The stress-strain behavior during hot deformation of hot-extruded SiCp/Al2014 composites was studied by isothermal compression tests in a temperature range of 350-500 °C and strain rate range of 0.001–1 s^-1. A processing map was constructed at a true strain of 0.6, and the corresponding microstructure evolution was characterized. The results showed that the flow stress increased with the decrease in temperature and increase in strain rate. These deformation phenomena were associated with different hot deformation mechanisms, including work hardening, dynamic recovery (DRV) and continuous dynamic recrystallization (CDRX). The instability of SiCp/Al2014 composites was more likely to arise at high strain rates and in the low temperature regions. Two optimal deformation processing windows were defined to the processing map: domain I (435–500 °C, 0.03–0.9 s^-1) and domain II (430–500 °C, 0.01–0.001 s^-1).

通过等温压缩试验在 350-500 °C 的温度范围和 0.001-1 s ^{-1 的}应变速率范围内研究了热挤压 SiCp/Al2014 复合材料在热变形过程中的应力-应变行为. 在 0.6 的真实应变下构建了加工图，并表征了相应的微观结构演变。结果表明，流变应力随着温度的降低和应变速率的增加而增加。这些变形现象与不同的热变形机制有关，包括加工硬化、动态回复 (DRV) 和连续动态再结晶 (CDRX)。SiCp/Al2014 复合材料的不稳定性更有可能在高应变率和低温区域出现。为加工图定义了两个最佳变形加工窗口：域 I (435–500 °C, 0.03–0.9 s ^-1 ) 和域 II (430–500 °C, 0.01–0.001 s ^-1 )。