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Abstract: New technological systems, different from the original
rolling conditions, are mentioned by the simulation of the
microstructural evolution of wire/rod rolling and combination with
controlled rolling theory. Simulation results show that it is helpful to
reduce the grain size of austenite at the final pass for changing the
original rolling processes such as decreasing deformation temperatures
at all passes or at finish rolling block, increasing the strain rate at
final pass etc. The visual program for simulation is developed and makes
simulating process convenient so much. In addition, it is effective and
economical to optimize the rolling processes. During controlled rolling,
proper control can prepare good microstructure for the later cooling
process and the comprehensive mechanical properties of product is also
advanced.
Key words: Controlled rolling Grain size Dynamic recrystallization
Static recrystallization
Metadynamic recrystallization
CLC No: TG304
国家自然科学基金资助项目(50035010，5007507).
Received 20020830, received in revised form 20021029
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