Effect of Cold��rolled Microstructure for Crack Behavior of 15CrMnMoV Steel
YAN Shu��ting
College of Materials Science and Engineering Yanshan University,State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, Hebei, China
Abstract��Planar stress tensile equipment made by myself is applied. The crack propagation of tempered and cold��rolled microstructure of 15CrMnMoV steel is studied by SEM and TEM etc. The results show: the crack resistance of the cold��rolled specimens is higher than that of the original specimens. The crack lengths are measured accurately by complex method, and the relationships of D����a are plotted. The peak appear at the curve of the cold��rolled (��a=40 ��m) due to fracture of weak interface.
����ͤ. ������֯��15CrMnMoV�ְ������Ϊ��Ӱ��[J]. �й������ڿ���, 2008, 26(5): 9-0.
YAN Shu��ting. Effect of Cold��rolled Microstructure for Crack Behavior of 15CrMnMoV Steel. Chinese Journal of Iron and Steel, 2008, 26(5): 9-0.
2008, Vol. 26 
