Short-range order and phase stability of CrCoNi explored with machine learning potentials

S Ghosh, V Sotskov, AV Shapeev, J Neugebauer… - Physical Review …, 2022 - APS
We present an analysis of temperature-dependent atomic short-range ordering and phase
stability of the face-centered cubic CrCoNi medium-entropy alloy employing a combination …

Diffuse electron scattering reveals kinetic frustration as origin of order in CoCrNi medium entropy alloy

DL Foley, AK Barnett, Y Rakita, A Perez, PP Das… - Acta Materialia, 2024 - Elsevier
Equimolar CoCrNi is driven towards a long-range structure with transformation
characteristics similar to that of a strain glass alloy due to the specific stoichiometry and …

[HTML][HTML] Effect of solution cooling rates on microstructure and mechanical properties of K648 high chromium superalloy additive-manufactured by the extreme high …

K Wang, W Liu, Y Hong, D Du, B Chang, Y Tong… - Journal of Materials …, 2023 - Elsevier
High chromium superalloy K648, additive-manufactured by extreme high-speed laser metal
deposition (EHLMD) process, was heat treated by solution and then cooled at different …

The formation and evolution of Ni2Cr precipitates in Ni–Cr model alloys as a function of stoichiometry characterized by synchrotron x-ray diffraction

N Aerne, DJ Sprouster, JD Tucker - Materials Science and Engineering: A, 2022 - Elsevier
Ni-based alloys containing significant amounts of Cr, may precipitate new phases during
long-term service at elevated temperatures. In Ni–Cr model alloys, the formation of Ni 2 Cr …

Deformation twinning versus slip in Ni-based alloys, containing Pt2Mo-structured, Ni2Cr-typed precipitates

HT Vo, K Dang, F Teng, M Schneider, BP Eftink… - Materials & Design, 2021 - Elsevier
Nickel-based alloys are extensively used in a wide range of extreme environments because
of their exceptional mechanical properties. The excellent strength of these alloys is derived …

Unexpected deformation-induced martensitic phase transformations in Ni–Cr and Ni–Cr–Fe alloys

CD Clement, C Yang, JP Wharry - Materials Science and Engineering: A, 2024 - Elsevier
Abstract Deformation of Ni–Cr and Ni–Cr–Fe alloys has historically been understood to
occur through dislocation slip, while deformation-induced martensitic transformations are …

Role of Fe in long-range ordered Ni2Cr precipitates in Ni-Cr-Fe model alloys during isothermal aging

NJ Aerne, DJ Sprouster, JD Tucker - Materials Science and Engineering: A, 2023 - Elsevier
The precipitation of new phases during long-term service at elevated temperatures is a
concern for the thermal stability of engineering alloys. In Ni-Cr-based alloys, eg, Alloy 690 …

Study of solid state transformations and their effect on mechanical response in the stoichiometric Ni2Cr using in-situ synchrotron radiation diffraction experiments

J Medina, P Pérez, MF Vega, G Garcés… - Materials …, 2022 - Elsevier
A complete microstructural characterization of the stoichiometric Ni 2 Cr alloy after different
ageing times in which different degrees of order are attained has been carried out. The study …

Accelerated corrosion of Ni-based alloys in molten chloride salts, due to Ni2Cr phase formation

F Teng, TM Copeland-Johnson, JD Tucker, G Cao - Materialia, 2023 - Elsevier
To understand how the precipitation of long-range ordering (LRO) in alloys affects molten
salt corrosion, two Ni-Cr model alloys—one in as-received (AR) condition, the other …

[PDF][PDF] NSUF Annual Report

TM Adams - 2021 - osti.gov
The layers in tristructural isotropic (TRISO) coated particle fuel are engineered to work as an
integrated system to limit failure and fission product release. Fission product release from …