Modeling of Microstructure Evolution with Dynamic Recrystallization in Finite Element Simulations of Martensitic Steel

Baron, Thomas Josef; Khlopkov, K.; Pretorius, Thomas; Balzani, Daniel; Brands, Dominik; Schröder, Jörg

doi:10.1002/srin.201400576

Cited by 13 publications

(9 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Investigations of rolling parameter using finite element method were performed by Ding et al and it was found that rolling temperature has a more significant effect on dynamic recrystallization than rolling speed. Baron et al used a regression analysis method to determine the parameters of the dynamic recrystallization model and incorporated it into a finite element model to simulate the hot compression of high strength martensitic steel. These literatures provide valuable background for the modeling and simulation of DRX during steel bar hot rolling process in this study.…”

Section: Introductionmentioning

confidence: 99%

Modeling and Simulation of Dynamic Recrystallization Behavior in Alloyed Steel 15V38 during Hot Rolling

Wang

Chandrashekhara

Lekakh

et al. 2018

steel research int.

View full text Add to dashboard Cite

Dynamic recrystallization (DRX) occurring during hot rolling significantly affects the microstructural evolution and final mechanical properties of steel. In this study, single hot compression tests are performed at temperatures between 1000 and 1300 °C with strain rates between 0.01 and 15 s−1 to investigate dynamic recrystallization behavior of a 15V38 steel. Critical strains for initiation of dynamic recrystallization and peak strains are identified through the analysis of work hardening rate from the measured stress–strain results. Dynamic recrystallization is identified by the softening in the flow stress during plastic deformation and quantified as the difference between a calculated dynamic recovery curve and the measured stress–strain curve. Dynamic recrystallization is modeled using calculated critical strain, peak strain, Zener‐Hollomon (Z) parameter, and volume fraction of dynamic recrystallization. Subroutines accounting for dynamic recrystallization are developed and implemented into a three‐dimensional finite element model for hot rolling of a round bar. Simulation results show that dynamic recrystallization is distributed throughout the bar and exhibits a positive relationship with equivalent plastic strain. Temperature effects on dynamic recrystallization are also investigated using different rolling temperatures, and results show that the fraction of dynamic recrystallization is significantly increased as rolling temperature increases.

show abstract

Section: Introductionmentioning

confidence: 99%

Modeling and Simulation of Dynamic Recrystallization Behavior in Alloyed Steel 15V38 during Hot Rolling

Wang

Chandrashekhara

Lekakh

et al. 2018

steel research int.

View full text Add to dashboard Cite

show abstract

“…Initial austenite grain size was measured by microscopic analysis after quenching and an annealing treatment at T anneal = 823 K for 900 s. Resulting microstructure analysis shown in Fig. 2 lead to an average grain diameter of ݀ ̅ = 35 µm [10]. …”

Section: Methodsmentioning

confidence: 99%

Modelling of flow behaviour and dynamic recrystallization during hot deformation of MS-W 1200 using the phase field framework

et al. 2016

Self Cite

View full text Add to dashboard Cite

Abstract.A new simulation environment is developed to simulate the evolution of microstructure and the corresponding flow stress during rolling. An orientation dependent crystal plasticity hardening model is coupled to grain evolution-, recovery-and recrystallization kinetics within a phase field framework. Hardening and softening kinetics are treated consecutive to differentiate between individual effects. Simulation results are compared to hot compression tests at 1373 K with a strain rate of 1 s -1 .

show abstract

“…Despite such wide applicability, DT has not yet developed into a practical tool for microstructural control. This contrasts with the accompanying process of dynamic recrystallisation (DRX), which is routinely incorporated in hot working simulations and optimisation efforts [6,7]. Unlike DRX, the fundamental and technological aspects of DT are still being resolved [2,3,5].…”

Section: Introductionmentioning

confidence: 99%

Microstructural manifestation and kinetics of dynamic transformation in a W-modified 9%Cr steel

Mandal

Aashranth

Samantaray

et al. 2023

Materials Science and Technology

View full text Add to dashboard Cite

Dynamic transformation (DT) of austenite to ferrite is shown to occur in a W-containing 9%Cr steel during hot deformation across a wide range of strain rates. A new facet of DT, namely its dependency on process kinetics, is revealed by examining work-hardening rate and strain rate. The kinetics of DT is associated with competing processes of dislocation immobilisation and remobilisation, both of which have a complex dependence on strain rate. The microstructural manifestation of DT-ferrite is examined and contrasted with that of conventional ferrite on the basis on morphology. This contrast arises from different modes of transformation and resultant differences in crystallography. DT is placed in the practical context of thermo-mechanical processing by addressing issues of process control and stability.

show abstract

Modeling of Microstructure Evolution with Dynamic Recrystallization in Finite Element Simulations of Martensitic Steel

Cited by 13 publications

References 23 publications

Modeling and Simulation of Dynamic Recrystallization Behavior in Alloyed Steel 15V38 during Hot Rolling

Modeling and Simulation of Dynamic Recrystallization Behavior in Alloyed Steel 15V38 during Hot Rolling

Modelling of flow behaviour and dynamic recrystallization during hot deformation of MS-W 1200 using the phase field framework

Microstructural manifestation and kinetics of dynamic transformation in a W-modified 9%Cr steel

Contact Info

Product

Resources

About