Multi-pass simulation of heavy plate rolling including Intermediate Forced Cooling
Thermomechanical Controlled Processing (TMCP) including accelerated cooling after the final hot rolling pass is a wellestablished technology, widely applied in HSLA steel plate production. However, there are still certain limitations, especially for thicker plate. The rolling schedule includes a long holding period (HP) after the roughing stage to allow the temperature to fall sufficiently for optimised TMCP during finishing. Intermediate 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 benefits. Multi-pass plane strain compression (PSC) tests have been performed on the thermomechanical compression (TMC) machine at Sheffield University including different severities of IFC. Clearly 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 thickness. However, some aspects of the gradients were addressed with tests using cold platens. The results have indeed shown that IFC can shorten the HP and reduce austenite grain growth and its variation across thick plate.
Steel plate rolling intermediate forced cooling plane strain compression recrystallisation grain growth finite element modelling temperature and strain distribution
B.Xiao E.J.Palmiere A.A.Howe H. C. Carey
Institute for Microstructural and Mechanical Process Engineering:The University of Sheffield (IMMPET Institute for Microstructural and Mechanical Process Engineering:The University of Sheffield (IMMPET Tata Steel Research Development &Technology,Swinden Technology Centre, Moorgate,Rotherham S60 3AR,UK
国际会议
The 6th International Conference on High Strength Low Alloy Steels(第六届高强度低合金钢国际会议HSLA Steels2011)
北京
英文
238-241
2011-05-31（万方平台首次上网日期，不代表论文的发表时间）