STM STUDY ON THE SURFACE RELIEF EFFECTS ASSOCIATED WITH WIDMANSTATTEN FERRITE
魏氏组织表面浮突的扫描隧道显微镜研究

Surface relief accompanying Widmanstatten ferrite formation in an Fe-0.37Calloy was investigated by scanning tunneling microscopy (STM). It was discovered that the surface relief due to Widmanstatten ferrite formation appears to be of tent-shaped type, or complex type.The evolution of surface relief of Widmanstatten ferrite can be more interpreted by ledgewisegrowth mechanism rather than by displacive mechanism. The height of relief is 70-450 nm, and the maximum shape deformation is ca. 0.36.