The substructure near the damage position was studied by EBSP, then vonbined with the relationship among substructure grain boundary sliding grain size and material deformation compatibility the mechanics of creep damage was discussed.

• 使用电子背散射衍射技术研究了不同损伤位置附近的亚结构形成情况，结合亚结构、晶界滑移、晶粒尺寸与材料变形协调性等材料变形特点，对蠕变损伤机理进行了探讨。