The hot deformation behavior of GH3535 superalloy was investigated by hot compression tests in the temperature range of 1000-1200 °C and strain rate range of 0.01-50 s-1. The activation energy is about 356.3 k J/...The hot deformation behavior of GH3535 superalloy was investigated by hot compression tests in the temperature range of 1000-1200 °C and strain rate range of 0.01-50 s-1. The activation energy is about 356.3 k J/mol, and the flow curves and processing map were developed on the basis of experimental data. The processing map exhibits a stable domain which occurs in the strain rate range of 0.01-1 s-1 at all the temperatures and a instable domain which occurs in the strain rate range of 1-50 s-1. Microstructural observations reveal that the full dynamic recrystallization（DRX） occurs in the conditions of（1150 °C, 0.01 s-1）,（1200 °C, 0.01 s-1） and（1200 °C, 0.1 s-1） with different grain sizes and undissolved carbides. The flow localization and cracks occur in the regime of flow instability.展开更多
基金Project(XDA02040000)supported by the Strategic Priority Research Program of the Chinese Academy of Sciences
文摘The hot deformation behavior of GH3535 superalloy was investigated by hot compression tests in the temperature range of 1000-1200 °C and strain rate range of 0.01-50 s-1. The activation energy is about 356.3 k J/mol, and the flow curves and processing map were developed on the basis of experimental data. The processing map exhibits a stable domain which occurs in the strain rate range of 0.01-1 s-1 at all the temperatures and a instable domain which occurs in the strain rate range of 1-50 s-1. Microstructural observations reveal that the full dynamic recrystallization（DRX） occurs in the conditions of（1150 °C, 0.01 s-1）,（1200 °C, 0.01 s-1） and（1200 °C, 0.1 s-1） with different grain sizes and undissolved carbides. The flow localization and cracks occur in the regime of flow instability.
