High Energy Rate Forming Induced Phase Transition in Austenitic Steel

2nd International Conference on Rheology and Modeling of Materials

Kovacs, T.^1 ; Kuzsella, L.^2

Obuda University, Banki Donat Faculty of Mechanical and Safety Engineering, Material Science Department, Budapest

1081, Hungary^1

Miskolc University, Faculty of Mechanical Engineering and Informatics, Material Structure and Technology Institute, Miskolc-Egyetemváros

3515, Hungary^2

关键词: Cold-formed;    Deformation mechanism;    Explosion impacts;    High plasticity;    Induced phase transition;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/790/1/012039/pdf
DOI  :  10.1088/1742-6596/790/1/012039

来源: IOP

【 摘 要 】

In this study, the effects of explosion hardening on the microstructure and the hardness of austenitic stainless steel have been studied. The optimum explosion hardening technology of austenitic stainless steel was researched. In case of the explosive hardening used new idea means indirect hardening setup. Austenitic stainless steels have high plasticity and can be cold formed easily. However, during cold processing the hardening phenomena always occurs. Upon the explosion impact, the deformation mechanism indicates a plastic deformation and this deformation induces a phase transformation (martensite). The explosion hardening enhances the mechanical properties of the material, includes the wear resistance and hardness [1]. In case of indirect hardening as function of the setup parameters specifically the flayer plate position the hardening increased differently. It was find a relationship between the explosion hardening setup and the hardening level.