SUN Guo-feng1, JIANG Zhao-xi2, GU Ming-jie1, WANG Hui1
��1.Haiyan Guojian Testing Technology Co.,Ltd., Haiyan 314300, China 2.China National Center for Quality Supervision and Test of Standard Parts, Haiyan 314300, China��
Abstract��The cracking of one elastic washer was observed after a period of time of use. The failure of washer was comprehensively analyzed by macroscopic inspection, fracture scanning, metallographic examination, hardness test and chemical composition analysis. The results showed that the metallurgical property of washer met the relevant requirements. However, hydrogen existed in the matrix of elastic washer, which caused the delayed hydride cracking under stress effect in service process.
����壬 ����ϲ�� �����磬 �� ��. ���Ե�Ȧ����ʧЧ����[J]. �й������ڿ���, 2015, 33(4): 53-55.
SUN Guo-feng, JIANG Zhao-xi, GU Ming-jie, WANG Hui. Analysis of cracking failure of elastic washer. Chinese Journal of Iron and Steel, 2015, 33(4): 53-55.
2015, Vol. 33 
