The softening behavior of Inconel 718 alloy at different temperatures was studied using two- stage interrupted compression method on Gleeblel500D thermal stimulator, and the 2% offset method was applied to analyze the...The softening behavior of Inconel 718 alloy at different temperatures was studied using two- stage interrupted compression method on Gleeblel500D thermal stimulator, and the 2% offset method was applied to analyze the experimental dates. Finally, the static reerystallizafion fraction was obtained, At the same times, optical microscope （OM） and transmission electron microscopy （TEM） were employed to investigate the microstructure characteristic. The experimental results showed that the recrystallization was more sensitive to temperature than holding time. The reerystaUization process finished quickly above 1 050℃, and significantly prolonged below 1 025℃. Additionally, the dynamical model of static recrystallization follows the Avrami equation. The nucleating mechanism was characterized by bulging at grain boundary and merging of sub-grain.展开更多
文摘The softening behavior of Inconel 718 alloy at different temperatures was studied using two- stage interrupted compression method on Gleeblel500D thermal stimulator, and the 2% offset method was applied to analyze the experimental dates. Finally, the static reerystallizafion fraction was obtained, At the same times, optical microscope （OM） and transmission electron microscopy （TEM） were employed to investigate the microstructure characteristic. The experimental results showed that the recrystallization was more sensitive to temperature than holding time. The reerystaUization process finished quickly above 1 050℃, and significantly prolonged below 1 025℃. Additionally, the dynamical model of static recrystallization follows the Avrami equation. The nucleating mechanism was characterized by bulging at grain boundary and merging of sub-grain.
