Flow stress characteristic of 1235 aluminum alloy treated by different purification methods was studied by dynamic thermo-simulation test. The effects of oxide inclusions on steady flow stress, peak ...stress, and true strain corresponding to peak stress were also examined in this study. The results showed that there is a steady flow feature in 1235 aluminum alloy during hot compression deformation. 1235 aluminum alloy with lower inclusion content shows higher strength, therefore, the plasticity and toughness are better and improve the hot-working character of the alloy. Therefore, reducing inclusion content is effective for improving the hot deformation character of aluminum foil (1235 aluminum alloy).
Microstructure evolution behavior of 1235 aluminum alloy under different deformation conditions was studied by hot compression simulation, along with OM, TEM. The law of microstructure evolution at ...hot deformation was also analyzed. The results showed that the dynamic recrystallization behavior of 1235 aluminum alloy was obvious during hot deformation. At higher deformation temperature or lower strain rate, the grain dislocation density was lower and grain boundaries tended to be straighter, therefore, the grains dynamic recrystallized more adequately. The recrystal grains were smaller and distributed uniformly at deformation temperature for 400°C and stress rate for 0.1s-1 with the average grain size for 54.03μm.
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