Features of relief formation of the polycrystalline samples under the influence of a wide-aperture ion beam

10th International School-Conference on Materials for Extreme Environment: Development, Production and Application

Yashin, A.S.^1

National Research Nuclear University MEPhI, Moscow Engineering Physics Institute, Kashirskoe Highway 31, Moscow

115409, Russia^1

关键词: Angle of Incidence;    Cladding tubes;    Cylindrical surface;    Design features;    Near-surface layers;    Outer surface;    Polycrystalline samples;    Surface forms;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/130/1/012052/pdf
DOI  :  10.1088/1757-899X/130/1/012052

来源: IOP

【 摘 要 】

The results of investigation of the cylindrical surface state after influence of wide- aperture ion beam are presented in this paper. Experiments were carried out on the parts of cladding tubes from E110 alloy (Zr-1%Nb) up to 500 mm length. The outer surface of the tubes was treated by Ar+ions with energy 0.1-1.0 keV up to doses (1-10)? 1018cm-2on the installation KVK-10. Due to design features of the installation, the angle of incidence of particles on the surface varied from 0 to 90°. It is found that as a result of treatment made, smoothed relief of the surface forms and uniformity of near-surface layer structure improves. The statistical method suggested allowed to reveal features of the polycrystalline samples surface state with random and regular components, based on the results of profilograms analysis.