Helium and radiation defect accumulation in metals under stress

被引：13

作者：

Dobmann, G.

Korshunov, S. N. ^{[1
]}

Kroening, M.

Martynenko, Yu. V. ^{[1
]}

Skorlupkin, I. D. ^{[1
]}

Surkov, A. S.

机构：

[1] IV Kurchatov Atom Energy Inst, Russian Res Ctr, Inst Nucl Fus, Moscow 123182, Russia

来源：

VACUUM | 2008年 / 82卷 / 08期

关键词：

nuclear reactor materials; helium embrittlement; helium porosity; stress; ion implantation; helium release;

D O I：

10.1016/j.vacuum.2008.01.044

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The results of investigations of radiation-induced porosity in 18-10 austenitic steel after irradiation by 40-keV He+ ions and thermomechanical treatment are presented. External tensile stress was shown to result in an increase in He bubble size. Helium bubble migration and accumulation on grain boundaries was observed. Bubble clusters on grain boundaries are origins of brittle failure of the material. Helium bubbles increase also during post-radiation annealing. Post-radiation deformation of the material results in a considerable increase in the release rate of implanted helium gas. (C) 2008 Published by Elsevier Ltd.

引用

页码：856 / 866

页数：11

共 15 条

[1]

ALIMOV VK, 1982, J TECH PHYS, V52, P82

[2]

FRENKEL YI, 1975, KINETIC THEORY LIQUI, P197

[3] Diffusion of He interstitial and di-He cluster at grain boundaries in α-Fe [J].