Effects of electron–phonon coupling on damage accumulation in molecular dynamics simulations of irradiated nickel

Autor:	Eva Zarkadoula, German Samolyuk, William J. Weber
Jazyk:	angličtina
Rok vydání:	2019
Předmět:	Molecular dynamics two-temperature model electronic effects electron–phonon coupling Nickel Materials of engineering and construction. Mechanics of materials TA401-492
Zdroj:	Materials Research Letters, Vol 7, Iss 12, Pp 490-495 (2019)
Druh dokumentu:	article
ISSN:	2166-3831 21663831
DOI:	10.1080/21663831.2019.1659435
Popis:	The role of the electronic system in high energy displacement cascades is explored. The energy exchange between the electronic and the atomic subsystem is described by the electron–phonon coupling. The electronic effects on the damage accumulation due to 100 keV Ni ion cascades in nickel, a prototype system to a large group of nickel-based high entropy alloys, are investigated for overlapping cascades. It is shown that the energy exchange between the two subsystems affects microstructure evolution, resulting in the formation of smaller clusters and more isolated defects. This effect is more significant for the vacancy cluster formation and size distribution.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/0cab116f30ed4e16927a5006140152a7 Zobrazit plný text záznamu View record in DOAJ