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The effects of low doses of 14 MeV neutrons on the properties of various commercial copper alloys

Conference ·
OSTI ID:6776540
;

Miniature tensile specimens of high purity copper and five copper alloys were irradiated with D-T fusion neutrons in the RINS-II to fluences up to 2.5 x 10/sup 22/ n/m/sup 2/ at 90 and 290/sup 0/C. The series of alloys includes solution-strengthened, precipitate-strengthened and dispersion-strengthened alloys. To compare fission and fusion neutron effects, some of the alloys were also irradiated at the same temperatures to similar damage levels in the Omega West Reactor. Tensile tests were performed at room temperature, and the radiation-induced changes in tensile properties are examined as functions of fluence and displacements per atom (dpa). All the alloys sustain less irradiation-induced strengthening than pure copper. In contrast to pure copper, the effects of fission and fusion neutrons on the yield stress changes in the copper alloys correlate well on the basis of dpa.

Research Organization:
Hanford Engineering Development Lab., Richland, WA (USA)
DOE Contract Number:
AC06-76FF02170
OSTI ID:
6776540
Report Number(s):
HEDL-SA-3425-FP; CONF-860421-69; ON: DE87005460
Country of Publication:
United States
Language:
English

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Related Subjects

36 MATERIALS SCIENCE
360103* -- Metals & Alloys-- Mechanical Properties
360106 -- Metals & Alloys-- Radiation Effects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700209 -- Fusion Power Plant Technology-- Component Development & Materials Testing
ALLOYS
BARYON REACTIONS
COPPER
COPPER ALLOYS
COPPER BASE ALLOYS
ELEMENTS
ENRICHED URANIUM REACTORS
HADRON REACTIONS
IRRADIATION
MECHANICAL PROPERTIES
METALS
NEUTRON FLUENCE
NEUTRON REACTIONS
NEUTRON SOURCE FACILITIES
NUCLEAR REACTIONS
NUCLEON REACTIONS
OWR REACTOR
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
REACTORS
RESEARCH AND TEST REACTORS
RESEARCH REACTORS
STRESSES
TANK TYPE REACTORS
TENSILE PROPERTIES
TEST REACTORS
THERMAL REACTORS
TRANSITION ELEMENTS
WATER COOLED REACTORS
WATER MODERATED REACTORS
YIELD STRENGTH