Heat treatment effect on fracture toughness of F82H irradiated in HFIR

被引：10

作者：

Okubo, N. ^{[1
]}

Sokolov, M. A. ^{[2
]}

Tanigawa, H. ^{[1
]}

Hirose, T. ^{[1
]}

Jitsukawa, S. ^{[1
]}

Sawai, T. ^{[1
]}

Odette, G. R. ^{[3
]}

Stoller, R. E. ^{[2
]}

机构：

[1] Japan Atom Energy Agcy, Tokai, Ibaraki 3191195, Japan

[2] Oak Ridge Natl Lab, Oak Ridge, TN 37830 USA

[3] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA

来源：

JOURNAL OF NUCLEAR MATERIALS | 2011年 / 417卷 / 1-3期

关键词：

RESEARCH-AND-DEVELOPMENT; FERRITIC/MARTENSITIC STEELS;

D O I：

10.1016/j.jnucmat.2011.05.020

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Irradiation hardening and fracture toughness of reduced-activation ferritic/martensitic steel F82H after irradiation were investigated with a focus on changing the fracture toughness transition temperature as a result of several heat treatments. The specimens were standard F82H-IEA (IEA), F82H-IEA with several heat treatments (Mod1 series) and a heat of F82H (Mod3) containing 0.1% tantalum. The specimens were irradiated up to 20 dpa at 300 degrees C in the High Flux Isotope Reactor under a collaborative research program between JAEA/US-DOE. The results of hardness tests showed that irradiation hardening of [EA was comparable with that of Mod3. However, the fracture toughness-transition temperature of Mod3 was lower than that of IEA. The transition temperature of Mod1 was also lower than that of the IEA heat. These results suggest that optimization of specifications on the heat treatment condition and modification of the minor alloying elements seem to be effective to reduce the fracture toughness-transition temperature after irradiation. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：112 / 114

页数：3

共 5 条

[1] Current status and future R&D for reduced-activation ferritic/martensitic steels [J].