层错能高的金属，尾部不全位错会紧跟着领头不全位错来形核，因此层错区的宽

For metals with high stacking fault energy, incomplete tail dislocations will nucleate immediately following leading incomplete dislocations, so the width of the stacking fault zone is narrow, while for metals with low stacking fault energy, the opposite is true, leading incomplete dislocations nucleate Later, the stacking fault zone will appear, and after a period of time, the tail dislocation will not be completely nucleated, so the stacking fault zone is wide

For metals with high stacking fault energy, the tail incomplete dislocation will follow the lead incomplete dislocation to nucleate, so the width of the stacking fault area is narrow, but for metals with low stacking fault energy, it is completely opposite. After the nucleation of the lead incomplete dislocation, the stacking fault area will appear. After a period of time, the tail incomplete dislocation can nucleate, so the stacking fault area is wide

For metals with high stacking fault energy, the tail incomplete dislocation will nucleate next to the leading incomplete dislocation, so the width of stacking fault zone is narrow, while for metals with low stacking fault energy, it is completely opposite. After the leading incomplete dislocation nucleates, the stacking fault zone will appear, and after a period of time, the tail incomplete dislocation can nucleate, so the stacking fault zone is wider.