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Indexed by:期刊论文

Date of Publication:2022-06-30

Journal:大连理工大学学报

Volume:51

Issue:5

Page Number:662-666

ISSN No.:1000-8608

Abstract:Based on commercial finite element analysis software MSC. Marc, a 3D
   finite element model for the 6-passes of roughing rolling process of
   GCr15 steel rod was developed. With the aid of user subroutine, the
   microstructure evolution model of GCrl5 steel was coupled with the
   thermalmechanical coupling FE model of roughing rolling process of rod
   to simulate the evolution of austenite grain size under different
   technological parameters. Simulation results show that austenite grains
   in the center of rolled piece become bigger with the increase of rolling
   temperature during the roughing rolling process. Mill speed has no
   influence on the evolution of grain size. Initial grain size and the
   adjustment of cleaning between rolls have a little effect on the
   evolution process of grain size, but have no effect on the grain size
   after the 6-passes of roughing rolling. The simulation results of the
   grain size in the interior of rolled piece under practical technological
   parameters are in good agreement with measured ones.

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