[WANG Zhong-tang,HU Jin-ke.Study on Micro-structure evolution of Dynamic recrystallization during tube extrusion of IN690 super alloy based on Cellular Automata[J].Rare Metal Materials and Engineering,2017,46(9):2512~2516.]
[doi] |
| Study on Micro-structure evolution of Dynamic recrystallization during tube extrusion of IN690 super alloy based on Cellular Automata |
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| Received:May 14, 2015 Revised:November 19, 2015 |
| DOI： |
| Key words: super alloy IN690 Cellular Automata Dynamic recrystallization Grain size |
| Foundation item:国家自然科学基金资助(项目号50834008) |
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| Abstract: |
| Dynamic recrystallization of IN690 super alloy during tube extrusion had been simulated based on Cellular Automata(CA). It had been determined that model of dislocation density and model of reply and model of nucleation and model of grain growth. It had been obtained that grain morphology and distribution and orientation and size during the process of deformation. The results presented that the grain size of the external wall was smaller than that of the middle under the same extrusion ratio. With the increasing of extrusion ratio, the grain size at the same site of the tube decreased. The relative errors of the grain sizes of simulation and experiment were less than 16.6%. |
