A dislocation density enhanced crystal plasticity finite element model for precipitation hardening behavior of aluminum alloys

2021 ◽  
Author(s):  
Chuin-Shan Chen ◽  
Tzu-Yao Chien ◽  
Yi-Liang Cheng ◽  
Hung-Wei Yen
Keyword(s):  
Finite Element ◽  
Aluminum Alloys ◽  
Dislocation Density ◽  
Finite Element Model ◽  
Crystal Plasticity ◽  
Precipitation Hardening ◽  
Element Model ◽  
Crystal Plasticity Finite Element ◽  
Hardening Behavior

Coupled Simulation of the Static Recrystallization in Hot Deformed Austenite on Mesoscale

2007 ◽  
Vol 558-559 ◽  
pp. 1213-1218
Author(s):  
Cheng Wu Zheng ◽  
Na Min Xiao ◽  
Dian Zhong Li ◽  
Yi Yi Li
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Crystal Plasticity ◽  
Microstructure Evolution ◽  
Static Recrystallization ◽  
Element Model ◽  
Stored Energy ◽  
Coupled Simulation ◽  
Crystal Plasticity Finite Element ◽  
Stored Energy Of Deformation

The kinetics and microstructure evolution during static recrystallization (SRX) of hot-deformed austenite in a low carbon steel are simulated by coupling a cellular automaton (CA) model with a crystal plasticity finite element model (CPFEM). The initial deformed characteristics, which include the stored energy of deformation and the crystallographic orientation induced by a plane strain hot compression are simulated using a crystal plasticity finite element model. These data are mapped onto the CA regular lattices as the initial parameters for SRX simulation. The coupled simulation results reveal that the heterogeneous distribution of the stored energy of deformation results in non-uniform nucleation and a slower kinetics. The influence of non-uniform distribution in stored energy on the SRX kinetics and microstructure evolution is discussed based on a microstructural path (MP) analysis.

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