INVESTIGATION OF SURFACE RELIEF WITH BAINITE AND MARTENSITE BY SCANNING TUNNELING MICROSCOPY
贝氏体和马氏体浮突的扫描隧道显微镜研究

Scanning tunneling microscopy (STM) was first employed to study the surface relief accompanying bainite and martensite transformation in an Fe-C-Cr steel. With the exclusive vertical resolution of STM, a result indicates that the surface relief associated with bainite is a group of surface reliefs related to subplates, subunits and sub-subunits, and not of invariant plane strain (IPS) type, which is obviously different from that of martensite,and implying that bainite does not form by shear mechanism.