Abstract��The fault between the impurities containing Zr and matrix is not formed during the rolling process but are depend on the microstructure after rolling. In the steel which contain soft phase ferrite, the fault between the impurities and matrix is small. If the main microstructure in steel is hard band shape phase, the faults size is large. After observing the morphology and size of impurities, it can be seen that the center of impurities is different with the size. When the diameters of impurities exceed 5 ��m, ZrO��2 particles are observed in the center. ZrO particles are observed in the center when the diameter of impurities is smaller than 3 ��m. TiO��2, Al��2O��3 and MnS are precipitated and grow around oxide of Zr particles.
�����;����;�°���;������;������;����;����. ��ﯵ�̼������ּ�������о�[J]. �й������ڿ���, 2007, 25(3): 1-0.
CHEN Qing��feng;GUAN Yun;CHEN Bang��wen;WANG Fu��cheng�� XU Zhu��tao;YAN Xiang;LUO Guo��hua. Study of Impurities in Low Carbon Bainite Steel Containing Zr. Chinese Journal of Iron and Steel, 2007, 25(3): 1-0.
2007, Vol. 25 
