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用透射电镜和高分辨率电镜研究了Fe17Mn5Si10Cr5Ni合金的应力诱发εM形态。生长初期εM为厚约20nm的薄片,它在长度方向上是不连续的,间断区为各生长单元的前沿区。生长初期的εM薄片在交叉时可利用本身的间断区而相互贯穿,且不留下交互作用痕迹,由εM薄片合并成宽大的εM。这种结构特点决定了宽大的εM薄片交互作用的复杂性。
The stress-induced εM morphology of Fe17Mn5Si10Cr5Ni alloy was investigated by TEM and high-resolution electron microscopy. At the beginning of growth, εM is a thin film with a thickness of about 20nm, which is discontinuous in the length direction and the discontinuous area is the frontal area of each growth unit. At the beginning of growth, the εM sheets can cross each other by using their own discontinuities and leave no trace of interaction, resulting in the integration of εM sheets into a large εM. This structural characteristic determines the complexity of the interaction of a large εM sheet.