Advanced high strength steels have been developed with the goal of simultaneously increasing the strength and elongation and thus achieving properties such as weight loss and increased impact energy. In recent years, research has focused on the presence of a meta-stable austenite, which, due to the occurrence of plastic deformation due to deformation during deformation, increases elongation. However, in order to increase occupant safety, it is necessary to investigate the deformation behavior of these steels during strain strain at high strain rates. Therefore, this study aimed to investigate the effect of high strain on the deformation behavior of a quenched and partitioned steel. For this purpose, the casting of the steel with the required chemical composition was carried out. After homogenization and forging of the samples, the thermal cycle of quenched steel production and segmentation with quench temperatures and different segments with the aim of achieving the maximum austenite percentage applied Became By examining the results of the X-ray diffraction test, it was found that the maximum percentage of pseudosuperated austenite in the quench temperature was 275 ° C and the 400 ° C fractionation temperature was 19.4 ± 1.8%. The maximum austenite percentage at a low strain rate resulted in a final elasticity increase of 23 ± 1%, with a final strength of 1616 ± 17 MPa, which resulted in an appropriate strength and elasticity combination. The results of high-speed strain test showed that the sample containing quasi-stable austenite was much more energy absorbed than the quench sample and was deposited during rapid deformation due to its high workability and the possibility of deformation due to deformation in austenite. By increasing the amount of velocity The shape of the deformation increases with the requirement that the cracks do not expand in the whole sample.