钢中下贝氏体组织的扫描隧道显微镜研究

STM study on fine structure of lower bainite in steels

在大气环境中利用扫描隧道显微镜 (STM)观察钢铁表面的精细组织结构。对照光学显微镜 (OM )、扫描电子显微镜 (SEM)、透射电子显微镜 (TEM)的观察结果 ,对STM观察所得的钢铁的组织形貌进行分析讨论。初步建立STM下图像形貌和组织之间的对应关系。利用STM优良的表面垂直分辨能力 。

Fine structures of lower bainite in steels are investigated in this work .Based on the observations using optical microscopy (OM),scanning electron microscopy (SEM) and scanning electron microscopy (STM),the relation betweem the STM image and structure of lower bainite in steels is established .With the high vertical resolution of STM,It is observed that bainitic ferrite have more corrosion resistance than martensite ferrite.