Crack resistance behavior of ODS and standard 9%Cr-containing steels at high temperature

被引：26

作者：

Chaouadi, R. ^{[1
]}

Coen, G. ^{[1
]}

Lucon, E. ^{[1
]}

Massaut, V. ^{[1
]}

机构：

[1] CEN SCK, Belgian Nucl Res Ctr, B-2400 Mol, Belgium

来源：

JOURNAL OF NUCLEAR MATERIALS | 2010年 / 403卷 / 1-3期

关键词：

DISPERSION-STRENGTHENED-STEELS; MECHANICAL-PROPERTIES; NEUTRON-IRRADIATION; EUROFER; 14YWT;

D O I：

10.1016/j.jnucmat.2010.05.021

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

9%Cr-Oxide Dispersion Strengthened (ODS) steels are under intense research in the EU and other countries to extend the operation temperature range of ferritic alloys towards 600-650 degrees C. Unfortunately, fracture toughness behavior in this high temperature range is missing. Therefore, the main objective of this work is to evaluate the crack resistance behavior of a 9%Cr ODS steel in the range of 300-650 degrees C and comparison to the standard nonODS Eurofer-97 steel. Test results on the ODS steel show a drastic decrease of both initiation toughness and tearing resistance with increasing test temperature. In particular, above 550 degrees C, the crack resistance curve (J-R curve) of ODS Eurofer is extremely low while the standard Eurofer-97 exhibit a much higher crack resistance curve. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：15 / 18

页数：4

共 14 条

[1] Loading rate effect on ductile crack resistance of steels using precracked Charpy specimens [J].