Increasing Thermal Stability of the Surface of Submicrocrystalline Nickel under High-Fluence Ion Irradiation

被引：2
|
作者：
Borisov, A. M. [1 ,2 ]
Mashkova, E. S. [3 ]
Ovchinnikov, M. A. [3 ]
Khisamov, R. K. [4 ]
Musabirov, I. I. [4 ]
Shayakhmetov, R. U. [4 ]
Mulyukov, R. R. [4 ]
机构：
[1] Natl Res Univ, Moscow Aviat Inst, Moscow 125993, Russia
[2] Moscow State Univ Technol STANKIN, Moscow 127055, Russia
[3] Moscow MV Lomonosov State Univ, Skobeltsyn Inst Nucl Phys, Moscow 119991, Russia
[4] Russian Acad Sci, Inst Met Superplast Problems, Ufa 450001, Russia
来源：
JOURNAL OF SURFACE INVESTIGATION | 2023年 / 17卷 / 01期
基金：
俄罗斯科学基金会;
关键词：
nickel; high-pressure torsion; submicron structure; high-fluence ion irradiation; cones; thermal stability; ELECTRON-EMISSION; EROSION;
D O I：
10.1134/S102745102301007X
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
-The results of an experimental study of the effect of high-fluence ion irradiation on the thermal stability of the microstructure and surface relief of submicrocrystalline nickel are presented and discussed. The submicron structure of nickel is obtained during severe plastic deformation by torsion under a high pressure of 6 GPa. Irradiation with 30-keV argon ions with a dose of 3 x 10(18) cm(-2) is carried out. The ion irradiation of submicrocrystalline nickel is shown to lead to the formation of a cone-shaped surface morphology. This morphology is thermally stable up to a temperature of at least 500 degrees C. Using etching with a focused 30-keV gallium-ion beam, a surface layer 10-mu m thick of irradiated submicrocrystalline nickel annealed at 500 degrees C is studied. It is found that the ion-induced cone-shaped morphology of the surface could be preserved during annealing and block grain growth in the surface layer.
引用
收藏
页码：54 / 58
页数：5
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