The hot deformation behavior of as-cast 9Cr3W3Co oxide dispersion-strengthened (ODS) steel was investigated by Gleeble 3500 facility in the temperature range of 900–1,150℃ and at strain rates range of 0.01–10 s −1 . The constitutive equation and processing maps were established to describe this complex hot deformation process. The true stress–strain curves showed that the softening effects of dynamic recovery and dynamic recrystallization are stronger than the effect of work hardening with further increasing the temperature and strain. The optimal hot working parameters of 9Cr3W3Co-ODS steel are suggested to be T = 1,050–1,100°C and ε̇\dot{\varepsilon } = 0.03–0.3 s −1 .

中文翻译：

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9Cr3W3Co氧化物弥散强化钢的热变形行为及加工图

用Gleeble 3500设备在900–1,150℃的温度范围和0.01–10 s -1的应变率范围内研究了铸态9Cr3W3Co氧化物弥散强化（ODS）钢的热变形行为。建立了本构方程和加工图来描述这种复杂的热变形过程。真实的应力-应变曲线表明，随着温度和应变的进一步升高，动态恢复和动态再结晶的软化作用要强于加工硬化的作用。建议9Cr3W3Co-ODS钢的最佳热加工参数为T = 1,050–1,100°C和ε̇\ dot {\ varepsilon} = 0.03–0.3 s -1。