Abstract:
A mathematic model for dynamic and static recrystallization of
Mn18Cr18N steel is presented. Hot expanding-extrusion forming
and air cooling process of 600 MW retaining ring has been
simulated by the combination of thermos-coupled rigid
viscoplasitic FEM with this model, and grain size distribution
on cross-section of ring is shown. The essential results can be
provided for use of the new technique.
Key words: Retaining
ring Hot forming Microstructure evolution Finite element method
|