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Perdahcioglu, Emin Semih
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2022Periodic Homogenization in Crystal Plasticity
- 2020An RVE-Based Study of the Effect of Martensite Banding on Damage Evolution in Dual Phase Steelscitations
- 2019Prediction of void growth using gradient enhanced polycrystal plasticitycitations
- 2018Investigation of microstructural features on damage anisotropy
- 2018Investigation of anisotropic damage evolution in dual phase steels
- 2017Implementation and application of a gradient enhanced crystal plasticity modelcitations
- 2017Numerical investigation of void growth with respect to lattice orientation in bcc single crystal structure
- 2016Constitutive modeling of hot horming of austenitic stainless steel 316LN by accounting for recrystallization in the dislocation evolution
- 2013Modeling of the Austenite-Martensite Transformation in Stainless and TRIP Steelscitations
- 2013Strain direction dependency of martensitic transformation in austenitic stainless steels: The effect of gamma-texturecitations
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document
Constitutive modeling of hot horming of austenitic stainless steel 316LN by accounting for recrystallization in the dislocation evolution
Abstract
Hot compression test data taken from Zhang [1] of metastable austenitic stainless steel AISI 316LN over a range of strain rates and temperatures shows typical dynamic recovery and recrystallization behavior. It is proposed to model this behavior by incorporating not only the hardening and recovery into the Bergstrom dislocation evolution equation, but also the recrystallization. It is shown that the initial mechanical response before recrystallization can be accurately represented by assuming that the mean free path evolves as the microstructure evolves from homogeneously spaced dislocations to cell-pattern. Results show that this novel continuum mechanical model can predict the observed behavior, showing a good match to the experimental data and capturing the transition from recrystallization to (almost) no recrystallization.