| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a predicting method of metallic structure by which the metallic structure of a workpiece to be rolled can accurately be predicted. <P>SOLUTION: Since joint information F<SB>n</SB>having elapsed time information t every elapsed time of temperature T, strainε, a strain rateεwhich are successively changed from values before rolling to values after rolling are generated from the node information F<SB>F</SB>before rolling and the joint information F<SB>A</SB>after rolling from a rolling simulator 40 and at least one side of the recrystallization rate X and the average particle diameter d of the workpiece 28 after rolling is calculated on the basis of the increment every elapsed time unit along the streamline from an increment type structure predicting model 44, at least one side of the recrystallization rate X and the average particle diameter d of the workpiece 28 is calculated from the temperature T, the strainεand the strain rateεwhich are successively changed on the way of plastic deformation by rolling. The growth of the particles in the workpiece 28 is accurately estimated and the metallic structure is accurately predicted because prediction taking dynamic recrystallzation into the consideration is performed. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
