20th International Forgemasters Meeting - IFM 2017

Anenergy efficient methodcalled Forging Solidifying Metal (FSM) in two phase region, which applied for manufacturing special steel was proposed based on semi-solid forming technology (SSF).To verify its feasibility, the effects of deformation temperature and deformation methodson the microstructure of H13 were investigated experimentally.The bulky dendrites structure and shrinkage cavities can be eliminated when deformed at 1350℃ (0.1/s 50% compression).Microsegregationon the grains boundaries can be eliminated and the microstructure isrefined when deformation were carried out at 1350℃ (0.1/s 30% compression) following with0.1/s 30% compression at 1100℃. Therefore, the proposed method in this study would be a great breakthrough to manufacture qualified special steel with high efficient and low cost.