FeCrAl中各条直线的斜率随团簇尺寸先减小后趋于饱和，在不同温度下，跃迁频率随团簇尺寸的增加整体下降。

In FeCrAl, in addition to the phase transition of the crack tip atoms, the matrix is prone to dislocation nucleation due to the influence of impurities such as Cr and Al atoms on the lattice, and a large number of small slip lines are generated, which are continuously blocked and turned during the crack growth process, and the slip lines on both sides are absorbed by the fracture surface.