Phase-field modeling of microstructure evolution: Recent applications, perspectives and challenges

D Tourret, H Liu, J LLorca - Progress in Materials Science, 2022 - Elsevier
We briefly review the state-of-the-art in phase-field modeling of microstructure evolution. The
focus is placed on recent applications of phase-field simulations of solid-state microstructure …

Grain growth competition during melt pool solidification—Comparing phase-field and cellular automaton models

SM Elahi, R Tavakoli, I Romero, D Tourret - Computational Materials …, 2023 - Elsevier
A broad range of computational models have been proposed to predict microstructure
development during solidification processing but they have seldom been compared to each …

In situ observation of solidification patterns in diffusive conditions

S Akamatsu, H Nguyen-Thi - Acta Materialia, 2016 - Elsevier
We present a review of recent in situ experimentation studies of solidification front patterns
and microstructures in alloys. Front-tracking diagnostics and real-time observation methods …

Influence of macroscopic interface curvature on dendritic patterns during directional solidification of bulk samples: experimental and phase-field studies

FL Mota, K Ji, LS Littles, R Trivedi, A Karma, N Bergeon - Acta Materialia, 2023 - Elsevier
The envelope of the solidification front naturally develops a macroscopic curvature in a
multitude of solidification processes. However, its effect on dendritic microstructure formation …

Cell invasion during competitive growth of polycrystalline solidification patterns

Y Song, FL Mota, D Tourret, K Ji, B Billia… - Nature …, 2023 - nature.com
Spatially extended cellular and dendritic array structures forming during solidification
processes such as casting, welding, or additive manufacturing are generally polycrystalline …

Impact of gravity on directional solidification of refined Al-20wt.% Cu alloy investigated by in situ X-radiography

H Soltani, F Ngomesse, G Reinhart… - Journal of Alloys and …, 2021 - Elsevier
Gravity effects such as natural convection in the liquid phase and buoyancy forces acting on
the solid phase have a strong influence on the grain structure and microstructure formation …

Study on the dendritic growth and grain boundary formation in the suddenly expanded cross-section of single crystal superalloy during directional solidification …

C Zhang, Y Zhou, C Shi, H Zhou, C Shen, H Yu… - Journal of Manufacturing …, 2024 - Elsevier
The dendritic growth behavior at the suddenly expanded cross-section of single crystal
blades dramatically affects the defects formation. In this work, the dendrite growth …

On the nature of hexagonality within the solidification structure of single crystal alloys: Mechanisms and applications

J Strickland, B Nenchev, S Perry, K Tassenberg, S Gill… - Acta Materialia, 2020 - Elsevier
Primary spacing is a key phenomenon during solidification of single crystal alloys. It
determines microsegregation, defect formation, the time required to solutionise the solidified …

Oscillatory cellular patterns in three-dimensional directional solidification

D Tourret, JM Debierre, Y Song, FL Mota, N Bergeon… - Physical Review E, 2015 - APS
We present a phase-field study of oscillatory breathing modes observed during the
solidification of three-dimensional cellular arrays in microgravity. Directional solidification …

Thermal-field effects on interface dynamics and microstructure selection during alloy directional solidification

Y Song, D Tourret, FL Mota, J Pereda, B Billia… - Acta Materialia, 2018 - Elsevier
We carry out three-dimensional phase-field simulations to model unique experimental
observations of cellular and dendritic solidification structures formed under diffusive growth …