C. Room temperature tensile tests of specimens which deformed at 300 °C showed that both yield and ultimate tensile strengths increased, while total elongation decreased. The fatigue limit increased after pre-strain in the DSA temperature range. The effects of martensite volume fraction on mechanical properties were discussed.
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The authors would like to acknowledge with thanks Sharif University of Technology for financial support of this research.
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Molaei, M.J., Ekrami, A. The Effect of Dynamic Strain Aging on Subsequent Mechanical Properties of Dual-Phase Steels. J. of Materi Eng and Perform 19, 607–610 (2010). https://doi.org/10.1007/s11665-009-9429-3
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DOI: https://doi.org/10.1007/s11665-009-9429-3