ABSTRACT Based on high-temperature compression tests and focusing on the mechanical behaviour characteristics and microstructure evolution laws during high-temperature compression, laws relating to the strain-rate sensitivity index m and the activation energy of deformation Q-value at varying strain rates and deformation temperatures are clarified. Deformation mechanism maps involving dislocation quantity are plotted. Dislocation evolution laws and deformation mechanisms of the grain size with Burgers vector compensation, and the flow stress with modulus compensation during high-temperature deformation are predicted using the deformation mechanism maps.

中文翻译：

---

GH4742合金含位错高温变形机理图的理论预测

摘要 基于高温压缩试验，重点研究高温压缩过程中的力学行为特征和微观组织演化规律，以及不同应变速率和变形下应变速率敏感指数 m 和形变活化能 Q 值的相关规律。温度被澄清。绘制了涉及位错量的变形机制图。利用变形机制图预测了具有Burgers矢量补偿的晶粒尺寸的位错演化规律和变形机制，以及具有模量补偿的高温变形过程中的流动应力。