Work

Thermal and irradiation disorder in porous additively manufactured 316H steel: A molecular dynamics study

Year: 2026

Type: article

Abstract: This study uses molecular dynamics simulations to examine how temperature, irradiation energy, and porosity influence the atomic structure of additively manufactured 316H stainless steel. The first peak of the radial distribution function g(r) broadens, indicating increased disorder, while the first peak of the structure factor S(q) intensifies, reflecting stronger short-range order. We developed an additive model that separates temperature-driven vibrational effects from irradiation and porosity-induced static disorder, providing a clear framework to quantify damage. These results offer key insights for designing radiation-tolerant materials with engineered porosity for nuclear applications.

Source: Materials Letters

DOI: 10.1016/j.matlet.2026.140298

Authors: Mahmoud A. Mahrous, Muhammad A. Abdelghany, Dren Qerimi, Iwona M. Jasiuk

Institution: University of Illinois Urbana-Champaign

Language: English

Topic: Fusion materials and technologies

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $2,870

Funder: National Science Foundation