Changes in structure of the surface and edges of beryllium plates as a result of thermal cycling tests

被引：7

作者：

Skakov, M. K. ^{[1
]}

Sokolov, I. A. ^{[2
]}

Miniyazov, A. Zh. ^{[2
]}

Tulenbergenov, T. R. ^{[2
]}

Sapatayev, Ye. Ye. ^{[2
]}

Orazgaliyev, N. A. ^{[2
]}

Bukina, O. S. ^{[2
]}

机构：

[1] Natl Nucl Ctr Republ Kazakhstan, Kurchatov, Kazakhstan

[2] Natl Nucl Ctr Republ Kazakhstan, Inst Atom Energy Branch, Krasnoarmeysaya St 10, Kurchatov 071100, Kazakhstan

来源：

FUSION ENGINEERING AND DESIGN | 2022年 / 183卷

关键词：

ITER; Beryllium; Plasma; Tokamak; Fusion; Heat load; HEAT LOAD; 1ST WALL; PLASMA;

D O I：

10.1016/j.fusengdes.2022.113251

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

In this paper, experiments were conducted on the thermal effect of an electron beam on beryllium of the TGP-56 grade in vacuum, at the values of the surface temperature of beryllium similar to 360, similar to 800 and similar to 1200 degrees C with the number of pulses 10 and 100 with the same pulse duration - 500 s. A complex of material research such as microanalysis, x-ray diffraction analysis, determination of microhardness was conducted. The experimental data on changes in mechanical properties and melting conditions of beryllium at the boundary between gaps of the plates of the ITER first wall as a result of heat loads were obtained. It was found that in the normal operation mode of ITER (2.0-4.7 MW) the edges of beryllium have good resistance to spraying. Under critical conditions, closer to the melting point, beryllium is strongly sprayed.

引用

页数：7

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