FE Analysis of Dynamical Recrystallization during the Seamless Tube Extrusion of Semicontinuous Casting Magnesium Alloy and Experimental Verification
| Autor: | Tao Lin, Yunteng Liu, Ji-xue Zhou, Yuansheng Yang, Zhu Yang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Technology Materials science seamless tube extrusion Chemical technology Metallurgy Recrystallization (metallurgy) Chemicals: Manufacture use etc TP200-248 02 engineering and technology TP1-1185 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences dynamic recrystallization semicontinuous az31 magnesium alloy Mechanics of Materials numerical simulation 0103 physical sciences General Materials Science Extrusion Physical and Theoretical Chemistry Magnesium alloy 0210 nano-technology |
| Zdroj: | High Temperature Materials and Processes, Vol 37, Iss 9-10, Pp 961-971 (2018) |
| ISSN: | 2191-0324 0334-6455 |
| Popis: | In this paper, empirical dynamic recrystallization (DRX) models for the semicontinuous AZ31 magnesium alloy were established based on the stress–strain curves and microstructure observations generated from hot compression tests. The DRX evolution during the seamless tube extrusion of the alloy was studied by numerical and experimental methods. The extruding temperature and the ram speed were two important parameters during the extrusion. With the increase of the two parameters, the volume fraction of DRX and the recrystallized grain size were observably increased. The predicted DRX fraction and grain size were in an excellent agreement with the experimental results. |
| Databáze: | OpenAIRE |
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