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The dynamic recrystallization (DRX) behavior of 42CrMo steel was studied by hot compressive tests and cellular automaton (CA) simulation. The experimental results showed that initial grain size besides deformation parameters has an obvious influence on dynamic recrystallization (DRX) behavior. It is found that the initial grain size not only influences the number of DRX nucleation site, but also the...
In this study, a 2D Cellular automaton (CA) model was developed to visually and quantitatively predict the microstructural evolution of magnesium alloy AZ31B during hot deformation. Hot compressive and metallographic tests were carried out to evaluate the CA model parameters including the work hardening (WH) coefficient, dynamic recovery (DRV) coefficient, nucleation rate and grain boundary mobility...
The microstructural evolution of an aged Ni-based superalloy under two-stage hot compressive deformation with different strain rates is investigated. In terms of strain rate, the hot compressive tests include two types: constant and stepped strain rates. For the first type, the strain rate remains constant during the whole hot compression, while for the second type, the hot compression process consists...
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