Modeling microstructure evolution of binary systems subjected to irradiation and mechanical loading

Autor:	Olga M. Shchokotova, Dmitrii O. Kharchenko, Irina O. Lysenko, Vasyl O. Kharchenko
Rok vydání:	2015
Předmět:	Nuclear and High Energy Physics Radiation Materials science Alloy engineering.material Condensed Matter Physics Microstructure Ultimate tensile strength engineering Shear stress Hardening (metallurgy) General Materials Science Irradiation Binary system Deformation (engineering) Composite material
Zdroj:	Radiation Effects and Defects in Solids. 170:584-600
ISSN:	1029-4953 1042-0150
DOI:	10.1080/10420150.2015.1063058
Popis:	We study a change in mechanical properties of binary systems subjected to irradiation influence described by ballistic flux of atomic mixing having regular and stochastic contributions. By using numerical modeling based on the phase field approach we study dynamics of deformation fields in a previously irradiated system and in the binary system deformed during irradiation. An influence of both deterministic and stochastic components of ballistic flux onto both yield strength and ultimate strength is studied. We have found that degradation of mechanical properties relates to the formation of percolating clusters of shear bands. Considering a hardening coefficient we analyze stages of plastic deformation of both initially irradiated alloy and alloy subjected to sustained irradiation. Stability of binary alloy under mechanical loading in the form of shear strain with a constant rate and cyclic deformation is discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::83094ce72f91291c9bba0a214f3bfa88 https://doi.org/10.1080/10420150.2015.1063058 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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