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采用Ｈｏｐｋｉｎｓｏｎ杆加载技术和帽状试样，研究Ｍｏｎｅｌ合金在εｓ≈４．３×１０５ｓ－１的高应变速率条件下的应力－应变关系及塑性变形行为．实验及计算结果表明，塑性区（简称剪切带）内温度随剪切应变增加呈线性升高．透射电镜证实剪切带组织发生了动态再结晶，再结晶晶粒约为１７０ｎｍ．分析了剪切带中组织结构的演变过程，讨论了动态再结晶的机制
The Hopkinson bar loading technology and the cap sample were used to study the stress-strain relationship and plastic deformation behavior of Monel alloy at high strain rate εs≈4.3 × 105s-1. Experiments and calculation results show that the plastic zone (referred to as the shear zone) temperature increases linearly with the increase of shear strain. Transmission electron microscopy confirmed the occurrence of dynamic recrystallization of the shear band, recrystallized grains of about 170nm. The evolution of microstructure in shear zone was analyzed and the mechanism of dynamic recrystallization was discussed