A Review of Large-Scale Simulations of Microstructural Evolution during Alloy Solidification

N Cusato, SA Nabavizadeh, M Eshraghi - Metals, 2023 - mdpi.com
During the past two decades, researchers have shown interest in large-scale simulations to
analyze alloy solidification. Advances in in situ X-ray observations of the microstructural …

[HTML][HTML] Controlling solute channel formation using magnetic fields

X Fan, N Shevchenko, C Tonry, SJ Clark, RC Atwood… - Acta Materialia, 2023 - Elsevier
Solute channel formation introduces compositional and microstructural variations in a range
of processes, from metallic alloy solidification, to salt fingers in ocean and water reservoir …

Heterogeneous materials: metastable and non-ergodic internal structures

DV Alexandrov, AY Zubarev - … Transactions of the …, 2019 - royalsocietypublishing.org
This issue is concerned with structural and phase transitions in heterogeneous and
composite materials, the effects of external magnetic fields on these phenomena and the …

On the origin of mosaicity in directionally solidified Ni-base superalloys

J Strickland, B Nenchev, K Tassenberg, S Perry… - Acta Materialia, 2021 - Elsevier
This article addresses the formation of low angle grain boundaries which give rise to
mosaicity, a phenomenon that has only recently received attention in the single crystal Ni …

Thermoelectric magnetohydrodynamic control of melt pool dynamics and microstructure evolution in additive manufacturing

A Kao, T Gan, C Tonry, I Krastins… - … Transactions of the …, 2020 - royalsocietypublishing.org
Large thermal gradients in the melt pool from rapid heating followed by rapid cooling in
metal additive manufacturing generate large thermoelectric currents. Applying an external …

[HTML][HTML] Study on the solutal convection during dendrite growth of superalloy under directional solidification condition

Y Zhang, J Zhou, Y Yin, X Ji, X Shen, Z Guo - Journal of Materials Research …, 2023 - Elsevier
The solutal convection is able to affect the dendrite growth and solute distribution during
directional solidification. The solutal convection is raised by the solute difference-caused …

Convection effect on solidification microstructure: dendritic arm spacing and microsegregation

PK Galenko - The European Physical Journal Special Topics, 2023 - Springer
Convection affect primary crystalline structure, particularly, the dendrite crystal velocity and
dendrite tip radius. The present work aims on the influence of the convective flow on the …

Moment‐based boundary conditions for straight on‐grid boundaries in three‐dimensional lattice Boltzmann simulations

I Krastins, A Kao, K Pericleous… - International Journal for …, 2020 - Wiley Online Library
In this article, moment‐based boundary conditions for the lattice Boltzmann method are
extended to three dimensions. Boundary conditions for velocity and pressure are explicitly …

Magnetic effects on microstructure and solute plume dynamics of directionally solidifying Ga-In alloy

A Kao, N Shevchenko, S He, PD Lee, S Eckert… - Jom, 2020 - Springer
The effects of applying a 0.2-T transverse magnetic field on a solidifying Ga-25 wt% In alloy
have been investigated through a joint experimental and numerical study. The magnetic …

Predicting concurrent structural mechanical mechanisms during microstructure evolution

P Soar, A Kao, N Shevchenko… - … of the Royal …, 2022 - royalsocietypublishing.org
The interdependence between structural mechanics and microstructure solidification has
been widely observed experimentally as a factor leading to undesirable macroscopic …