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研究了脉冲电流对 ２０９１铝锂合金超塑变形中动态再结晶及动力学的影响结果表明，脉冲电流加速动态再结晶，减小形核时的平均晶粒直径脉冲电流能加快位错墙的形成并使其角度增大，使再结晶形核率提高脉冲电流加快位错在晶界上的攀移及消失、减小形核界面两边的能量差，降低形核界面的迁移速率及再结晶形核的长大速率分析了脉冲电流作用下的动态再结晶动力学行为．
The effects of pulse current on the dynamic recrystallization and kinetics of superplastic deformation of 2091 Al-Li alloy were investigated. The results show that the impulse current can accelerate the dynamic recrystallization and reduce the average grain diameter pulse current during nucleation to accelerate the formation of dislocation walls And make its angle increase, the recrystallization nucleation rate increased pulsed current to accelerate the climbing and disappearance of dislocations on the grain boundary, reducing the energy difference between the two sides of the nucleation interface, reducing the migration rate of the nucleation interface and recrystallization The kinetics of dynamic recrystallization under pulsed current was analyzed for the rate of nuclear growth.