Irradiation-induced embrittlement of a 2.25Cr1Mo steel

Authors
Song, SH Faulkner, RG Flewitt, PEJ Smith, RF Marmy, P Victoria, M
Citation
Sh. Song et al., Irradiation-induced embrittlement of a 2.25Cr1Mo steel, J NUCL MAT, 280(2), 2000, pp. 162-168
Citations number
13
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Nuclear Emgineering
Journal title
JOURNAL OF NUCLEAR MATERIALS
ISSN journal
00223115 → ACNP
Volume
280
Issue
2
Year of publication
2000
Pages
162 - 168
Database
ISI
SICI code
0022-3115(200008)280:2<162:IEOA2S>2.0.ZU;2-X
Abstract
Irradiation-induced embrittlement of a 2.25CrlMo is investigated by means o f small punch testing and scanning electron microscopy (SEM). The ductile-b rittle transition temperature (DBTT) determined by the small punch test is much lower than that determined by the standard Charpy test. There are some irradiation-induced embrittlement effects after the steel is irradiated at about 270 degrees C for 46 days with a neutron dose rate of 1.05 x 10(-8) dpa s(-1) and at about 400 degrees C for 86 days with a neutron dose rate o f 1.75 x 10(-8) dpa s(-1). In addition, there is some temper embrittlement after the steel is aged at about 400 degrees C for 86 days. (C) 2000 Elsevi er Science B.V. All rights reserved.