Published July 2011 | Version v1
Journal article Metadata-only

Microstructure development in neutron irradiated tungsten alloys

Creators

  • 1. Tohoku Univ., Graduate School of Engineering, Sendai, Miyagi (Japan)

Description

The aim of this work is to investigate the influence of neutron irradiation condition, especially temperature, on irradiation hardening and microstructure development in irradiated tungsten-rhenium (W-Re) alloys. Neutron irradiations were carried out in JOYO at the range of 400 to 750degC, up to 1.54 dpa. Micro Vickers hardness tests and micro structural observations using a TEM were performed. Irradiation hardening of W-Re alloys irradiated at 538degC were clearly larger than those irradiated at other temperatures. Fine voids and fine needle- or plate-like precipitates were observed in pure W and W-Re alloys irradiated at 538degC, respectively, with high number density. The fine complex microstructure seems to be the cause of the characteristic irradiation hardening. (author)

Availability note (English)

Available from http://dx.doi.org/10.2320/matertrans.MBW201025

Additional details

Identifiers

DOI
10.2320/matertrans.MBW201025;

Publishing Information

Journal Title
Materials Transactions
Journal Volume
52
Journal Issue
7
Journal Page Range
p. 1447-1451
ISSN
1345-9678

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
43065027
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
HARDENING; IRRADIATION; MICROSTRUCTURE; NEUTRONS; PRECIPITATION; THERMONUCLEAR REACTORS; TRANSMISSION ELECTRON MICROSCOPY; TRANSMUTATION; TUNGSTEN; TUNGSTEN ALLOYS; VICKERS HARDNESS
Descriptors DEC
ALLOYS; BARYONS; ELECTRON MICROSCOPY; ELEMENTARY PARTICLES; ELEMENTS; FERMIONS; HADRONS; METALS; MICROSCOPY; NUCLEONS; REFRACTORY METALS; SEPARATION PROCESSES; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENTS

Optional Information

Notes
20 refs., 5 figs., 2 tabs.