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- W2367137380 abstract "The process of multidirectional upsetting of 7075 aluminium alloy was numerically simulated using a finite element software to predict the recrystallized microstructure and grain size. The method of combination of finite element simulation and experiment was employed to investigate the variation of microstructure and grain size and tensile test at room temperature was carried out for the alloy upset for one pass to five passes. The simulation results show that the grain size in the central area reduces remarkably for the sample after five upsetting passes,which reduces from 40 μm to 17 μm. The effect of the grain refinement weakens gradually with the increasing of the pass number. The result of comparing the simulated value with the experimental observation demonstrates that a good agreament in grain refinement between the two is obtained and the tensile strength increases from 547 MPa to 665 MPa with the reduction of area increasing from 7. 1% to 28. 4% for the alloy after five upsetting passes,for which the deep and large dimples on the tensile fracture are observed." @default.
- W2367137380 created "2016-06-24" @default.
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- W2367137380 date "2014-01-01" @default.
- W2367137380 modified "2023-09-25" @default.
- W2367137380 title "Prediction of dynamic recrystallized grain size of 7075 aluminum alloy prepared by multidirectional upsetting" @default.
- W2367137380 hasPublicationYear "2014" @default.
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