Gamma-ray (electron) irradiation effects on tensile properties of ferritic alloys

被引：16

作者：

Alexander, DE ^{[1
]}

Rehn, LE ^{[1
]}

Farrell, K ^{[1
]}

Stoller, RE ^{[1
]}

机构：

[1] OAK RIDGE NATL LAB, DIV MET & CERAM, OAK RIDGE, TN 37831 USA

来源：

JOURNAL OF NUCLEAR MATERIALS | 1996年 / 228卷 / 01期

关键词：

D O I：

10.1016/0022-3115(95)00197-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We demonstrate that high-energy electron irradiation can be used to study gamma-ray embrittlement of reactor pressure vessels. Observed changes in tensile properties, in ferritic alloys electron irradiated at low temperature (less than or equal to 50 degrees C), correlate well with neutron irradiation data when compared simply on a displacement per atom basis. The similarity in embrittlement behavior between gamma-rays (electrons) and neutrons can be explained in terms of a reaction-rate theory model of defect production and clustering. The present results, obtained under well-controlled experimental conditions, provide strong support for a previous analysis implicating gamma-ray damage as the source of the ''accelerated'' embrittlement of the High Flux Isotope Reactor (HFIR) pressure vessel.

引用

页码：68 / 76

页数：9

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