A model for the hot deformation of low-carbon steel
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An improved cellular automaton model of dynamic recrystallization and the constitutive model coupled with dynamic recrystallization kinetics for microalloyed high strength steels
2023, Journal of Materials Research and TechnologyA comparative study on hot deformation behaviours of low-carbon and medium-carbon vanadium microalloyed steels
2020, Journal of Materials Research and TechnologyCitation Excerpt :In research [2,8–13], it was found that the addition of carbon decreases the activation energy. While in investigations [14–19], it was found that the addition of carbon increases the hot deformation activation energy of steel. Given the disagreement on the effect of carbon as illustrated above, in this research, hot deformation tests were conducted for a 0.05 wt.
Microstructural and thermo-mechanical analysis of quench cracking during the production of bainitic-martensitic railway wheels
2014, Engineering Failure AnalysisCitation Excerpt :After 480 s into the first quenching stage (Fig. 5a), the temperature in the flange was predicted to be 590˚C and the internal stress was predicted to be approx. 150 MPa. For steels of similar compositions (carbon content, metallurgical phase and micro alloying elements) several studies have reported temperature dependant flow stress values between 120 MPa and 150 MPa for temperatures ranging from 600 °C and 850 °C [15–22]. Fig. 5a shows that the stresses at locations A and C are between 150 MPa and 200 MPa in the first quenching stage (600—850 °C) which are greater than the steel’s flow stress and can therefore likely to cause quench cracking and this finding is in agreement experimental quenching trials (Fig. 3).
Numerical simulation of microstructure evolution for SA508-3 steel during inhomogeneous hot deformation process
2014, Journal of Iron and Steel Research InternationalHigh temperature deformation of silicon steel
2012, Materials Chemistry and PhysicsCitation Excerpt :Such heterogeneous conditions are likely to exert a strong influence on the microstructure and texture formation during downstream thermomechanical processing. The above cited phenomena make the high temperature deformation of silicon containing steels quite different from the behaviour observed in conventional low-carbon steels [6]. The influence of deformation parameters on the transformation and texture evolution of Fe–Si single crystals has been the subject of interest of many researches, but there is a limited amount of information concerning the high temperature deformation of poly-textured electrical steels [7–13].
Prediction of 42CrMo steel flow stress at high temperature and strain rate
2008, Mechanics Research Communications