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 …

A discrete dislocation dynamics study of precipitate bypass mechanisms in nickel-based superalloys

S Chatterjee, Y Li, G Po - International Journal of Plasticity, 2021 - Elsevier
Order strengthening in nickel-based superalloys is associated with the extra stress required
for dislocations to bypass the γ′ precipitates distributed in the γ matrix. Depending on the …

Mechanisms for high creep resistance in alumina forming austenitic (AFA) alloys

B Gwalani, J Escobar, M Song, J Thomas, J Silverstein… - Acta Materialia, 2024 - Elsevier
Castable alumina forming austenitic (AFA) alloys have demonstrated superior creep life and
oxidation resistance at temperatures exceeding 800⁰C. Despite the success in the …

Coherency loss marking the onset of degradation in high temperature creep of superalloys: phase-field simulation coupled to strain gradient crystal plasticity

MA Ali, O Shchyglo, M Stricker, I Steinbach - Computational Materials …, 2023 - Elsevier
A dislocation density based crystal plasticity—phase-field model is applied to investigate
directional coarsening during creep in CMSX-4 Ni-based superalloys in the high …

[HTML][HTML] Multiphase-field analysis of the intermetallic compounds formation & evolution in friction stir welding of dissimilar Al/Mg alloys

F Zhao, L Shi, J Gao, CS Wu - Journal of Materials Research and …, 2024 - Elsevier
It is essential to understand the formation and evolution mechanism of intermetallic
compounds (IMCs) in friction stir welding (FSW) of dissimilar Al/Mg alloys to mitigate the …

Microstructure and nanoindentation creep behavior of IC10 directionally solidified superalloy repaired by laser metal deposition

G Liu, D Du, K Wang, Z Pu, D Zhang… - Materials Science and …, 2021 - Elsevier
In this study, the microstructure and nanoindentation creep behavior of IC10 directionally
solidified superalloy repaired by laser surface re-melting combined with quasi-continuous …

A novel Co-Ni-Ti-V-based superalloy exhibiting low density and high strength

C Wang, J Le, K Chen, C Yang, J Yu, Y Guo… - Materials Science and …, 2023 - Elsevier
This paper presents an innovative investigation on γ/γ'-strengthened multi-component Co-Ni-
Ti-V-based superalloys, which has led to the successful development of high-strength Co-Ni …

A Computationally Efficient Multiscale, Multi-Phase Modeling Approach Based on CPFEM to Assess the Effect of Second Phase Particles on Mechanical Properties

A Asgharzadeh, T Park, S Nazari Tiji, F Pourboghrat - Crystals, 2023 - mdpi.com
Crystal plasticity finite element (CPFEM) modeling of metals that can be age hardened
consisting of second phase particles is extensively performed based on representative …

[HTML][HTML] Effect of microsegregation and heat treatment on localised γ and γ'compositions in single crystal Ni-based superalloys

VCI Strutt, BM Jenkins, JM Woolrich, M Appleton… - Journal of Alloys and …, 2023 - Elsevier
The present work investigates the impact of residual segregation on the underlying
microstructure of a 3rd generation single crystal, nickel-based superalloy to understand …

[HTML][HTML] Influence of cooling rate on the microstructure and room temperature mechanical properties in the refractory AlMo0. 5NbTa0. 5TiZr superalloy

PS Ocaño, A Manzoni, I Lopez-Galilea, B Ruttert… - Journal of Alloys and …, 2023 - Elsevier
Refractory chemically complex alloys with bcc-based microstructures show great potential
for high-temperature applications but most of them exhibit limited room-temperature ductility …