In 316 Ln Stainless Steel Dynamic And Static Recrystallization Deform Secondary Development Of The Model

With the application and development of the finite element numerical simulationof the plastic deformation, a variety of the simulation softwares and thesimulation methods have been attained more and more attention. DEFORM-3Dis one of the professional simulation softwares used for the metal forming,which is able to accurately simulate the distribution of the amount of thedeformation fields, achieve the prediction and optimization of the formingprocess, and achieve the integration of simulation. But this kind of software isnot perfect in the microstructure simulation function. In this paper, themicrostructure module of DEFORM-3D simulation software is developed, so itcan predict the material microstructure evolution during the deformation. Theresult has the important theoretical significance and values in the application.In this paper,316LN austenitic stainless steel dynamic and staticrecrystallization models are compiled and embedded into the DEFORMsoftware, in order to achieve the process simulation and forecast themicrostructure evolution. Firstly the calculation process about316LN stainlesssteel dynamic, static recrystallization models is designed, and the correspondingprogram modules are prepared with the computer language-Absoft Fortran, viadata interface to complete the DEFORM secondary development. Finally, therecrystallization fractions and grain sizes are obtained with the simulation of theDEFORM, and they are related to the values of strain, strain rate andtemperature field parameters. The simulation results and the experimental resultscoincide with each other. And the final result proves the secondary developmentmade in this article is correct.