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Multi-Pass Simulation of Heavy Plate Rolling Including Intermediate Forced Cooling

Journal of Iron and Steel Research(International) 2011年第S1期18卷 506-510页

作者： E.J.Palmiere A.A.Howe H.C.Carey Institute for Microstructural and Mechanical Process Engineering:The University of Sheffield (IMMPETUS) Sir Robert Hadfield BuildingMappin StreetSheffieldS1 3JDUK Tata Steel Research Development &Technology Swinden Technology CentreMoorgateRotherham S60 3ARUK

Thermomechanical Controlled Processing (TMCP) including accelerated cooling after the final hot rolling pass is a well-established technology,widely applied in HSLA steel plate ***,there are still certain limitations,especially for thicker *** rolling schedule includes a long holding period (HP) after the roughing stage to allow the temperature to fall sufficiently for optimised TMCP during *** Forced Cooling (IFC) applied during the HP can increase productivity by decreasing the required hold time,can restrict austenite grain growth,and can also improve the subsequent strain penetration in thick plate with further metallurgical ***-pass plane strain compression (PSC) tests have been performed on the thermomechanical compression (TMC) machine at Sheffield University including different severities of *** it is impossible to simulate all aspects of the temperature and strain gradients present in thick plates in laboratory specimens,and most of the tests were conducted at temperatures and strains calculated by Finite Element modelling as relevant to specific positions through the plate ***,some aspects of the gradients were addressed with tests using cold *** results have indeed shown that IFC can shorten the HP and reduce austenite grain growth and its variation across thick plate.

关键词： Steel plate rolling intermediate forced cooling plane strain compression recrystallisation grain growth finite element modelling temperature and strain distribution

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