New finite element developments for the full field modeling of microstructural evolutions using the level-set method

Scholtes, Benjamin; Shakoor, Modesar; Settefrati, Amico; Bouchard, Pierre‐Olivier; Bozzolo, Nathalie; Bernacki, Marc

doi:10.1016/j.commatsci.2015.07.042

Cited by 60 publications

(73 citation statements)

References 38 publications

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“…Possible improvements would be to check whether a unique value of k can really describe the behavior of all types of grains and to check how far the proportionality relationship of Equation (5) is valid. Both issues are non-trivial, but could be investigated using either 3D microscopy, for example near-field HEDM [20], or by generating synthetic microstructures with a controlled initial twin topology and then evolving them with a full field numerical approach, for example in a finite element context, as already implemented for grain growth in a level-set framework [26][27][28].…”

Section: Discussion Of the Relevance Of The New Mean Field Modelmentioning

confidence: 99%

Evolution of the Annealing Twin Density during δ-Supersolvus Grain Growth in the Nickel-Based Superalloy Inconel™ 718

Jin

Bernacki

Agnoli

et al. 2015

Metals

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Abstract:Grain growth experiments were performed on Inconel™ 718 to investigate the possible correlation of the annealing twin density with grain size and with annealing temperature. Those experiments were conducted at different temperatures in the δ supersolvus domain and under such conditions that only capillarity forces were involved in the grain boundary migration process. In the investigated range, there is a strong inverse correlation of the twin density with the average grain size. On the other hand, the twin density at a given average grain size is not sensitive to annealing temperature. Consistent with previous results for pure nickel, the twin density evolution in Inconel™ 718 is likely to be mainly controlled by the propagation of the pre-existing twins of the growing grains; i.e., the largest ones of the initial microstructure. Almost no new twin boundaries are created during the grain growth process itself. Therefore, the twin density at a given average grain size is mainly dependent on the twin density in the largest grains of the initial microstructure and independent of the temperature at which grains grow. Based on the observations, a mean field model is proposed to predict annealing twin density as a function of grain size during grain growth.

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Section: Discussion Of the Relevance Of The New Mean Field Modelmentioning

confidence: 99%

Evolution of the Annealing Twin Density during δ-Supersolvus Grain Growth in the Nickel-Based Superalloy Inconel™ 718

Jin

Bernacki

Agnoli

et al. 2015

Metals

Self Cite

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“…Two approaches are used to create digital microstructures in this case. The first, uses the classical Voronoi tessellation combined with the level set method [70]. The second, is much more complex, expensive, and time consuming and uses data from the synchrotron to reconstruct 3D structures.…”

Section: Methods Of Synthetic Generation Of Microstructuresmentioning

confidence: 99%

Digital/virtual microstructures in application to metals engineering – A review

Madej

2017

Archives of Civil and Mechanical Engineering

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“…The memory consumption and the domain superimposition with time ( Fig. 7) were studied in order to compare our implementation to global level-set (GLS) approaches from literature [11,15]. To determine the frequency of domain superimposition comparable to the number of GLS, we added up the number of grid points used in all our sub-domains and divided it by the size of the entire domain.…”

Section: Memory Consumptionmentioning

confidence: 99%

A highly efficient 3D level-set grain growth algorithm tailored for ccNUMA architecture

Mießen¹,

Velinov²,

Gottstein³

et al. 2017

Modelling Simul. Mater. Sci. Eng.

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A highly efficient simulation model for 2D and 3D grain growth and recrystallization was developed based on the level-set method. The model introduces modern computational concepts to achieve excellent performance on parallel computer architectures. Strong scalability was measured on ccNUMA architectures. To achieve this, the proposed approach considers the application of local level-set functions at the grain level. Ideal and non-ideal grain growth was simulated in 3D with the objective to study the evolution of statistical representative volume elements in polycrystals. In addition, microstructure evolution in an anisotropic magnetic material affected by an external magnetic field was simulated.

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New finite element developments for the full field modeling of microstructural evolutions using the level-set method

Cited by 60 publications

References 38 publications

Evolution of the Annealing Twin Density during δ-Supersolvus Grain Growth in the Nickel-Based Superalloy Inconel™ 718

Evolution of the Annealing Twin Density during δ-Supersolvus Grain Growth in the Nickel-Based Superalloy Inconel™ 718

Digital/virtual microstructures in application to metals engineering – A review

A highly efficient 3D level-set grain growth algorithm tailored for ccNUMA architecture

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