Polarised SANS study of microstructural evolution under neutron irradiation in a martensitic steel for fusion reactors

被引：7

作者：

Coppola, R

Dewhurst, CD

Lindau, R

May, RP

Möslang, A

Valli, M

机构：

[1] ENEA, I-0100 Rome, Italy

[2] Inst Max Von Laue Paul Langevin, F-38042 Grenoble 9, France

[3] Forschungszentrum Karlsruhe, IMF, D-76021 Karlsruhe, Germany

[4] ENEA, FIS, I-40129 Bologna, Italy

来源：

PHYSICA B-CONDENSED MATTER | 2004年 / 345卷 / 1-4期

关键词：

polarised SANS; steels; radiation damage;

D O I：

10.1016/j.physb.2003.11.060

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

This work presents the results of polarised small-angle neutron scattering (SANS) measurements of modified martensitic steel DIN1.4914, originally developed for application in future fusion reactors (MANET steel). SANS measurements were made using the D22 instrument at the ILL Grenoble using an ad hoc polarised beam set-up. The investigated MANET samples were neutron irradiated and subsequently post-irradiation tempered to reproduce as much as possible the expected service conditions. The results, based on the analysis of the nuclear-magnetic interference, are discussed taking into account both the occurrence of Cr redistribution phenomena with correlated 9 changes in the composition of the precipitate phases, and the growth of non-magnetic defects (He-bubbles or microvoids). (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：225 / 230

页数：6

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