Modeling and simulation of microstructure in metallic systems based on multi-physics approaches

JR Mianroodi, P Shanthraj, C Liu, S Vakili… - npj Computational …, 2022 - nature.com
The complex interplay between chemistry, microstructure, and behavior of many
engineering materials has been investigated predominantly by experimental methods …

Incorporating the CALPHAD sublattice approach of ordering into the phase-field model with finite interface dissipation

L Zhang, M Stratmann, Y Du, B Sundman, I Steinbach - Acta Materialia, 2015 - Elsevier
A new approach to incorporate the sublattice models in the CALPHAD (CALculation of
PHAse Diagram) formalism directly into the phase-field formalism is developed. In binary …

[HTML][HTML] Coupling of alloy chemistry, diffusion and structure by grain boundary engineering in Ni–Cr–Fe

B Bian, S Taheriniya, GM Muralikrishna, S Sen… - Acta Materialia, 2024 - Elsevier
The diffusion–microstructure correlations for grain boundaries (GBs) in the technologically-
relevant Ni-based 602CA alloy are investigated. Prolonged annealing treatments up to 744 …

Precipitation of T1 and θ′ Phase in Al-4Cu-1Li-0.25Mn During Age Hardening: Microstructural Investigation and Phase-Field Simulation

I Häusler, C Schwarze, MU Bilal, D Valencia Ramirez… - Materials, 2017 - mdpi.com
Experimental and phase field studies of age hardening response of a high purity Al-4Cu-1Li-
0.25 Mn-alloy (mass%) during isothermal aging are conducted. In the experiments, two …

First Evidence for Mechanism of Inverse Ripening from In-situ TEM and Phase-Field Study of δ′ Precipitation in an Al-Li Alloy

J Park, RD Kamachali, SD Kim, SH Kim, CS Oh… - Scientific reports, 2019 - nature.com
In-situ TEM investigation of aging response in an Al–7.8 at.% Li was performed at 200° C up
to 13 hours. Semi-spherical δ′ precipitates growing up to an average radius of 7.5 nm were …

Effect of temperature gradient on microstructure evolution in Ni–Al–Cr bond coat/substrate systems: A phase-field study

N Ta, L Zhang, Y Tang, W Chen, Y Du - Surface and Coatings Technology, 2015 - Elsevier
Abstract Two-dimensional (2-D) phase-field simulations were employed in the present work
to investigate the effect of temperature gradient on the microstructure evolution in various Ni …

A quantitative phase-field model for two-phase elastically inhomogeneous systems

A Durga, P Wollants, N Moelans - Computational Materials Science, 2015 - Elsevier
Solid-state phase transformations are influenced by strains that are generated internally or
applied externally. The stress state, composition, and microstructure evolution, which …

[HTML][HTML] Creep anisotropy of additively manufactured Inconel-738LC: Combined experiments and microstructure-based modeling

K Kianinejad, RD Kamachali, A Khedkar… - Materials Science and …, 2024 - Elsevier
The current lack of quantitative knowledge on processing-microstructure–property
relationships is one of the major bottlenecks in today's rapidly expanding field of additive …

Numerical benchmark of phase-field simulations with elastic strains: precipitation in the presence of chemo-mechanical coupling

RD Kamachali, C Schwarze, M Lin, M Diehl… - Computational Materials …, 2018 - Elsevier
Phase-field studies of solid-state precipitation under strong chemo-mechanical coupling are
performed and benchmarked against the existing analytical solutions. The open source …

Phase-field study of ripening and rearrangement of precipitates under chemomechanical coupling

C Schwarze, A Gupta, T Hickel, R Darvishi Kamachali - Physical Review B, 2017 - APS
We investigate the evolution of large number of δ′ coherent precipitates from a
supersaturated Al-8 at.% Li alloy using large-scale phase-field simulations. A …