Abstract��In order to analyze the reason of fracture of spring for fuel valve shutdown limiter, the analysis such as X��ray energy, hardness and microstructure were conducted. The results indicated that the fracture of spring was fatigue failure, it��s prime reason is tiny cracks of spring surface, which were produced in the hard��drawn process of spring steel. The failure of spring was casually and not in batches .
�����;������. ����ͣ���������ɶ��ѷ���[J]. �й������ڿ���, 2008, 26(3): 51-0.
L�� Feng��jun;FU Guo��ru. Fracture Analysis on Spring of Fuel Valve Shutdown Limiter. Chinese Journal of Iron and Steel, 2008, 26(3): 51-0.
2008, Vol. 26 
