الفهرس 
1. IntroductionOnly 14 pages are availabe for public view
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Abstract
The application advantages of dual phase steels in automobile industries motivate further studies on the effect of processing parameters on the properties of dual phase steel. Trials were performed using a thin slab casting unit (TSC) in producing dual phase steels. The effect of inter-critical temperatures (790 and 800ْC), coiling temperatures (120, 150 and 180ْC) and cooling rate (113~136 ْC/Sec) on the final microstructure were investigated. Dual phase steels with the composition (in wt. %) 0.057 C, 0.277 Si, 1.38 Mn, 0.027 Nb, 0.036 P, 0.63 Cr 0.39 Al were produced in sheet thickness of 3.2 mm.Characterization of the dual phase steels mechanical properties in addition to fracture features were carried for different martensite volume fraction at quasi-static tensile loading and impact testing. The final mechanical properties were correlated with the different microstructure constituents.