论文部分内容阅读
With the help of electron back scattering diffraction techniques and field emission microscope, the misorientation and the precipitation environment of Goss grains in conventional grain-oriented steel were observed and investigated at the initial stage of secondary recrystallization. It reveals that the abnormal Goss grains have a high fraction of high angle boundaries ranging from 25 to 40 deg. The most important observation is that some of {110}<001> grains in matrix indicated higher particle density than their neighbor grains during final annealing at 875℃ before secondary recrystallization, which could create a favorable environment for their abnormal grain growth. Based on misorientation and precipitation results, the abnormal growth mechanism of Goss grains was sketched.
With the help of electron back scattering diffraction techniques and field emission microscope, the misorientation and the precipitation environment of Goss grains in conventional grain-oriented steel were observed and investigated at the initial stage of secondary recrystallization. It reveals that the abnormal Goss grains have a high fraction of high angle range ranging from 25 to 40 deg. The most important observation is that some of {110} <001> grains in matrix indicated higher particle density than their neighbor grains during final annealing at 875 ° C before secondary recrystallization, which could Based on misorientation and precipitation results, the abnormal growth mechanism of Goss grains was sketched.