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Computer Model of Phase Transformation From HotDeformed Austenite in Niobium Microalloyed Steels

XU Yunbo , YU Yongmei , LIU Xianghua , WANG Guodong

钢铁研究学报(英文版)

Based on thermodynamics and kinetics, a new mathematical model was developed to calculate the CCT diagrams and the transformation kinetics in low carbon niobium steels, in which the effect of deformation on the degree of supercooling was taken into account. The undercooling caused by deformation is ...

关键词: low carbon niobium steel;thermodynamics;supercooling degree;continuous cooling transformation;computer model

Prediction of Rolling Load, Recrystallization Kinetics, and Microstructure During Hot Strip Rolling

XU Yunbo , YU Yongmei , LIU Xianghua , WANG Guodong

钢铁研究学报(英文版)

The recrystallization kinetics and grain size models were developed for the CMn and niobiumcontaining steels to describe the metallurgical phenomenon such as softening, grain growth, and strain accumulation. Based on the recrystallization kinetics equations, the mean flow stress and the rolling lo...

关键词: hot strip rolling;recrystallization;mean flow stress;strain accumulation;grain size