Abstract��The longitudinal fracture arosed in connecting nut for inlet flushing valve. The fracture analysis was made by means of microstructure, macrostructure, SEM, chemical composition, stress measurement and calculation. Experiment results showed that the fracture of the nut was originated from a variety of macro defects, micro defects both by founding and machining, as well as high residual stress.
���a��;������;��ʤӢ;��ͨ��. ��ϴ��������ĸ���ѷ���[J]. �й������ڿ���, 2008, 26(2): 55-0.
DENG Jian��qing;WANG Ming��zheng;LIU Sheng��ying;WANG Tong��bo. Fracture Analysis of Connecting Nut for Inlet Flushing Valve. Chinese Journal of Iron and Steel, 2008, 26(2): 55-0.
2008, Vol. 26 
