Abstract��The dynamic fracture toughness(KId) and characteristic of the ductile��brittle transition of steel 921A in various temperature were determined. The effect of low temperature of steel 921A were determined through dynamic curve and fracture appearance. It is shown that dynamic fracture toughness(KId) of the steel 921A is better. And the use temperature of steel 921A should higher than -60 ��.
���ױ�;��ׯ. 921A�ֶ�̬�������Լ��ʹ�ת��ķ���[J]. �й������ڿ���, 2006, 24(5): 0-5.
YU Zhao��bin;ZHANG Zhuang. Dynamic Fracture Toughness and Characteristic of Ductile��brittle Transition in Steel 921A. Chinese Journal of Iron and Steel, 2006, 24(5): 0-5.
2006, Vol. 24 