Work

Mechanical Response of Irradiated Niobium-Tin Alloy with Nanoscale A15-phase Precipitates: Phase-Field Modeling

Year: 2026

Type: conference-paper

Abstract: The mechanical response of unirradiated and post-irradiated Nb-20%Sn alloys containing nanoscale precipitates of the A15 phase is investigated within a phase-field approach coupled with nonlinear elasticity theory. Pre-obtained microstructures formed during long-term thermal treatment and subsequent irradiation are used as initial configurations for simulations of mechanical deformation. The evolution of elastic fields is described using a nonlinear periodic elastic energy functional accounting for lattice mismatch, composition-dependent elastic moduli, and dislocation formation. The response of the alloy to shear deformation, compression, and tension is analyzed by solving the dynamic equations for elastic displacements.

Source: IEEE International Conference Nanomaterials: Applications & Properties (NAP)

DOI: 10.1109/nap71892.2026.11768460

Authors: Olha Shchokotova, Dmitrii Kharchenko, Vasyl Kharchenko

Institutions: National Academy of Sciences of Ukraine, Sumy State University

Language: English

Topic: Fusion materials and technologies

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Funder: Ministry of Education and Science of Ukraine

OpenAlex ID: W7225759723

FWCI:

Cites: 23

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Related to: 10