Grain boundary softening from stress assisted helium cavity coalescence in ultrafine-grained tungsten

WS Cunningham, Y Zhang, SL Thomas, O El-Atwani… - Acta Materialia, 2023 - Elsevier
The formation of helium cavities in coarse-grained materials produces hardening
proportional to the number density and size of the cavities and due to the interaction of …

Interaction of transmutation products with precipitates, dislocations and grain boundaries in neutron irradiated W

MJ Lloyd, AJ London, JC Haley, MR Gilbert… - Materialia, 2022 - Elsevier
Tungsten is the primary candidate materials for the high neutron flux, high temperature
components of a future demonstration fusion reactor. Despite this, there is a lack of data on …

[HTML][HTML] A Brief Review of the Impact of Neutron Irradiation Damage in Tungsten and Its Alloys

A Wazeer, T McElroy, BT Stegman, A Shang, Y Zhang… - Metals, 2024 - mdpi.com
Neutron irradiation poses a substantial challenge in the development and application of
tungsten (W) and its alloys, predominantly in the framework of nuclear fusion and fission …

Advanced self-passivating alloys for an application under extreme conditions

A Litnovsky, F Klein, X Tan, J Ertmer, JW Coenen… - Metals, 2021 - mdpi.com
Self-passivating Metal Alloys with Reduced Thermo-oxidation (SMART) are under
development for the primary application as plasma-facing materials for the first wall in a …

First-principles study of the energetics and the local chemical ordering of tungsten-based alloys

Y Qian, MR Gilbert, L Dezerald… - arXiv preprint arXiv …, 2024 - arxiv.org
Tungsten (W) is considered a leading candidate for structural and functional materials in
future fusion energy devices. The most attractive properties of tungsten for magnetic and …

[HTML][HTML] Post neutron irradiation annealing and defect evolution in single crystal tungsten

D Papadakis, K Mergia, E Manios, V Chatzikos… - Nuclear Materials and …, 2023 - Elsevier
Single crystal W is offered for Physics understanding of irradiation induced defects and their
annealing as its structure is well defined and it is almost defect free. W (1 0 0) single crystal …

[HTML][HTML] A First-Principles Study of the Structural and Thermo-Mechanical Properties of Tungsten-Based Plasma-Facing Materials

J Peng, Y Qian, D Cereceda - Metals, 2024 - mdpi.com
Tungsten (W) and tungsten alloys are being considered as leading candidates for structural
and functional materials in future fusion energy devices. The most attractive properties of …

[HTML][HTML] Composition stability of single fcc phase in Cr–Fe–Mn–Ni alloys: First-principles prediction and experimental validation

M Fedorov, JS Wróbel, W Chromiński, G Cieślak… - Acta Materialia, 2023 - Elsevier
The relative phase stability of fcc and bcc Cr–Fe–Mn–Ni alloys has been investigated using
a combination of density functional theory, cluster expansion (CE), and Monte Carlo (MC) …

[HTML][HTML] Vacancy formation free energy in concentrated alloys: Equilibrium vs. random sampling

K Li, T Schuler, CC Fu, M Nastar - Acta Materialia, 2024 - Elsevier
Abstract Special Quasi-random Structures (SQSs) are often used to model disordered alloys
in small simulation cells. Yet, SQS-based sampling yields defect formation energies that do …

Development of a solute and defect concentration dependant Ising model for the study of transmutation induced segregation in neutron irradiated W–(Re, Os) systems

MJ Lloyd, E Martinez, L Messina… - Journal of Physics …, 2021 - iopscience.iop.org
In this study, radiation-induced precipitation of transmutation products is addressed via the
development of a new solute and vacancy concentration dependant Ising model for the W …