Microstructural development of tungsten and tungsten-rhenium alloys due to neutron irradiation in HFIR

被引：132

作者：

Fukuda, Makoto ^{[1
]}

Yabuuchi, Kiyohiro ^{[1
]}

Nogami, Shuhei ^{[1
]}

Hasegawa, Akira ^{[1
]}

Tanaka, Teruya ^{[2
]}

机构：

[1] Tohoku Univ, Dept Quantum Sci & Energy Engn, Aoba Ku, Sendai, Miyagi 9808579, Japan

[2] Natl Inst Nat Sci, Natl Inst Fus Sci, Toki, Gifu 5095292, Japan

来源：

JOURNAL OF NUCLEAR MATERIALS | 2014年 / 455卷 / 1-3期

关键词：

TRANSMUTATION; RE;

D O I：

10.1016/j.jnucmat.2014.08.002

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The microstructural development of pure tungsten (W) and tungsten-rhenium (Re) alloys due to neutron irradiation in the High Flux Isotope Reactor (HFIR) at Oak Ridge National Laboratory, TN, USA, was investigated in this work. The irradiation conditions were similar to 1 displacements per atom (dpa) at 500 and 800 degrees C. After the neutron irradiation, microstructural observations were performed using a transmission electron microscope (TEM). Large amounts of precipitates identified as sigma- and chi-phases were observed in not only the W-Re alloys but also in the pure W after the neutron irradiation. The precipitates observed in the pure W were coarse and larger than those in the W-Re alloys. This was considered to be caused by the transmutation products of W and Re, namely, Re and osmium (Os), respectively, under irradiation in the HEIR with a higher contents of thermal neutron flux. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：460 / 463

页数：4

共 18 条

[1] Hardening of self ion implanted tungsten and tungsten 5-wt% rhenium [J].

Armstrong, D. E. J. ;

Yi, X. ;

Marquis, E. A. ;

Roberts, S. G. .

JOURNAL OF NUCLEAR MATERIALS, 2013, 432 (1-3) :428-436

[2] Plasma facing and high heat flux materials - needs for ITER and beyond [J].

Bolt, H ;

Barabash, V ;

Federici, G ;

Linke, J ;

Loarte, A ;

Roth, J ;

Sato, K .

JOURNAL OF NUCLEAR MATERIALS, 2002, 307 :43-52

[3] Transmutation and phase stability of tungsten armor in fusion power plants [J].

Cottrell, G. A. ;

Pampin, R. ;

Taylor, N. P. .

FUSION SCIENCE AND TECHNOLOGY, 2006, 50 (01) :89-98

[4]

Desecures M., 2012, UWFDM1411

[5] Effects of Re Content and Fabrication Process on Microstructural Changes and Hardening in Neutron Irradiated Tungsten [J].

Fukuda, Makoto ;

Tanno, Takashi ;

Nogami, Shuhei ;

Hasegawa, Akira .

MATERIALS TRANSACTIONS, 2012, 53 (12) :2145-2150

[6] Neutron-induced transmutation effects in W and W-alloys in a fusion environment [J].

Gilbert, M. R. ;

Sublet, J. -Ch .

NUCLEAR FUSION, 2011, 51 (04)

[7]

Greenwood L. R., 2010, DOEER031348, p149e153

[8] TRANSMUTATION OF MO, RE, W, HF, AND V IN VARIOUS IRRADIATION TEST FACILITIES AND STARFIRE [J].

GREENWOOD, LR ;

GARNER, FA .

JOURNAL OF NUCLEAR MATERIALS, 1994, 212 (pt A) :635-639

[9] Neutron Irradiation Behavior of Tungsten [J].

Hasegawa, Akira ;

Fukuda, Makoto ;

Tanno, Takashi ;

Nogami, Shuhei .

MATERIALS TRANSACTIONS, 2013, 54 (04) :466-471

[10] REVIEW OF CHROMIUM, MOLYBDENUM, AND TUNGSTEN ALLOYS [J].

KLOPP, WD .

JOURNAL OF THE LESS-COMMON METALS, 1975, 42 (03) :261-278

← 1 2 →