由于材料具有一定的温度,使得点阵原子在平衡位置附近做热振动,并使其具有一定的几率穿过势垒跃迁到另一平衡位置。讨论了FeCrAl不同原子类型空位的跃迁行为,计算了迁移势垒大小。
Because the material has a certain temperature, the lattice atoms do thermal vibration near the equilibrium position, and make it have a certain probability to cross the barrier to another equilibrium position. The transition behavior of FeCrAl vacancies of different atomic types is discussed, and the size of migration barrier is calculated.