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Hot Deformation Behavior of the 20?vol.% TiC/Cu-Al 2O 3 Composites

机译:20倍的热变形行为20?VOL。%TIC / CU-AL <下标> 2 O <下标> 3 复合材料

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Hot deformation behavior of the 20?vol.% TiC/Cu-Al~(2)O~(3)composite was studied using the Gleeble-1500D thermo-mechanical simulator with various strain rates at different deformation temperatures. The softening mechanism due to dynamic recrystallization was a feature of the high-temperature true stress–strain curves. The peak stress increased at the lower deformation temperature and the higher strain rate. Microstructure evolution was explored. Thermal deformation activation energy was calculated as 218.9?kJ/mol, and the constitutive equation was established. The processing map was constructed to obtain optimal processing domain of 700-850?°C and 0.001-0.04?s_(?1)for hot working.
机译:20?VOL。Vol.%TiC / Cu-Al〜(2)O〜(3)复合材料采用GLEEBLE-1500D热机械模拟器研究,不同变形温度下具有各种应变率的热机械模拟器。 由于动态再结晶引起的软化机制是高温真应力 - 应变曲线的特征。 峰值应力在较低的变形温度下增加和较高的应变速率。 探索了微观结构演变。 将热变形活化能量计算为218.9〜kj / mol,建立了本构方程。 构建处理图以获得700-850Ω°C和0.001-0.04Ω_(α1)的最佳处理结构域进行热工作。

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