IN SITU OBSERVATION OF Z FORM PROPAGATION OF CRACKS IN 22Mn-13Cr-5Ni-0.2N STEEL
22Mn—13Cr—5Ni—0.2N钢裂纺Z字形扩展的TEM原位分析

Z form propagation of cracks in 22Mn- 13Cr-5Ni-0.2N steel has been investigated by means of in situ tensile test in TEM. The results show that the Z form propagation of a crack in the steel is formed by the alternate progress of the relative sliding of the {111}and the cleavage along {100}, and is determined by the relative orientation between outside force and crystal.