This research work aims to study the effect of 2wt%Mo on bainitic transformation kinetics and bainite morphology in 0.6wt%C-1.2wt%Si-1.0wt%Mn-0.2wt%Cr steel. Specimens are austenitized at 950°C rapidly cooled salt bath isothermally treated between 200°C–300°C for different time intervals. Another set specimens oil after an austenitization treatment then tempered temperature range 200°C–550°C. I...

On the incorporation of length scales associated with pearlitic and bainitic microstructures into a visco-plastic self-consistent model D. Canadinc a,∗,1, H. Sehitoglu a,1, H.J. Maier b,2, P. Kurath a,1 a University of Illinois at Urbana-Champaign, Department of Mechanical Science and Engineering, 1206 W. Green Street, Urbana, IL 61801, United States b University of Paderborn, Lehrstuhl f. Werk...

The recently developed nanobainitic steels show high strength as well as high ductility. Although this combination seems to be promising for fatigue design, fatigue properties of nanostructured bainitic steels are often surprisingly low. To improve the fatigue behavior, an understanding of the correlation between the nanobainitic microstructure and the fatigue limit is fundamental. Therefore, o...

Carbide-free bainitic (CFB) steels with a matrix of ferrite and thin layers retained austenite, to reduce the manufacturing costs, usually do not contain alloying elements. However, few reports were presented regarding effect elements on properties these steels. Thus, this study evaluates effects vanadium rare earth (Ce-La) microalloying structure, phase transformation kinetics, mechanical carb...

in this paper, effect of hydrogen diffusion on 2.25cr-1mo steel with ferritic-bainitic and martensitic microstructure has been investigated. hydrogen embrittlement of this steel was investigated by doing experimental such as delayed fracture and slow strain rate tests. result of this research was showed that the steel with martensitic  microstructure strongly affected by hydrogen diffusion and ...