About mechanisms of radiation-induced effect of nanostructurization of near-surface volumes of metals

7th International Conference Radiation-thermal Effects and Processes in Inorganic Materials

材料科学;物理学

Ivchenko, V.A.^1,2

Institute of Electrophysics, Ural Branch, Russian Academy of Sciences, ul. Amundsena 106, Ekaterinburg

620016, Russia^1

Yeltsin Ural Federal University, Yekaterinburg

620002, Russia^2

关键词: Deformation mechanism;    Field ion microscopy;    Ion channeling;    Nano-meter scale;    Nanostructure formation;    Near surfaces;    Radiation-induced;    Radiation-induced effects;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/168/1/012010/pdf
DOI  :  10.1088/1757-899X/168/1/012010

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Mechanisms of the radiation-induced development of nanostructures in subsurface metal regions have been analyzed based on field-ion microscopy data. It is concluded that the modification of near-surface metal regions on a nanometer scale as a result of the interaction with Ar+ion beams proceeds by several mechanisms. In particular, for a fluence of F = 1016ion/cm2(at an ion energy of E = 30 keV), the main contribution is due to the ion channeling. A tenfold increase in the ion fluence leads to prevailing deformation mechanism in nanostructure formation in the subsurface metal regions.