Formation of Retained Austenite and Effect of Retained Austenite on Elongation in Low Carbon Hot-Rolled High Strength Steels

Enhanced Low-Temperature Tensile Properties of Fe-14Cr-(4^|^sim;9)Ni Weld Metal by Retained Austenite

“…This research confirms that SIMT can effectively enhance the uniform elongation and strength-ductility balance (Ref [1][2][3][4][5][6][7][8][9][10]. By utilizing this benefit, TRIP steels have been developed.…”

High Strength Hot Rolled Steel Sheet for Automobile – A Review

“…It is, therefore, understood that the increase in total elongation is due to the increase in uniform elongation. The higher the stability of retained austenite which can be assessed as the amount of transformation of retained austenite during tensile deformation, the larger TS × T.El product can be obtained, as shown in Fig.2 [17]. It can therefore be concluded that the elongation of low alloy TRIP steels is governed not only by the amount of retained austenite but also by its stability.…”

Effect of deformation schedule on the microstructure and mechanical properties of a thermomechanically processed C-Mn-Si transformation-induced plasticity steel

“…[9] Moreover, it has also been observed that the volume fraction of retained austenite is related to the grain diameter of the polygonal ferrite; i.e., the decrease in the polygonal ferrite grain diameter leads to the increase in the volume fraction of the retained austenite. [10] In steels with the presence of bainite in the microstructure, the other aim of thermomechanical processing is to refine the bainite by the deformation in the nonrecrystallized austenite region. It has been reported that the bainite can be significantly refined by more than 50 pct deformation in the nonrecrystallized region.…”