2023 年 64 巻 9 号 p. 2202-2205
In the present study, we investigated a finite element simulation considering the martensite transformation and transformation-induced plasticity (TRIP) to predict the quench distortion of a cut-cylinder 4340 steel. The distortion predicted by the finite element simulation considering both the martensite transformation and TRIP showed good quantitative agreement with the measured results. We analyzed the effects of the martensite transformation and TRIP on the quench distortion separately and concluded that TRIP has a very critical impact on the quench distortion of cut-cylinder 4340 steel. In addition, the chemical composition and quenching condition were confirmed to be important factors influencing the quench distortion even though the same cut-cylinder sample was used.
